One document matched: draft-ietf-ldapext-ldap-java-api-18.txt
Differences from draft-ietf-ldapext-ldap-java-api-17.txt
Network Working Group Rob Weltman
INTERNET-DRAFT Netscape Communications Corp.
Intended Category: Standards Track Christine Tomlinson
Sun Microsystems, Inc.
Steven Sonntag
Novell, Inc.
July 2002
The Java LDAP Application Program Interface
draft-ietf-ldapext-ldap-java-api-18.txt
Status of this Memo
This document is an Internet-Draft and is in full conformance with
all provisions of Section 10 of RFC2026.
Internet-Drafts are working documents of the Internet Task Force
(IETF), its areas, and its working groups. Note that other groups
may also distribute working documents as Internet-Drafts.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet Drafts as reference
material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
Abstract
This document defines a Java [JAVA] language application program
interface to the Lightweight Directory Access Protocol (LDAP)
[LDAPv3], in the form of a class library.
Conventions Used in this Document
The key words "MUST", "MUST NOT", "SHOULD", "SHOULD NOT", and "MAY"
in this document are to be interpreted as defined in "Key words for
use in RFCs to Indicate Requirement Levels" [KEYWORDS].
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1. Overview............................................................9
1.1 The LDAP model.....................................................9
1.2 Package name......................................................10
1.3 The LDAP classes..................................................10
1.4 The LDAP asynchronous methods.....................................11
1.5 Interfaces........................................................11
1.6 Classes...........................................................12
1.7 Exceptions........................................................15
1.8 LDAP API use......................................................15
2. The Java LDAP classes..............................................17
2.1 public class LDAPAttribute........................................17
2.1.1 Constructors....................................................17
2.1.2 addValue........................................................18
2.1.3 compareTo.......................................................18
2.1.4 getBaseName.....................................................18
2.1.5 getByteValues...................................................19
2.1.6 getByteValueArray...............................................19
2.1.7 getLangSubtype..................................................19
2.1.8 getName.........................................................19
2.1.9 getStringValueArray.............................................19
2.1.10 getStringValues................................................20
2.1.11 getSubtypes....................................................20
2.1.12 hasSubtype.....................................................20
2.1.13 hasSubtypes....................................................20
2.1.14 removeValue....................................................21
2.1.15 size...........................................................21
2.2 public class LDAPAttributeSchema..................................21
2.2.1 Constructors....................................................21
2.2.2 getEqualityMatchingRule.........................................23
2.2.3 getOrderingMatchingRule.........................................23
2.2.4 getSubstringMatchingRule........................................23
2.2.5 getSuperior.....................................................23
2.2.6 getSyntaxString.................................................23
2.2.7 getUsage........................................................23
2.2.8 isCollective....................................................24
2.2.9 isSingleValued..................................................24
2.2.10 isUserModifiable...............................................24
2.2.11 Constants of LDAPAttributeSchema...............................24
2.3 public class LDAPAttributeSet.....................................25
2.3.1 Constructors....................................................25
2.3.2 clone...........................................................25
2.3.3 getAttribute....................................................25
2.3.4 getSubset.......................................................26
2.4 public interface LDAPAuthHandler..................................27
2.4.1 getAuthProvider.................................................27
2.5 public class LDAPAuthProvider.....................................27
2.5.1 Constructors....................................................28
2.5.2 getDN...........................................................28
2.5.3 getPassword.....................................................28
2.6 public interface LDAPBindHandler..................................28
2.6.1 bind............................................................28
2.7 public class LDAPCompareAttrNames.................................29
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2.7.1 Constructors....................................................29
2.7.2 compare.........................................................30
2.7.3 equals..........................................................30
2.7.4 getLocale.......................................................31
2.7.5 setLocale.......................................................31
2.8 public class LDAPConnection.......................................31
2.8.1 Constructors....................................................31
2.8.2 abandon.........................................................32
2.8.3 add.............................................................33
2.8.4 addUnsolicitedNotificationListener..............................33
2.8.5 bind............................................................34
2.8.6 clone...........................................................36
2.8.7 compare.........................................................37
2.8.8 connect.........................................................38
2.8.9 delete..........................................................39
2.8.10 disconnect.....................................................39
2.8.11 extendedOperation..............................................40
2.8.12 fetchSchema....................................................41
2.8.13 finalize.......................................................41
2.8.14 getAuthenticationDN............................................41
2.8.15 getAuthenticationMethod........................................41
2.8.16 getConstraints.................................................42
2.8.17 getHost........................................................42
2.8.18 getPort........................................................42
2.8.19 getProperty....................................................42
2.8.20 getProtocolVersion.............................................43
2.8.21 getResponseControls............................................43
2.8.22 getSaslBindCallbackHandler.....................................43
2.8.23 getSaslBindProperties..........................................44
2.8.24 getSchemaDN....................................................44
2.8.25 getSearchConstraints...........................................44
2.8.26 getSocketFactory...............................................45
2.8.27 isBound........................................................45
2.8.28 isConnected....................................................45
2.8.29 isTLS..........................................................45
2.8.30 modify.........................................................45
2.8.31 read...........................................................47
2.8.32 removeUnsolicitedNotificationListener..........................48
2.8.33 rename.........................................................48
2.8.34 search.........................................................50
2.8.35 setConstraints.................................................52
2.8.36 setSocketFactory...............................................52
2.8.37 startTLS.......................................................53
2.8.38 stopTLS........................................................53
2.8.39 Constants of LDAPConnection....................................54
2.9 public class LDAPConstraints......................................54
2.9.1 Constructors....................................................54
2.9.2 getControls.....................................................55
2.9.3 getHopLimit.....................................................55
2.9.4 getProperty.....................................................55
2.9.5 getReferralFollowing............................................56
2.9.6 getTimeLimit....................................................56
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2.9.7 setControls.....................................................56
2.9.8 setHopLimit.....................................................56
2.9.9 setProperty.....................................................56
2.9.10 setReferralFollowing...........................................57
2.9.11 setReferralHandler.............................................57
2.9.12 setTimeLimit...................................................57
2.10 public class LDAPControl.........................................58
2.10.1 Constructors...................................................58
2.10.2 clone..........................................................58
2.10.3 getID..........................................................58
2.10.4 getValue.......................................................58
2.10.5 isCritical.....................................................59
2.10.6 register.......................................................59
2.10.7 setValue.......................................................59
2.11 public class LDAPDITContentRuleSchema............................59
2.11.1 Constructors...................................................59
2.11.2 getAuxiliaryClasses............................................61
2.11.3 getOptionalAttributes..........................................61
2.11.4 getPrecludedAttributes.........................................61
2.11.5 getRequiredAttributes..........................................61
2.12 public class LDAPDITStructureRuleSchema..........................61
2.12.1 Constructors...................................................61
2.12.2 getNameForm....................................................62
2.12.3 getRuleID......................................................62
2.12.4 getSuperiors...................................................63
2.13 public class LDAPDN..............................................63
2.13.1 equals.........................................................63
2.13.2 escapeRDN......................................................63
2.13.3 explodeDN......................................................63
2.13.4 explodeRDN.....................................................64
2.13.5 isValid........................................................64
2.13.6 normalize......................................................64
2.13.7 unescapeRDN....................................................65
2.14 public class LDAPEntry...........................................65
2.14.1 Constructors...................................................65
2.14.2 compareTo......................................................66
2.14.3 getAttribute...................................................66
2.14.4 getAttributeSet................................................66
2.14.5 getDN..........................................................67
2.15 public class LDAPException.......................................67
2.15.1 Constructors...................................................67
2.15.2 getCause.......................................................68
2.15.3 getLDAPErrorMessage............................................68
2.15.4 getResultCode..................................................68
2.15.5 getMatchedDN...................................................69
2.15.6 resultCodeToString.............................................69
2.15.7 toString.......................................................70
2.15.8 Result codes...................................................70
2.16 public class LDAPExtendedOperation...............................71
2.16.1 Constructors...................................................71
2.16.2 getID..........................................................71
2.16.3 getValue.......................................................72
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2.16.4 setValue.......................................................72
2.17 public class LDAPExtendedResponse................................72
2.17.1 getID..........................................................72
2.17.2 getValue.......................................................72
2.17.3 register.......................................................72
2.18 public class LDAPLocalException..................................73
2.18.1 Constructors...................................................73
2.19 public class LDAPMatchingRuleSchema..............................74
2.19.1 Constructors...................................................74
2.19.2 getAttributes..................................................75
2.19.3 getSyntaxString................................................75
2.20 public class LDAPMatchingRuleUseSchema...........................75
2.20.1 Constructors...................................................75
2.20.2 getAttributes..................................................76
2.21 public class LDAPMessage.........................................76
2.21.1 getControls....................................................76
2.21.2 getMessageID...................................................76
2.21.3 getType........................................................77
2.22 public interface LDAPMessageQueue................................77
2.22.1 getMessageIDs..................................................77
2.22.2 getResponse....................................................77
2.22.3 isResponseReceived.............................................78
2.22.4 merge..........................................................78
2.23 public class LDAPModification....................................79
2.23.1 Constructors...................................................79
2.23.2 getAttribute...................................................79
2.23.3 getOp..........................................................80
2.23.4 Constants of LDAPModification..................................80
2.24 public class LDAPNameFormSchema..................................80
2.24.1 Constructors...................................................80
2.24.2 getObjectClass.................................................81
2.24.3 getOptionalNamingAttributes....................................81
2.24.4 getRequiredNamingAttributes....................................81
2.25 public class LDAPObjectClassSchema...............................82
2.25.1 Constructors...................................................82
2.25.2 getOptionalAttributes..........................................83
2.25.3 getRequiredAttributes..........................................83
2.25.4 getSuperiors...................................................83
2.25.5 getType........................................................83
2.25.6 Constants of LDAPObjectClassSchema.............................83
2.26 public class LDAPReferralException...............................83
2.26.1 Constructors...................................................84
2.26.2 getFailedReferral..............................................84
2.26.3 getReferrals...................................................85
2.26.4 setFailedReferral..............................................85
2.27 public interface LDAPReferralHandler.............................85
2.28 public class LDAPResponse........................................85
2.28.1 getErrorMessage................................................85
2.28.2 getMatchedDN...................................................85
2.28.3 getReferrals...................................................85
2.28.4 getResultCode..................................................86
2.29 public class LDAPResponseQueue...................................86
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2.29.1 getMessageIDs..................................................86
2.29.2 getResponse....................................................86
2.29.3 isResponseReceived.............................................87
2.29.4 merge..........................................................87
2.30 public class LDAPSchema..........................................87
2.30.1 Constructors...................................................87
2.30.2 getAttributeNames..............................................88
2.30.3 getAttributeSchema.............................................88
2.30.4 getAttributeSchemas............................................88
2.30.5 getDITContentRuleNames.........................................88
2.30.6 getDITContentRuleSchema........................................88
2.30.7 getDITContentRuleSchemas.......................................88
2.30.8 getDITStructureRuleNames.......................................89
2.30.9 getDITStructureRuleSchema......................................89
2.30.10 getDITStructureRuleSchemas....................................89
2.30.11 getMatchingRuleNames..........................................89
2.30.12 getMatchingRuleSchema.........................................89
2.30.13 getMatchingRuleSchemas........................................90
2.30.14 getMatchingRuleUseNames.......................................90
2.30.15 getMatchingRuleUseSchema......................................90
2.30.16 getMatchingRuleUseSchemas.....................................90
2.30.17 getNameFormNames..............................................90
2.30.18 getNameFormSchema.............................................90
2.30.19 getNameFormSchemas............................................91
2.30.20 getObjectClassNames...........................................91
2.30.21 getObjectClassSchema..........................................91
2.30.22 getObjectClassSchemas.........................................91
2.30.23 getSyntaxSchema...............................................91
2.30.24 getSyntaxSchemas..............................................91
2.31 public abstract class LDAPSchemaElement..........................92
2.31.1 getDescription.................................................92
2.31.2 getNames.......................................................92
2.31.3 getID..........................................................92
2.31.4 getQualifier...................................................92
2.31.5 getQualifierNames..............................................93
2.31.6 isObsolete.....................................................93
2.31.7 setQualifier...................................................93
2.31.8 toString.......................................................93
2.32 public class LDAPSearchConstraints...............................93
2.32.1 Constructors...................................................93
2.32.2 getBatchSize...................................................95
2.32.3 getDereference.................................................95
2.32.4 getMaxResults..................................................95
2.32.5 getServerTimeLimit.............................................95
2.32.6 setBatchSize...................................................96
2.32.7 setDereference.................................................96
2.32.8 setMaxResults..................................................96
2.32.9 setServerTimeLimit.............................................96
2.32.10 Constants of LDAPSearchConstraints............................96
2.33 public class LDAPSearchQueue.....................................97
2.33.1 getMessageIDs..................................................97
2.33.2 getResponse....................................................97
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2.33.3 isComplete.....................................................98
2.33.4 isResponseReceived.............................................98
2.33.5 merge..........................................................98
2.34 public class LDAPSearchResult....................................99
2.34.1 getEntry.......................................................99
2.35 public class LDAPSearchResultReference...........................99
2.35.1 getReferrals...................................................99
2.36 public class LDAPSearchResults...................................99
2.36.1 getCount.......................................................99
2.36.2 getResponseControls............................................99
2.36.3 hasMore.......................................................100
2.36.4 next..........................................................100
2.37 public interface LDAPSocketFactory..............................100
2.37.1 createSocket..................................................100
2.38 public class LDAPSyntaxSchema...................................100
2.38.1 Constructors..................................................101
2.39 public interface LDAPTLSSocketFactory extends LDAPSocketFactory.101
2.39.1 createSocket..................................................101
2.40 public interface LDAPUnsolicitedNotificationListener............101
2.40.1 messageReceived...............................................102
2.41 public class LDAPUrl............................................102
2.41.1 Constructors..................................................102
2.41.2 decode........................................................103
2.41.3 encode........................................................103
2.41.4 getAttributeArray.............................................104
2.41.5 getAttributes.................................................104
2.41.6 getDN.........................................................104
2.41.7 getExtensions.................................................104
2.41.8 getFilter.....................................................104
2.41.9 getHost.......................................................104
2.41.10 getPort......................................................105
2.41.11 getScope.....................................................105
2.41.12 toString.....................................................105
3. Implementation considerations.....................................105
3.1 Controls.........................................................105
3.2 Referral handling and exceptions.................................106
3.3 Message IDs......................................................107
3.4 Notice of disconnection..........................................108
3.5 Level of compatibility...........................................108
3.6 Dependencies.....................................................108
3.7 Invalid responses................................................108
4. Security considerations...........................................108
5. Acknowledgements..................................................109
6. Bibliography......................................................109
6.1 Normative References.............................................109
6.2 Informative References...........................................110
7. Authors' addresses................................................110
8. Appendix A - Sample Java LDAP programs............................112
8.1 Java LDAP programs using synchronous methods.....................112
8.2 Java LDAP programs using asynchronous methods....................118
9. Appendix B - Revision history.....................................123
9.1 Changes from ldap-java-api-17.txt................................123
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9.2 Changes from ldap-java-api-16.txt................................124
9.3 Changes from ldap-java-api-15.txt................................124
9.4 Changes from ldap-java-api-14.txt................................128
9.5 Changes from ldap-java-api-13.txt................................129
9.6 Changes from ldap-java-api-12.txt................................131
9.7 Changes from ldap-java-api-11.txt................................132
9.8 Changes from ldap-java-api-10.txt................................135
9.9 Changes from ldap-java-api-09.txt................................135
9.10 Changes from ldap-java-api-08.txt...............................136
9.11 Changes from ldap-java-api-07.txt...............................137
9.12 Changes from ldap-java-api-06.txt...............................137
9.13 Changes from ldap-java-api-05.txt...............................138
9.14 Changes from ldap-java-api-04.txt...............................139
9.15 Changes from ldap-java-api-03.txt...............................139
9.16 Changes from ldap-java-api-02.txt...............................140
9.17 Changes from ldap-java-api-01.txt...............................140
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1. Overview
The LDAP [LDAPv3] class library is designed to provide powerful, yet
simple, access to LDAP directory services. It defines both
asynchronous and synchronous interfaces to LDAP to suit a wide
variety of applications.
This document gives a brief overview of the LDAP model, then an
overview of the constituents of the class library. The public class
methods are described in detail, followed by an appendix that
provides some example code demonstrating the use of the
classes, and an appendix listing changes from earlier drafts.
1.1 The LDAP model
LDAP is the Lightweight Directory Access Protocol, described in
[LDAPv3]. It defines a lightweight access mechanism in which clients
send requests to and receive responses from LDAP servers.
The LDAP information model comes from X.500 [X500] and is based on
the entry, which contains information about some object (e.g., a
person). Entries are composed of attributes, which have a type and
one or more values. Each attribute has a syntax that determines what
kinds of values are allowed in the attribute (e.g., ASCII characters,
a jpeg photograph, etc.) and how directory operations act upon these
values.
Entries may be organized in a tree structure, usually based on
political, geographical, and organizational boundaries. Other
structures are possible, including a flat namespace. Each entry is
uniquely named relative to its sibling entries by its relative
distinguished name (RDN) consisting of one or more distinguished
attribute values from the entry. At most one value from each
attribute may be used in the RDN. For example, the entry for the
person Babs Jensen might be named with the "Barbara Jensen" value
from the cn attribute.
A globally unique name for an entry, called a distinguished name or
DN, is constructed by concatenating the sequence of RDNs from the
entry up to the root of the tree. For example, if Babs worked for the
Example company, the DN of her entry might be "cn=Barbara
Jensen,dc=example,dc=com". The DN format used by LDAP is defined in
[DN].
Operations are provided to authenticate, search for and retrieve
information, modify information, and add and delete entries from the
tree. The protocol is also extensible, allowing operations to be
extended by "controls" and new "extended" operations to be defined.
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An LDAP server may return referrals or search references if it cannot
completely service a request (for example if the request specifies a
directory base outside of the tree managed by the server, the server
may return a referral. If a search request spans multiple servers, it
may return one or more search references). The LDAP class library
presents a unified interface for the application to process search
references and referrals, and generically refers to either in the
remainder of this document as simply referrals or referral following.
The API gives the programmer two options to handle referrals: the
application can receive the referrals and explicitly issue new
requests to the referred-to servers, or the application can let the
library automatically follow the referrals. In the latter case
referrals are followed by default with anonymous credentials using
the protocol version and socket factory or TLS [TLS][LDAPTLS] of the
original connection. If default behavior is not desired, the
application can instruct the library to follow referrals with an
authenticated connection by providing a reauthentication object to
provide credentials for a simple bind. For greater flexibility, the
application can provide an object that creates and manages the new
authenticated connection for the API to use when following the
referral.
Before the client encodes and sends a string value to a server, the
string values are converted from the Java 16-bit Unicode format to
UTF-8 format, which many LDAPv3 protocol elements and value
encodings use. The integrity of double-byte and other non-ASCII
character sets is fully preserved. If in the future there are
characters added to Unicode which cannot be represented with Java 16-
bit Unicode strings, implementations of the Java LDAP API SHOULD
adopt whatever conventions are introduced into the Java language to
accommodate the characters.
The next sections give an overview of how the class library is used
and detailed descriptions of the LDAP class methods that implement
all of these functions.
1.2 Package name
The classes of the LDAP class library have the package name
org.ietf.ldap.
1.3 The LDAP classes
The central LDAP class is LDAPConnection. It provides methods to
establish an authenticated or anonymous connection to an LDAP server,
as well as methods to search for, modify, compare, and delete entries
in the directory, and establish integrity and confidentiality
protective services.
The LDAPConnection class also provides access to settings that are
specific to the LDAP session (such as limits on the number of results
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returned or timeout limits). An LDAPConnection object can be cloned,
allowing objects to share a single network connection but use
different settings (using LDAPConstraints or LDAPSearchConstraints).
A synchronous search conducted by an LDAPConnection object returns
results in an LDAPSearchResults object, which can be enumerated to
access the entries found. Each entry (represented by an LDAPEntry
object) provides access to the attributes (represented by
LDAPAttribute objects) returned for that entry. Each attribute can
produce the values found as byte arrays or as Strings.
1.4 The LDAP asynchronous methods
The LDAP protocol provides synchronous as well as asynchronous
directory access methods. All asynchronous methods return queue
objects (either LDAPResponseQueue or LDAPSearchQueue) and also take a
queue object as input. The queue is a message queue associated with
the request, and it is the responsibility of the client to read
messages out of the queue and process them.
Messages retrieved from an LDAPResponseQueue are result objects
derived from LDAPResponse. Messages retrieved from an LDAPSearchQueue
are either search results, search result references, or result
objects derived from LDAPResponse.
An asynchronous search is conducted by an LDAPConnection object and
returns an LDAPSearchQueue object. Search results are obtained from
that object via the getResponse method. A search result is typically
an LDAPSearchResult object, which has a getEntry method. The
LDAPEntry returned by getEntry contains the DN and attributes of a
single search result.
None of the ancillary asynchronous classes are intended to be
instantiated by a client, so they lack public constructors.
1.5 Interfaces
LDAPAuthHandler A programmer desiring to supply
credentials to the default
reauthentication behavior when
automatically following referrals MUST
implement this interface. If
LDAPAuthHandler or LDAPBindHandler are
not used, automatically followed
referrals and search references will use
anonymous authentication. Referrals of
any type other than LDAP URLs [LDAPURL]
MAY be chased on automatic referral
following.
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LDAPBindHandler This interface allows a programmer to
override the default authentication and
reauthentication behavior when
automatically following referrals and
search references. It is used to specify
the authentication mechanism used on
automatic referral following.
LDAPMessageQueue Common interface for LDAPResponseQueue
and LDAPSearchQueue. Represents a queue
of incoming asynchronous messages from
the server.
LDAPReferralHandler Interface that is a shared ancestor to
LDAPBindHandler and LDAPAuthHandler.
LDAPSocketFactory Programmers needing to provide or use
specialized socket connections can
provide an object constructor to
implement them using this interface.
LDAPTLSSocketFactory An extension of LDAPSocketFactory that
supports socket connections with
Transport Layer Security (TLS).
LDAPUnsolicitedNotificationListener Allows a client to be notified
when unsolicited messages arrive from a
server. Unsolicited messages have a
message ID of 0. An implementation of the
Java LDAP API SHOULD NOT generate
messages with an ID of 0.
1.6 Classes
LDAPAttribute Represents the name and values of one
attribute of a directory entry.
LDAPAttributeSchema Represents a definition of an attribute
in a Directory Server.
LDAPAttributeSet A collection of LDAPAttributes.
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LDAPAuthProvider An implementation of LDAPAuthHandler MUST
be able to provide an LDAPAuthProvider at
the time of a referral. The class
encapsulates reauthentication
credentials.
LDAPCompareAttrNames An implementation of Comparator, to
support sorting of search results by one
or more attributes.
LDAPConnection The central point for interactions with
an LDAP directory.
LDAPConstraints Defines options controlling all
operations on the directory.
LDAPControl Encapsulates additional parameters for an
LDAP operation, sent to or received from
a server.
LDAPDITContentRuleSchema Represents a DIT content rule in a
directory schema.
LDAPDITStructureRuleSchema Represents a DIT structure rule in a
directory schema.
LDAPDN A utility class to facilitate composition
and decomposition of distinguished names
(DNs).
LDAPEntry Represents a single entry in a directory.
LDAPExtendedOperation Encapsulates the OID and data associated
with the sending or receiving of an
extended operation.
LDAPExtendedResponse The response returned by an LDAP server
on an extended operation request. It
extends LDAPResponse.
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LDAPMatchingRuleSchema Represents the schematic definition of a
matching rule in a Directory Server.
LDAPMatchingRuleUseSchema Represents a matching rule use in the
directory schema.
LDAPMessage Base class for LDAP request and response
messages. Subclassed by response messages
used in asynchronous operations.
LDAPModification A single add/delete/replace operation to
an LDAPAttribute.
LDAPNameFormSchema Represents a name form in a directory
schema.
LDAPObjectClassSchema Represents the schematic definition of an
object class in a Directory Server.
LDAPResponse Represents a message received from an
LDAP server in response to an
asynchronous request. It extends
LDAPMessage. LDAPExtendedResponse extends
LDAPResponse and is returned also on a
synchronous extended request.
LDAPResponseQueue Mechanism for processing asynchronous
messages received from a server.
LDAPSchema Represents the schema controlling one or
more entries held by a Directory Server.
LDAPSchemaElement Base class for representing LDAP schema
elements.
LDAPSyntaxSchema Represents a syntax definition in a
directory schema.
LDAPSearchConstraints Defines the options controlling search
operations.
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LDAPSearchQueue Mechanism for queuing asynchronous search
results received from a server.
LDAPSearchResult A single search result that is in
response to an asynchronous search
operation. It extends LDAPMessage.
LDAPSearchResultReference A continuation reference from an
asynchronous search operation. It extends
LDAPMessage.
LDAPSearchResults The enumerable results of a search
operation.
LDAPUrl Represents an LDAP Url [LDAPURL].
1.7 Exceptions
LDAPException General exception, which includes an error
message and an LDAP API local error code or
server result code.
LDAPLocalException An exception generated by the API
implementation, not received from the server.
LDAPReferralException Derived from LDAPException and contains a list
of URLs corresponding to a single referral or
search continuation response received on an
LDAP operation.
1.8 LDAP API use
An application generally uses the LDAP API in four steps.
- Construct an LDAPConnection. Initialize an LDAP session with a
directory server. The LDAPConnection.connect() call establishes
a handle to the session, allowing multiple sessions to be open
at once, on different instances of LDAPConnection.
- Authenticate to the LDAP server with LDAPConnection.bind().
- Perform some LDAP operations and obtain some results.
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The synchronous version of LDAPConnection.search() returns an
LDAPSearchResults which can be enumerated to access all entries
found. The asynchronous version of LDAPConnection.search()
returns an LDAPSearchQueue, which is used to read the results
of the search. LDAPConnection.read() returns a single entry.
- Close the connection. The LDAPConnection.disconnect() call
closes the connection.
There are both synchronous and asynchronous versions of the LDAP
protocol operations described in this draft. Synchronous methods do
not return until the operation has completed.
Asynchronous methods take a queue parameter (either LDAPResponseQueue
or LDAPSearchQueue) and return a queue object which is used to
enumerate the responses from the server. A loop is typically used to
read from the queue object, which blocks until there is a response
available, until the operation has completed.
An LDAPResponseQueue may be shared between operations, for
multiplexing the results. In this case, the object returned on one
operation is passed in to one or more other operations, rather than
passing in null.
For the asynchronous methods, exceptions are raised only for
connection errors. LDAP result messages are converted into
LDAPResponse objects which are to be checked by the client for errors
and referrals, whereas the synchronous methods throw an LDAPException
on result codes other than 0, 5, and 6.
To facilitate user feedback during synchronous searches, intermediate
search results can be obtained before the entire search operation is
completed by specifying the number of entries to return at a time.
Errors result in the throwing of an LDAPException, with a specific
result code and context-specific textual information, if available.
Methods that return arrays MUST return an empty array if no values
are present to return, unless otherwise specified.
If null is passed as the value of an LDAPConstraints or
LDAPSearchConstraints parameter to an operation, the default
constraints are used for that operation.
If null is passed as the value of a DN to an operation it is treated
as if it was the empty string.
The API doesn't distinguish between LDAP search continuation
references and LDAP referrals, presenting a unified interface to the
client for handling the two.
Implementations of the API MUST ensure that the LDAPConnection class
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is thread-safe. Other classes and methods MAY be thread-safe and the
implementor MUST indicate which classes and methods are thread-safe.
The following sections describe the LDAP classes in more detail.
2. The Java LDAP classes
2.1 public class LDAPAttribute
implements Cloneable, Serializable, Comparable
The LDAPAttribute class represents the name and values of an
attribute. It is used to specify an attribute to be added to, deleted
from, or modified in a Directory entry. It is also returned on a
search of a Directory.
2.1.1 Constructors
public LDAPAttribute(LDAPAttribute attr)
Constructs an attribute with copies of all values of the input
attribute.
public LDAPAttribute(String attrName)
Constructs an attribute with no values.
public LDAPAttribute(String attrName,
byte[] attrBytes)
Constructs an attribute with a byte-formatted value.
public LDAPAttribute(String attrName,
String attrString)
Constructs an attribute that has a single string value.
public LDAPAttribute(String attrName,
String[] attrStrings)
Constructs an attribute that has an array of string values.
Parameters are:
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attr An attribute to use as template.
attrName Name of the attribute.
attrBytes Value of the attribute as raw bytes.
attrString Value of the attribute as a String.
attrStrings Array of values as Strings.
IllegalArgumentException is thrown if any of the attribute values is
null.
2.1.2 addValue
public void addValue(String attrString)
Adds a string value to the attribute.
public void addValue(byte[] attrBytes)
Adds a byte[]-formatted value to the attribute.
Parameters are:
attrString Value of the attribute as a String.
attrBytes Value of the attribute as raw bytes.
Adding a value which is already present has no effect.
2.1.3 compareTo
public int compareTo(Object obj)
Compares this object with the specified object for order. Ordering is
determined by comparing attribute names (see getName()) using the
compareTo() method of the String class. Returns a negative integer,
zero, or a positive integer as this object is less than, equal to, or
greater than the specified object.
Parameters are:
obj The object to be compared to this object.
2.1.4 getBaseName
public String getBaseName()
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public static String getBaseName(String attrName)
Returns the base name. For example, if the attribute name is cn;lang-
ja;phonetic, this method returns cn.
attrName Name of the attribute to extract the base name
from.
2.1.5 getByteValues
public Enumeration getByteValues()
Returns an enumerator for the values of the attribute in byte[]
format.
2.1.6 getByteValueArray
public byte[][] getByteValueArray()
Returns the values of the attribute as an array of byte[].
2.1.7 getLangSubtype
public String getLangSubtype()
Returns the language subtype, if any. For example, if the attribute
name is cn;lang-ja;phonetic, this method returns the String lang-ja.
2.1.8 getName
public String getName()
Returns the name of the attribute.
2.1.9 getStringValueArray
public String[] getStringValueArray()
Returns the values of the attribute as an array of Strings. This
method should only be called if the attribute values are known to be
strings with values restricted to UTF-8. The returned Strings have
undefined values if the attribute contains values not restricted to
UTF-8.
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2.1.10 getStringValues
public Enumeration getStringValues()
Returns an enumerator for the string values of an attribute. This
method should only be called if the attribute values are known to be
strings with values restricted to UTF-8. The returned Strings have
undefined values if the attribute contains values not restricted to
UTF-8.
2.1.11 getSubtypes
public String[] getSubtypes()
public static String[] getSubtypes(String attrName)
Extracts the subtypes from the specified attribute name. For example,
if the attribute name is cn;lang-ja;phonetic, this method returns an
array containing lang-ja and phonetic.
Parameters are:
attrName Name of the attribute to extract the subtypes
from.
2.1.12 hasSubtype
public boolean hasSubtype(String subtype)
Reports if the attribute name contains the specified subtype. For
example, if you check for the subtype lang-en and the attribute name
is cn;lang-en, this method returns true.
Parameters are:
subtype The single subtype to check for.
2.1.13 hasSubtypes
public boolean hasSubtypes(String[] subtypes)
Reports if the attribute name contains all specified subtypes. For
example, if you check for the subtypes lang-en and phonetic and if
the attribute name is cn;lang-en;phonetic, this method returns true.
If the attribute name is cn;phonetic or cn;lang-en, this method
returns false.
Parameters are:
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subtypes An array of subtypes to check for.
2.1.14 removeValue
public void removeValue(String attrString)
Removes a string value from the attribute.
public void removeValue(byte[] attrBytes)
Removes a byte[]-formatted value from the attribute.
Parameters are:
attrString Value of the attribute as a String.
attrBytes Value of the attribute as raw bytes.
Removing a value which is not present in the attribute has no effect.
2.1.15 size
public int size()
Returns the number of values of the attribute.
2.2 public class LDAPAttributeSchema
extends LDAPSchemaElement
The LDAPAttributeSchema class represents the definition of an
attribute. It is used to query attribute syntax, and to add or delete
an attribute definition in a Directory. See [ATTR] for a description
of attribute representation in LDAP.
2.2.1 Constructors
public LDAPAttributeSchema(String[] names,
String oid,
String description,
String syntaxString,
boolean single,
String superior,
boolean obsolete,
String equality,
String ordering,
String substring,
boolean collective,
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boolean userMod,
int usage)
Constructs an attribute definition for adding to or deleting from a
Directory. [LDAPv3] defines which parameters are optional (may be
null).
public LDAPAttributeSchema(String raw)
Constructs an attribute definition from an encoding
using the AttributeTypeDescription syntax [ATTR].
Parameters are:
names Name(s) of the attribute.
oid Object Identifier of the attribute - in dotted-
decimal format.
description Optional description of the attribute.
syntaxString Object Identifier of the syntax of the attribute
- in dotted-decimal format.
single true if the attribute is to be single-valued.
superior Optional name of the attribute type which this
attribute type derives from; null if there is no
superior attribute type.
obsolete true if this attribute is obsolete.
equality Object Identifier of the equality matching rule
for the attribute - in dotted-decimal format; MAY
be null.
ordering Object Identifier of the ordering matching rule
for the attribute - in dotted-decimal format; MAY
be null.
substring Object Identifier of the substring matching rule
for the attribute - in dotted-decimal format; MAY
be null.
collective true if this is a collective attribute.
userMod true if the attribute is modifiable by users.
usage One of the following:
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USER_APPLICATIONS
DIRECTORY_OPERATION
DISTRIBUTED_OPERATION
DSA_OPERATION
raw An attribute definition encoded using the
AttributeTypeDescription syntax [ATTR].
2.2.2 getEqualityMatchingRule
public String getEqualityMatchingRule ()
Returns the Object Identifier of the equality matching rule in effect
for this attribute, or null if there is none.
2.2.3 getOrderingMatchingRule
public String getOrderingMatchingRule ()
Returns the Object Identifier of the ordering matching rule in effect
for this attribute, or null if there is none.
2.2.4 getSubstringMatchingRule
public String getSubstringMatchingRule ()
Returns the Object Identifier of the substring matching rule in
effect for this attribute, or null if there is none.
2.2.5 getSuperior
public String getSuperior()
Returns the name of the attribute type which this attribute derives
from, or null if there is no superior attribute.
2.2.6 getSyntaxString
public String getSyntaxString()
Returns the Object Identifier of the syntax of the attribute in
dotted-decimal format.
2.2.7 getUsage
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public int getUsage ()
Returns one of the following:
USER_APPLICATIONS
DIRECTORY_OPERATION
DISTRIBUTED_OPERATION
DSA_OPERATION
2.2.8 isCollective
public boolean isCollective ()
Returns true if the attribute is collective.
2.2.9 isSingleValued
public boolean isSingleValued()
Returns true if the attribute is single-valued.
2.2.10 isUserModifiable
public boolean isUserModifiable ()
Returns true if the attribute is modifiable by users.
2.2.11 Constants of LDAPAttributeSchema
The constants correspond to those defined in RFC 2252 [ATTR]:
userApplications, directoryOperation, distributedOperation, and
dSAOperation.
USER_APPLICATIONS (0) An ordinary user attribute
DIRECTORY_OPERATION (1) An operational attribute used for a
directory operation or which holds a
directory specific value
DISTRIBUTED_OPERATION (2) An operational attribute used to hold
server (DSA) information that is shared
among servers holding replicas of the
entry
DSA_OPERATION (3) An operational attribute used to hold
server (DSA) information that is local
to a server
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2.3 public class LDAPAttributeSet
implements Cloneable, Serializable, Set
An LDAPAttributeSet is a collection of LDAPAttributes, as returned in
an entry on a search or read operation, or used to construct an entry
to be added to a directory. If add() or addAll() is called and one or
more of the objects to be added is not an LDAPAttribute,
ClassCastException is thrown (as discussed in the documentation for
java.util.Collection). remove() is called with the LDAPAttribute
object to remove, rather than the name of the attribute to remove.
2.3.1 Constructors
public LDAPAttributeSet()
Constructs a new set of attributes. This set is initially empty.
2.3.2 clone
public Object clone()
Returns a deep copy of this attribute set.
2.3.3 getAttribute
public LDAPAttribute getAttribute(String attrName)
Returns the attribute matching the specified attrName. For example,
getAttribute("cn") returns only the "cn" attribute
getAttribute("cn;lang-en") returns only the "cn;lang-en"
attribute.
In both cases, null is returned if there is no exact match to the
specified attrName.
public LDAPAttribute getAttribute(String attrName, String lang)
Returns a single best-match attribute, or none if no match is
available in the set.
LDAP version 3 allows adding a subtype specification to an attribute
name. "cn;lang-ja", for example, indicates a Japanese language
subtype of the "cn" attribute. "cn;lang-ja-JP-kanji" may be a subtype
of "cn;lang-ja". This feature MAY be used to provide multiple
localizations in the same Directory. For attributes which do not vary
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among localizations, only the base attribute may be stored, whereas
for others there may be varying degrees of specialization.
getAttribute(attrName, lang) returns the subtype that matches
attrName and that best matches lang. If there are subtypes other than
"lang" subtypes included in attrName, e.g. "cn;binary", only
attributes with all of those subtypes are returned. If lang is null
or empty, the method behaves as getAttribute(attrName). If there are
no matching attributes, null is returned. If the results are
ambiguous, the exception UnsupportedOperationException is thrown.
Example:
Assume the entry contains only the following attributes:
cn;lang-en
cn;lang-ja-JP-kanji
sn
getAttribute( "cn" ) returns null.
getAttribute( "sn" ) returns the "sn" attribute.
getAttribute( "cn", "lang-en-us" ) returns the "cn;lang-en"
attribute.
getAttribute( "cn", "lang-en" ) returns the "cn;lang-en"
attribute.
getAttribute( "cn", "lang-ja" ) returns null.
getAttribute( "sn", "lang-en" ) returns the "sn" attribute.
Parameters are:
attrName The name of an attribute to retrieve, with or
without subtype specification(s). "cn",
"cn;phonetic", and cn;binary" are valid attribute
names.
lang A language specification as in [LANG], with
optional subtypes appended using "-" as
separator. "lang-en", "lang-en-us", "lang-ja",
and "lang-ja-JP-kanji" are valid language
specification.
2.3.4 getSubset
public LDAPAttributeSet getSubset(String subtype)
Creates a new attribute set containing only the attributes that have
the specified subtypes.
For example, suppose an attribute set contains the following
attributes:
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cn
cn;lang-ja
sn;lang-ja;phonetic
sn;lang-us
Calling the getSubset method and passing lang-ja as the argument, the
method returns an attribute set containing the following attributes:
cn;lang-ja
sn;lang-ja;phonetic
Parameters are:
subtype - Semi-colon delimited list of subtypes to include. For
example:
"lang-ja" // Only Japanese language
// subtypes
"binary" // Only binary subtypes
"binary;lang-ja" // Only Japanese language
// subtypes which also are binary
2.4 public interface LDAPAuthHandler
extends LDAPReferralHandler
Used to provide credentials for reauthentication on processing a
referral.
2.4.1 getAuthProvider
public LDAPAuthProvider getAuthProvider(String host, int port)
Returns an object which can provide credentials for authenticating to
a server at the provided host name and port number.
Parameters are:
host Contains a host identifier representing the IP
address of a host running an LDAP server. See
2.8.8 for a discussion of valid identifiers.
port Contains the TCP port number to connect to.
2.5 public class LDAPAuthProvider
Represents information used to authenticate the client in cases where
the client follows referrals automatically.
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2.5.1 Constructors
public LDAPAuthProvider( String dn,
byte[] password )
Constructs information that is used by the client for authentication
when following referrals automatically.
Parameters are:
dn Distinguished name to use in authenticating to
the server.
password The UTF-8 or binary representation of the
password to use in authenticating to the server,
represented as a byte array.
2.5.2 getDN
public String getDN()
Returns the distinguished name to be used for reauthentication on
automatic referral following.
2.5.3 getPassword
public byte[] getPassword()
Returns the password to be used for reauthentication on automatic
referral following.
2.6 public interface LDAPBindHandler
extends LDAPReferralHandler
Used to do explicit bind processing on a referral. A client may
specify an instance of this class to be used on a single operation
(through an LDAPConstraints object) or for all operations (through
the LDAPConstraints object associated with the connection).
2.6.1 bind
public LDAPConnection bind(String[] ldapurl, LDAPConnection conn)
throws LDAPReferralException
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This method is called by LDAPConnection when a referral or search
continuation is received, and is responsible for binding to one of
the hosts in the list specified by the ldapurl parameter (which
corresponds exactly to the list of hosts returned in a single
referral or search continuation response). An implementation may
access the host, port, credentials, and other information in the
original LDAPConnection object to decide on an appropriate
authentication mechanism, and/or may interact with a user or external
module. The object implementing LDAPBindHandler creates a new
LDAPConnection object to perform its connect and bind calls. It
returns the new connection when both the connect and bind operations
succeed on one host from the list. The LDAPConnection object referral
following code uses the new LDAPConnection object when it resends the
search request, updated with the new search base and possibly search
filter. An LDAPReferralException is thrown on failure.
Parameters are:
ldapurl List of LDAP server URLs. There is no order
implied by the list.
conn An established connection to an LDAP server.
2.7 public class LDAPCompareAttrNames
implements Comparator
An object of this class defines ordering when sorting search results.
When using this Comparator, LDAPEntry objects are sorted by the
values of the attribute name(s) passed in the constructor, in
ascending or descending order. The object is typically supplied to an
implementation of the collection interfaces such as java.util.TreeSet
which performs the sort.
2.7.1 Constructors
public LDAPCompareAttrNames(String attrName)
Constructs an object that will sort results by a single attribute, in
ascending order.
public LDAPCompareAttrNames(String attrName,
boolean ascendingFlag)
Constructs an object that will sort results by a single attribute, in
either ascending or descending order.
public LDAPCompareAttrNames(String[] attrNames)
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Constructs an object that will sort by one or more attributes, in the
order provided, in ascending order.
public LDAPCompareAttrNames(String[] attrNames,
boolean[] ascendingFlags)
throws LDAPException
Constructs an object that will sort by one or more attributes, in the
order provided, in either ascending or descending order for each
attribute.
Parameters are:
attrName Name of an attribute to sort by.
attrNames Array of names of attributes to sort by.
ascendingFlag true to sort in ascending order, false for
descending order.
ascendingFlags Array of flags, one for each attrName, where each
one is true to sort in ascending order, false for
descending order. An LDAPException is thrown if
the length of ascendingFlags is not equal to the
length of attrNames.
2.7.2 compare
public int compare(Object o1, Object o2)
Compares its two arguments for order. Returns a negative integer,
zero, or a positive integer as the first argument is less than, equal
to, or greater than the second. Throws ClassCastException if o1 or o2
is not an LDAPEntry.
Parameters are:
o1 Target entry for comparison.
o2 Entry to be compared to.
2.7.3 equals
public boolean equals(Object obj)
Indicates whether some other object is "equal to" this Comparator.
Parameters are:
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obj The reference object with which to compare.
2.7.4 getLocale
public Locale getLocale()
Returns the Locale to be used for sorting, if a Locale has been
specified. If null, a basic String.compareTo() is used for collation.
If non-null, a Locale-specific collation is used.
2.7.5 setLocale
public void setLocale(Locale locale)
Sets the Locale to be used for sorting.
Parameters are:
locale The Locale to be used for sorting.
2.8 public class LDAPConnection
implements Cloneable
LDAPConnection is the central class that encapsulates the connection
to a Directory Server through the LDAP protocol. An LDAPConnection
object is not connected on construction, and may only be connected to
one server at one port. Multiple threads may share this single
connection, and an application may have more than one LDAPConnection
object, connected to the same or different Directory Servers.
2.8.1 Constructors
public LDAPConnection()
Constructs a new LDAPConnection object, which represents a connection
to an LDAP server.
Calling the constructor does not actually establish the connection.
The connect or bind methods are used to connect to the LDAP server.
public LDAPConnection(LDAPSocketFactory factory)
Constructs a new LDAPConnection object, which will use the supplied
class factory to construct a socket connection during
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LDAPConnection.connect(). If a security manager exists and the caller
does not have permission to set a factory, SecurityException is
thrown.
Parameters are:
factory An object capable of producing a Socket.
2.8.2 abandon
public void abandon(LDAPSearchResults results)
throws LDAPException
public void abandon(LDAPSearchResults results, LDAPConstraints cons)
throws LDAPException
public void abandon(int id)
throws LDAPException
public void abandon(int id, LDAPConstraints cons)
throws LDAPException
public void abandon(LDAPMessageQueue queue)
throws LDAPException
public void abandon(LDAPMessageQueue queue, LDAPConstraints cons)
throws LDAPException
Either notifies the server to not send additional results associated
with this LDAPSearchResults object, and discards any results already
received, or abandons one or all operations for an asynchronous
response queue.
The application is responsible for not calling this method more than
once with a particular id or LDAPSearchResults. An API implementation
MUST ignore abandon requests for an id or LDAPSearchResults which it
does not recognize. It SHOULD NOT send an additional abandon request
if it can determine that one has already been sent for an id or
LDAPSearchResults.
Parameters are:
results An object returned from a search.
id The ID of the asynchronous operation to abandon.
The ID may be obtained from the response queue
for the operation.
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queue Handler returned from an asynchronous request.
All outstanding operations that are managed by
the queue are abandoned.
cons Constraints specific to the operation.
2.8.3 add
public void add(LDAPEntry entry)
throws LDAPException
public void add(LDAPEntry entry,
LDAPConstraints cons)
throws LDAPException
public LDAPResponseQueue add(LDAPEntry entry,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue add(LDAPEntry entry,
LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Adds an entry to the directory.
The application is responsible for specifying attribute values which
are valid according to the syntax defined for the attributes. It is
also responsible for including all attributes which are required for
the entry.
Parameters are:
entry LDAPEntry object specifying the distinguished
name and attributes of the new entry.
queue Handler for messages returned from a server in
response to this request. If it is null, a queue
object is created internally.
cons Constraints specific to the operation.
2.8.4 addUnsolicitedNotificationListener
public void addUnsolicitedNotificationListener(
LDAPUnsolicitedNotificationListener listener)
Registers an object to be notified on arrival of an unsolicited
message from a server.
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Parameters are:
listener An object to be notified on arrival of an
unsolicited message from a server.
2.8.5 bind
public void bind(int version,
String dn,
byte[] passwd)
throws LDAPException
public void bind(int version,
String dn,
byte[] passwd,
LDAPConstraints cons)
throws LDAPException
public LDAPResponseQueue bind(int version,
String dn,
byte[] passwd,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue bind(int version,
String dn,
byte[] passwd,
LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Authenticates to the LDAP server (that the object is currently
connected to) using the specified name and password, with the
specified LDAP protocol version. This API is specifically designed
for use with LDAPv3. Unless the API provides specific support (as
defined in other documents) for other versions of LDAP, version 3
should be used. If the server does not support the requested protocol
version, an exception is thrown. If the object has been disconnected
from an LDAP server, this method attempts to reconnect to the server.
If the object had already authenticated, the old authentication is
discarded.
Parameters are:
version LDAP protocol version requested: currently 3.
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dn If non-null and non-empty, specifies that the
connection and all operations through it MUST be
authenticated with dn as the distinguished name.
passwd The UTF-8 or binary representation of the
password to use in authenticating to the server,
represented as a byte array. If non-null and non-
empty, specifies that the connection and all
operations through it MUST be authenticated with
dn as the distinguished name and passwd as
password. If dn and/or password is null or empty,
the connection is anonymous on completion of the
simple bind request.
queue Handler for messages returned from a server in
response to this request. If it is null, a queue
object is created internally.
cons Constraints specific to the operation.
public void bind(String dn,
String authzId,
Map props,
javax.security.auth.callback.CallbackHandler cbh)
throws LDAPException
public void bind(String dn,
String authzId,
Map props,
javax.security.auth.callback.CallbackHandler cbh,
LDAPConstraints cons)
throws LDAPException
public void bind(String dn,
String authzId,
String[] mechanisms,
Map props,
javax.security.auth.callback.CallbackHandler cbh)
throws LDAPException
public void bind(String dn,
String authzId,
String[] mechanisms,
Map props,
javax.security.auth.callback.CallbackHandler cbh,
LDAPConstraints cons)
throws LDAPException
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Authenticates to the LDAP server (that the object is currently
connected to) using the specified name and one of a specified set of
mechanisms. If none of the requested SASL [SASL][AUTH][JAVASASL]
mechanisms is available, an exception is thrown. If the object has
been disconnected from an LDAP server, this method attempts to
reconnect to the server. If the object had already authenticated, the
old authentication is discarded. A SASL bind call may involve
multiple protocol requests. An attempt to invoke an operation other
than bind between bind requests in a multi-stage bind results in an
LDAPException with the result code SASL_BIND_IN_PROGRESS.
Parameters are:
dn The distinguished name to use as the bind name.
It may be null or empty. This value is not used
as either a SASL authentication nor authorization
identity. The application provides these
identities through the callback handler.
authzId If not null and not empty, an LDAP authzID [AUTH]
to be passed to the SASL layer. If null or empty,
the authzId will be treated as an empty string
and processed as per RFC 2222 [SASL].
mechanisms An array of IANA-registered SASL mechanisms which
the client is willing to use for authentication.
props Optional qualifiers for the authentication
session.
cbh A class which may be called by the SASL client
implementation to obtain additional information
required, such as additional credentials.
cons Constraints specific to the operation.
2.8.6 clone
public Object clone()
Returns a copy of the object with a private context, but sharing the
network connection if there is one. The network connection remains
open until all clones have disconnected or gone out of scope. Any
connection opened after cloning is private to the object making the
connection.
The clone can freely modify options and search constraints, and issue
requests, without affecting the source object or other clones. If the
clone disconnects or reconnects, it is completely dissociated from
the source object and other clones. Reauthenticating in a clone,
however, is a global operation which will affect the source object
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and all associated clones, because it applies to the single shared
physical connection. Any request by an associated object after one
has reauthenticated will carry the new identity.
Methods that are global in nature and which affect the source object
are:
addUnsolicitedNotificationListener
bind
connect
disconnect
finalize
removeUnsolicitedNotificationListener
startTLS
The following methods return data that is from the source object and
is the same for all clones of LDAPConnection:
getAuthenticationDN
getAuthenticationMethod
getHost
getPort
getProtocolVersion
getSaslBindCallBackHandler
getSaslBindProperties
getSocketFactory
isBound
isConnected
isTLS
The following methods manipulate or retrieve data that is unique to
each clone of LDAPConnection:
getConstraints
getResponseControls
getSearchConstraints
setConstraints
2.8.7 compare
public boolean compare(String dn,
LDAPAttribute attr)
throws LDAPException
public boolean compare(String dn,
LDAPAttribute attr,
LDAPConstraints cons)
throws LDAPException
public LDAPResponseQueue compare(String dn,
LDAPAttribute attr,
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LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue compare(String dn,
LDAPAttribute attr,
LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Checks to see if an entry contains an attribute with a specified
value. The synchronous methods return a value of true if the entry
has the value, and false if the entry does not have the value or the
attribute.
Parameters are:
dn The distinguished name of the entry to use in the
comparison.
attr The attribute to compare against the entry. The
method checks to see if the entry has an
attribute with the same name and value as this
attribute.
queue Handler for messages returned from a server in
response to this request. If it is null, a queue
object is created internally.
cons Constraints specific to the operation.
2.8.8 connect
public void connect(String host,
int port)
throws LDAPException
Connects to the specified host and port. If this LDAPConnection
object represents an open connection, the connection is closed first
before the new connection is opened. At this point there is no
authentication, and any operations will be conducted as an anonymous
client.
Parameters are:
host Contains a host identifier consisting of a
hostname, an IPv4 dotted string, or an IPv6
reference [IPv6] representing the IP address of a
host running an LDAP server to connect to.
Alternatively, it may contain a list of host
identifiers, space-delimited. Each host
identifier may include a trailing colon and port
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number. IPv6 identifiers with a port number are
represented with square brackets around the IP
address part as per [IPv6URL]. In the case where
more than one host identifier is specified, each
host identifier in turn will be contacted until a
connection can be established. Examples:
"directory.example.com"
"192.0.2.0"
"[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:4389"
"directory.example.com:1050 people.catalog.com 192.0.2.0"
port Port number for LDAP server (use
LDAPConnection.DEFAULT_PORT for default port).
"port" is ignored for any host identifier which
includes a colon and port number.
2.8.9 delete
public void delete(String dn) throws LDAPException
public void delete(String dn,
LDAPConstraints cons)
throws LDAPException
public LDAPResponseQueue delete(String dn,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue delete(String dn,
LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Deletes the entry for the specified DN from the directory.
Parameters are:
dn Distinguished name of the entry to delete.
queue Handler for messages returned from a server in
response to this request. If it is null, a queue
object is created internally.
cons Constraints specific to the operation.
2.8.10 disconnect
public void disconnect() throws LDAPException
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public void disconnect(LDAPConstraints cons) throws LDAPException
Disassociates the LDAPConnection object from clones and any physical
connection to an LDAP server. If the object is the last clone sharing
a physical connection, the method closes the connection with the LDAP
server. The API implementation sends an Unbind request to the server
with any controls specified by the LDAPConstraints object before
closing the connection. Before the object can perform LDAP operations
again, it MUST reconnect to the server by calling either connect or
bind (bind will attempt to reconnect).
Parameters are:
cons Constraints to be sent with the unbind request.
2.8.11 extendedOperation
public LDAPExtendedResponse extendedOperation(
LDAPExtendedOperation op )
throws LDAPException
public LDAPExtendedResponse extendedOperation(
LDAPExtendedOperation op,
LDAPConstraints cons )
throws LDAPException
public LDAPResponseQueue extendedOperation(
LDAPExtendedOperation op,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue extendedOperation(
LDAPExtendedOperation op,
LDAPConstraints cons,
LDAPResponseQueue queue)
throws LDAPException
Provides a means to access extended, non-mandatory operations offered
by a particular LDAP version 3 compliant server.
Returns an operation-specific object, containing an OID and an Octet
String or BER-encoded value(s).
Parameters are:
op Object which contains an object identifier of the
extended operation, which SHOULD be one
recognized by the particular server this client
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is connected to, and operation-specific sequence
of Octet String or BER-encoded value(s).
cons Constraints specific to the operation.
2.8.12 fetchSchema
public LDAPSchema fetchSchema(String schemaDN)
throws LDAPException
Retrieves the schema associated with a particular schema DN in the
Directory server. The schema DN for a particular entry is obtained by
calling the getSchemaDN method of LDAPConnection.
An LDAPException is thrown if the schema cannot be retrieved.
Parameters are:
schemaDN The schema DN used to fetch the schema.
2.8.13 finalize
protected void finalize() throws LDAPException
Closes the connection if open and releases any other resources held
by the object.
2.8.14 getAuthenticationDN
public String getAuthenticationDN()
Returns the distinguished name (DN) used as the bind name during the
last successful bind operation. null is returned if no authentication
has been performed or if the bind resulted in an anonymous
connection.
2.8.15 getAuthenticationMethod
public String getAuthenticationMethod()
Returns the method used to authenticate the connection. The return
value is one of the following:
"none" The current authentication state has not been
established by use of the bind operation. This
is the initial state upon connect() as well as if
the last bind failed or if the last successful
bind was anonymous.
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"simple" Simple bind has completed successfully
(anonymous, unauthenticated, or authenticated)
"sasl" The current authentication state was established
by the successful completion of a SASL bind
2.8.16 getConstraints
public LDAPConstraints getConstraints()
Returns a copy of the set of constraints associated with this
connection. These constraints apply to all operations performed
through this connection (unless a different set of constraints is
specified when calling an operation method). If no constraints have
been assigned with setConstraints, a copy of the default constraints
is returned.
2.8.17 getHost
public String getHost()
Returns the host name of the LDAP server to which the object is or
was last connected, in the format originally specified. If no
connection attempt has been made, null is returned.
2.8.18 getPort
public int getPort()
Returns the port number of the LDAP server to which the object is or
was last connected. If no connection attempt has been made,
LDAPConnection.DEFAULT_PORT is returned.
2.8.19 getProperty
public Object getProperty(String name)
Gets a property of a connection object. The properties are defined by
the API implementation and not modifiable by a client of the API.
Parameters are:
name Name of the property to be returned.
The following read-only properties are available
for any given connection:
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LDAP_PROPERTY_SDK ("version.sdk") The version of
this SDK, as a
String data type.
LDAP_PROPERTY_PROTOCOL ("version.protocol") The
highest supported
version of the LDAP
protocol, as an
Integer data type.
LDAP_PROPERTY_SECURITY ("security.types") A
comma-separated
list of the types
of authentication
supported, as a
String. See 2.8.15.
Other properties may be available in particular implementations
of the class.
A deep copy of the property is provided where applicable; a
client does not need to clone the object received.
null is returned if the requested property is not available.
2.8.20 getProtocolVersion
public int getProtocolVersion ()
Returns the protocol version that the connection is bound to (which
currently is 3). If the connection is not bound, it returns 3.
2.8.21 getResponseControls
public LDAPControl[] getResponseControls()
Returns the latest Server Controls returned by a Directory Server
with a response to an LDAP request from the current thread. For
asynchronous requests, the response controls are available in
LDAPMessage instead.
2.8.22 getSaslBindCallbackHandler
public javax.security.auth.callback.CallbackHandler
getSaslBindCallbackHandler()
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Returns the callback handler, if any, specified on binding with a
SASL mechanism.
2.8.23 getSaslBindProperties
public Map getSaslBindProperties()
Returns the properties, if any, specified on binding with a SASL
mechanism.
2.8.24 getSchemaDN
public String getSchemaDN() throws LDAPException
Retrieves the DN for the schema at the root DSE of the Directory
Server.
Throws LDAPException if the schema DN cannot be retrieved, or if the
subschemaSubentry attribute associated with the root DSE contains
multiple values.
public String getSchemaDN(String dn) throws LDAPException
Retrieves the DN of the schema associated with a particular entry
in the directory.
Throws LDAPException if the schema DN cannot be retrieved, or if a
null or empty value is passed as dn and the subschemaSubentry
attribute associated with the root DSE contains multiple values.
Parameters are:
dn Distinguished name of the entry for which the
schema DN is to be retrieved.
2.8.25 getSearchConstraints
public LDAPSearchConstraints getSearchConstraints()
Returns a copy of the set of search constraints associated with this
connection. These constraints apply to search operations performed
through this connection (unless a different set of constraints is
specified when calling the search operation method). The search
constraints include the base constraints returned by
getConstraints(). If no constraints have been assigned with
setConstraints, a copy of the default constraints is returned.
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2.8.26 getSocketFactory
public LDAPSocketFactory getSocketFactory()
Returns the LDAPSocketFactory used to establish a connection to a
server.
2.8.27 isBound
public boolean isBound()
Indicates whether the object has authenticated to the connected LDAP
server (other than anonymously with simple bind). It returns false
initially, false upon a bind request, and true after successful
completion of the last outstanding non-anonymous simple bind.
2.8.28 isConnected
public boolean isConnected()
Indicates if the connection represented by this object is open at
this time.
2.8.29 isTLS
public boolean isTLS ()
Indicates the session is currently protected by TLS. The
method provides no indication of the level of protection provided.
2.8.30 modify
public void modify(String dn,
LDAPModification mod)
throws LDAPException
public void modify(String dn,
LDAPModification mod,
LDAPConstraints cons)
throws LDAPException
public LDAPResponseQueue modify(String dn,
LDAPModification mod,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue modify(String dn,
LDAPModification mod,
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LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Makes a single change to an existing entry in the directory (for
example, changes the value of an attribute, adds a new attribute
value, or removes an existing attribute value).
The LDAPModification object specifies both the change to be made and
the LDAPAttribute value to be changed.
The application is responsible for specifying attribute values which
are valid according to the syntax defined for the attributes.
public void modify(String dn,
LDAPModification[] mods)
throws LDAPException
public void modify(String dn,
LDAPModification[] mods,
LDAPConstraints cons)
throws LDAPException
public LDAPResponseQueue modify(String dn,
LDAPModification[] mods,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue modify(String dn,
LDAPModification[] mods,
LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Makes a set of changes to an existing entry in the directory (for
example, changes attribute values, adds new attribute values, or
removes existing attribute values).
The application is responsible for specifying attribute values which
are valid according to the syntax defined for the attributes.
Parameters are:
dn Distinguished name of the entry to modify.
mod A single change to be made to the entry.
mods A set of changes to be made to the entry.
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queue Handler for messages returned from a server in
response to this request. If it is null, a queue
object is created internally.
cons Constraints specific to the operation.
2.8.31 read
public LDAPEntry read(String dn) throws LDAPException
Reads the entry for the specified distiguished name (DN) and
retrieves all attributes for the entry.
public LDAPEntry read(String dn,
LDAPSearchConstraints cons)
throws LDAPException
Reads the entry for the specified distiguished name (DN) and
retrieves all attributes for the entry.
public LDAPEntry read(String dn,
String[] attrs)
throws LDAPException
public LDAPEntry read(String dn,
String[] attrs,
LDAPSearchConstraints cons)
throws LDAPException
Reads the entry for the specified distinguished name (DN) and
retrieves only the specified attributes from the entry.
public static LDAPEntry read(LDAPUrl toGet) throws LDAPException
public static LDAPEntry read(LDAPUrl toGet,
LDAPSearchConstraints cons)
throws LDAPException
Reads the entry specified by the LDAP URL.
When this method is called, a new connection is created
automatically, using the host and port specified in the URL. After
finding the entry, the method closes the connection (in other words,
it disconnects from the LDAP server).
If the URL specifies a scope other than base,
IllegalArgumentException is thrown. Any critical extensions specified
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in the URL must be processed or else an LDAPException is thrown with
the result code UNSUPPORTED_OPERATION.
The method returns the entry specified by the base DN.
Parameters are:
dn Distinguished name of the entry to retrieve.
cons Constraints specific to the operation.
attrs Names of attributes to retrieve.
toGet LDAP URL specifying the entry to read.
If the server does not return exactly one entry, an LDAPException is
thrown with a result code of AMBIGIOUS_RESPONSE.
Note: read is simply a helper method and uses the ldap search
operation to achieve the results. As such, there is no asynchronous
interface.
2.8.32 removeUnsolicitedNotificationListener
public void removeUnsolicitedNotificationListener(
LDAPUnsolicitedNotificationListener listener)
Deregisters an object so that it will no longer be notified on
arrival of an unsolicited message from a server. If the object is
null or was not previously registered for unsolicited notifications,
the method does nothing.
Parameters are:
listener An object to no longer be notified on arrival of
an unsolicited message from a server.
2.8.33 rename
public void rename(String dn,
String newRdn,
boolean deleteOldRdn)
throws LDAPException
public void rename(String dn,
String newRdn,
boolean deleteOldRdn,
LDAPConstraints cons)
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throws LDAPException
public LDAPResponseQueue rename(String dn,
String newRdn,
boolean deleteOldRdn,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue rename(String dn,
String newRdn,
boolean deleteOldRdn,
LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Renames an existing entry in the directory.
public void rename(String dn,
String newRdn,
String newParentdn,
boolean deleteOldRdn)
throws LDAPException
public void rename(String dn,
String newRdn,
String newParentdn,
boolean deleteOldRdn,
LDAPConstraints cons)
throws LDAPException
public LDAPResponseQueue rename(String dn,
String newRdn,
String newParentdn,
boolean deleteOldRdn,
LDAPResponseQueue queue)
throws LDAPException
public LDAPResponseQueue rename(String dn,
String newRdn,
String newParentdn,
boolean deleteOldRdn,
LDAPResponseQueue queue,
LDAPConstraints cons)
throws LDAPException
Renames an existing entry or subtree in the directory, possibly
repositioning it in the directory tree.
Parameters are:
dn Current distinguished name of the entry.
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newRdn New relative distinguished name for the entry.
newParentdn Distinguished name of the existing entry which is
to be the new parent of the entry. If newParentdn
is null, the request is treated as if the
signature without newParentdn is called.
deleteOldRdn If true, the old name is not retained as an
attribute value.
queue Handler for messages returned from a server in
response to this request. If it is null, a queue
object is created internally.
cons Constraints specific to the operation.
2.8.34 search
public LDAPSearchResults search(String base,
int scope,
String filter,
String[] attrs,
boolean typesOnly)
throws LDAPException
public LDAPSearchQueue search(String base,
int scope,
String filter,
String[] attrs,
boolean typesOnly,
LDAPSearchQueue queue)
throws LDAPException
Performs the search specified by the parameters.
public LDAPSearchResults search(String base,
int scope,
String filter,
String[] attrs,
boolean typesOnly,
LDAPSearchConstraints cons)
throws LDAPException
public LDAPSearchQueue search(String base,
int scope,
String filter,
String[] attrs,
boolean typesOnly,
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LDAPSearchQueue queue,
LDAPSearchConstraints cons)
throws LDAPException
Performs the search specified by the parameters, also allowing
specification of constraints for the search (such as the maximum
number of entries to find or the maximum time to wait for search
results).
As part of the search constraints, the function allows specifying
whether or not the results are to be delivered all at once or in
smaller batches. If specified that the results are to be delivered in
smaller batches, each iteration blocks only until the next batch of
results is returned.
public static LDAPSearchResults search(LDAPUrl toGet)
throws LDAPException
Performs the search specified by the LDAP URL, returning an
enumerable LDAPSearchResults object.
public static LDAPSearchResults search(LDAPUrl toGet,
LDAPSearchConstraints cons)
throws LDAPException
Perfoms the search specified by the LDAP URL. This method also allows
specifying constraints for the search (such as the maximum number of
entries to find or the maximum time to wait for search results).
When this method is called, a new connection is created
automatically, using the host and port specified in the URL. After
all search results have been received from the server, the method
closes the connection (in other words, it disconnects from the LDAP
server).
As part of the search constraints, a choice can be made as to whether
to have the results delivered all at once or in smaller batches. If
the results are to be delivered in smaller batches, each iteration
blocks only until the next batch of results is returned.
Parameters are:
base The base distinguished name to search from.
scope The scope of the entries to search. The following
are the valid options:
SCOPE_BASE Search only the base DN
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SCOPE_ONE Search only entries directly under the base
DN
SCOPE_SUB Search the base DN and all entries within
its subtree
filter Search filter specifying the search criteria, as
defined in [FILTER]. The value null can be passed
to indicate that the filter "(objectclass=*)"
which matches all entries is to be used.
attrs Names of attributes to retrieve.
typesOnly If true, returns the names but not the values of
the attributes found. If false, returns the
names and values for attributes found.
toGet LDAP URL specifying the entry to read.
queue Handler for messages returned from a server in
response to this request. If it is null, a queue
object is created internally.
cons Constraints specific to the search.
Note: RFC 2251 [LDAPv3] indicates that extendedResponses on search
requests may be defined in future versions of the LDAP protocol.
There is no support for extendedResponses on search requests in this
version of the Java LDAP API.
2.8.35 setConstraints
public void setConstraints(LDAPConstraints cons)
Sets the constraints that apply to all operations performed through
this connection (unless a different set of constraints is specified
when calling an operation method). An LDAPSearchConstraints object
which is passed to this method will override all constraints, while
an LDAPConstraints object will only affect the base constraints.
Parameters are:
cons Non-null constraints object.
2.8.36 setSocketFactory
public static void setSocketFactory(LDAPSocketFactory factory)
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Establishes the default LDAPSocketFactory used when LDAPConnection
objects are constructed unless an LDAPSocketFactory is specified in
the LDAPConnection object constructor.
This method sets the default LDAPSocketFactory used for all
subsequent LDAPConnection objects constructed. If called after
LDAPConnection objects are created, those already created are not
affected even if they disconnect and establish a new connection. It
affects LDAPConnection objects only as they are constructed.
If a security manager exists and the caller does not have permission
to set a factory, SecurityException is thrown.
To use the setSocketFactory method, the caller needs the following
permission:
java.lang.RuntimePermission("setFactory");
Parameters are:
factory A factory object which can construct socket
connections for an LDAPConnection. If null, the
default factory of the API implementation is
selected.
2.8.37 startTLS
public void startTLS()
throws LDAPException
Begin using the Transport Layer Security (TLS) protocol for session
privacy [TLS][LDAPTLS]. If the socket factory of the connection is
not capable of initiating a TLS session, an LDAPException is thrown
with the error code TLS_NOT_SUPPORTED. If the server does not support
the transition to a TLS session, an LDAPException is thrown with the
error code returned by the server. If there are outstanding LDAP
operations on the connection, an LDAPException is thrown.
2.8.38 stopTLS
public void stopTLS ()
throws LDAPException
Stop using the Transport Layer Security (TLS) protocol for session
privacy [LDAPTLS]. If the server does not support the termination of
a TLS session, an LDAPException is thrown with the error code
returned by the server. If there are outstanding LDAP operations on
the connection, an LDAPException is thrown.
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2.8.39 Constants of LDAPConnection
ALL_USER_ATTRS ("*") Used with search in an attribute list to
indicate that all attributes (other than
operational attributes) are to be returned.
NO_ATTRS ("1.1") Used with search instead of an attribute list
to indicate that no attributes are to be
returned.
DEFAULT_PORT (389) Used on connect to indicate the default LDAP
port number.
SCOPE_BASE (0) Used with search to indicate that only the entry
corresponding to the base DN is to be returned.
SCOPE_ONE (1) Used with search to indicate that only immediate
subordinates of the entry corresponding to the
base DN, and not the entry corresponding to the
base DN, are to be returned.
SCOPE_SUB (2) Used with search to indicate that the entry
corresponding to the base DN as well as all
direct and indirect subordinate entries are to be
returned.
2.9 public class LDAPConstraints
implements Cloneable, Serializable
A set of options to control any operation. There is always an
LDAPConstraints associated with an LDAPConnection object; its
values can be changed with LDAPConnection.setConstraints, or
overridden by passing an LDAPConstraints object to an operation.
2.9.1 Constructors
public LDAPConstraints()
Constructs an LDAPConstraints object that specifies the default
set of constraints.
public LDAPConstraints(int msLimit,
boolean doReferrals,
LDAPReferralHandler handler,
int hop_limit)
Constructs a new LDAPConstraints object and allows specifying
the operational constraints in that object.
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Parameters are:
msLimit Maximum time in milliseconds to wait for results
(0 by default, which means that there is no
maximum time limit). This is an interface-imposed
limit.
doReferrals Specify true to follow referrals automatically,
or false to throw an LDAPReferralException error
if the server sends back a referral (false by
default). It is ignored for asynchronous
operations.
handler Custom authentication processor, called when the
LDAPConnection needs to authenticate, typically
on following a referral. null MAY be specified to
indicate default authentication processing. The
object may implement either the LDAPBindHandler
or the LDAPAuthHandler interface. It is ignored
for asynchronous operations.
hop_limit Maximum number of referrals to follow in a
sequence when attempting to resolve a request,
when doing automatic referral following. It is
ignored for asynchronous operations.
2.9.2 getControls
public LDAPControl[] getControls()
Returns controls to be sent to the server.
2.9.3 getHopLimit
public int getHopLimit()
Returns the maximum number of hops to follow during automatic
referral following.
2.9.4 getProperty
public Object getProperty(String name)
Gets a property of a constraints object which has been assigned with
setProperty. null is returned if the property is not defined.
Parameters are:
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name Name of the property to be returned.
2.9.5 getReferralFollowing
public boolean getReferralFollowing()
Specifies whether or not referrals are followed automatically.
Returns true if referrals are to be followed automatically, or false
if referrals throw an LDAPReferralException.
2.9.6 getTimeLimit
public int getTimeLimit()
Returns the maximum number of milliseconds the client waits for any
operation under these constraints. If 0, there is no maximum time
limit on waiting for the operation results. The actual granularity of
the timeout depends on the implementation.
2.9.7 setControls
public void setControls( LDAPControl control )
public void setControls( LDAPControl[] controls )
Sets controls to be sent to the server.
Parameters are:
control A single control to be sent to the server.
controls An array of controls to be sent to the server.
2.9.8 setHopLimit
public void setHopLimit(int hop_limit)
Sets the maximum number of hops to follow in sequence during
automatic referral following. The default is 10. 0 means no limit.
Parameters are:
hop_limit Maximum number of chained referrals to follow
automatically.
2.9.9 setProperty
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public void setProperty(String name, Object value)
Sets a property of the constraints object.
No property names have been defined at this time, but the mechanism
is in place in order to support revisional as well as dynamic and
proprietary extensions to operation modifiers. Throws
IllegalArgumentException if the property name is not defined in the
API.
Parameters are:
name Name of the property to set.
value Value to assign to the property.
2.9.10 setReferralFollowing
public void setReferralFollowing(boolean doReferrals)
Specifies whether nor not referrals are followed automatically, or if
referrals throw an LDAPReferralException. The default is false.
Parameters are:
doReferrals True to follow referrals automatically.
2.9.11 setReferralHandler
public void setReferralHandler (LDAPReferralHandler handler)
Specifies the object that will process authentication requests. The
default is null.
Parameters are:
handler An object that implements LDAPBindHandler or
LDAPAuthHandler.
2.9.12 setTimeLimit
public void setTimeLimit(int msLimit)
Sets the maximum number of milliseconds to wait for any operation
under these constraints. If 0, there is no maximum time limit
on waiting for the operation results. The actual granularity of the
time limit depends on the implementation.
Parameters are:
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msLimit Maximum milliseconds to wait.
2.10 public class LDAPControl
implements Serializable, Cloneable
An LDAPControl encapsulates optional additional parameters or
constraints to be applied to LDAP operations. When included with
LDAPConstraints or LDAPSearchConstraints on an LDAPConnection or on a
specific operation request, it is sent to the server along with
operation requests.
2.10.1 Constructors
public LDAPControl(String oid,
boolean critical,
byte[] value)
Parameters are:
oid The type of the Control, as an OID.
critical If true, the LDAP operation will fail with
UNAVAILABLE_CRITICAL_EXTENSION if the server does
not support this Control.
value Control-specific data. The API implementation
does not interpret or convert the value.
2.10.2 clone
public Object clone()
Returns a deep copy of the object.
2.10.3 getID
public String getID()
Returns the object identifier of the control.
2.10.4 getValue
public byte[] getValue()
Returns the control-specific data of the object.
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2.10.5 isCritical
public boolean isCritical()
Returns true if the control must be supported for an associated
operation to be executed.
2.10.6 register
public static void register(String oid, Class controlClass)
Registers a class to be instantiated on receipt of a control with the
given oid. Any previous registration for the oid is overridden. The
controlClass MUST be an extension of LDAPControl.
Parameters are:
oid The Object Identifier of the Control.
controlClass A class which can instantiate an LDAPControl.
2.10.7 setValue
protected void setValue(byte[] value)
Sets the control-specific data of the object. This method is for use
by extensions of LDAPControl.
Parameters are:
value The value to be assigned to the Control.
2.11 public class LDAPDITContentRuleSchema
extends LDAPSchemaElement
The LDAPDITContentRuleSchema class represents the definition of a DIT
Content Rule. It is used to discover or modify additional auxiliary
classes, mandatory and optional attributes, and restricted attributes
in effect for an object class. See [ATTR] for a description of DIT
content rule representation in LDAP.
2.11.1 Constructors
public LDAPDITContentRuleSchema(String[] names,
String oid,
String description,
boolean obsolete,
String[] auxiliary,
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String[] required,
String[] optional,
String[] precluded)
Constructs a DIT content rule for adding to or deleting from the
schema. [LDAPv3] defines which parameters are optional (may be null).
public LDAPDITContentRuleSchema(String raw)
Constructs a DIT content rule from an encoding using the
ditContentRules syntax [ATTR].
Parameters are:
names Name(s) of the content rule.
oid Object Identifier of the content rule - in
dotted-decimal format.
description Optional description of the content rule.
obsolete true if the content rule is obsolete.
auxiliary A list of auxiliary object classes allowed for
an entry to which this content rule applies.
These may either be specified by name or
numeric oid.
required A list of user attribute types that an entry
to which this content rule applies must
contain in addition to its normal set of
mandatory attributes. These may either be
specified by name or numeric oid.
optional A list of user attribute types that an entry
to which this content rule applies may contain
in addition to its normal set of optional
attributes. These may either be specified by
name or numeric oid.
precluded A list, consisting of a subset of the optional
user attribute types of the structural and
auxiliary object classes which are precluded
from an entry to which this content rule
applies. These may either be specified by name
or numeric oid.
raw A DIT content rule encoded using the
ditContentRules syntax [ATTR].
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2.11.2 getAuxiliaryClasses
public String[] getAuxiliaryClasses()
Returns the list of allowed auxiliary classes.
2.11.3 getOptionalAttributes
public String[] getOptionalAttributes()
Returns the list of additional optional attributes for an entry
controlled by this content rule.
2.11.4 getPrecludedAttributes
public String[] getPrecludedAttributes()
Returns the list of precluded attributes for an entry controlled by
this content rule.
2.11.5 getRequiredAttributes
public String[] getRequiredAttributes()
Returns the list of additional required attributes for an entry
controlled by this content rule.
2.12 public class LDAPDITStructureRuleSchema
extends LDAPSchemaElement
The LDAPDITStructureRuleSchema class represents the definition of a
DIT Structure Rule. It is used to discover or modify which object
classes a particular object class may be subordinate to in the DIT.
See [ATTR] for a description of DIT structure rule representation in
LDAP.
2.12.1 Constructors
public LDAPDITStructureRuleSchema(String[] names,
int ruleID,
String description,
boolean obsolete,
String nameForm,
String[] superiorIDs)
Constructs a DIT structure rule for adding to or deleting from the
schema. [LDAPv3] defines which parameters are optional (may be null).
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public LDAPDITStructureRuleSchema(String raw)
Constructs a DIT structure rule from an encoding
using the dITStructureRules syntax [ATTR].
Parameters are:
names Name(s) of the structure rule.
ruleID Unique identifier of the structure rule. NOTE:
this is an integer, not a dotted-decimal
identifier. Structure rules aren't identified
by OID.
description Optional description of the structure rule.
obsolete true if the structure rule is obsolete.
nameForm Either the object identifier in dotted-decimal
form or the name of a name form. This is used
to indirectly refer to the object class that
this structure rule applies to.
superiorIDs List of superior structure rules - specified
by their integer ID. The object class
specified by this structure rule (via the
nameForm parameter) may only be subordinate in
the DIT to object classes of those represented
by the structure rules here; MAY be null.
raw A DIT structure rule encoded using the
dITStructureRules syntax [ATTR].
2.12.2 getNameForm
public String getNameForm()
Returns the NameForm that this structure rule controls. You can get
the actual object class that this structure rule controls by calling
getNameForm(ditStructRule.getNameForm()).getObjectClass().
2.12.3 getRuleID
public int getRuleID()
Returns the rule ID for this structure rule. Note that this returns
an integer rather than a dotted decimal OID. Objects of this class do
not have an OID, thus getID will return null.
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2.12.4 getSuperiors
public String[] getSuperiors()
Returns a list of all structure rules that are superior to this
structure rule. To resolve to an object class, you need to first
resolve the superior id to another structure rule, then call
getNameForm().getObjectClass() on that structure rule.
2.13 public class LDAPDN
A utility class used to manipulate a distinguished name (DN).
2.13.1 equals
public static boolean equals(String dn1, String dn2)
Compares the two strings per the distinguishedNameMatch matching rule
[ATTR]. An API implementation MUST use caseIgnoreMatch equality
matching for the attributes listed in section 2 of [ATTR].
IllegalArgumentException is thrown if one or both DNs are invalid.
UnsupportedOperationException is thrown if the API implementation is
not able to determine if the DNs match or not.
Parameters are:
dn1 String form of first DN to compare.
dn2 String form of second DN to compare.
2.13.2 escapeRDN
public static String escapeRDN(String rdn)
Returns the RDN after escaping the characters requiring escaping
[DN]. For example, for the rdn "cn=Example, Inc", "cn=Example\, Inc"
is returned.
Parameters are:
rdn The RDN to escape.
2.13.3 explodeDN
public static String[] explodeDN(String dn,
boolean noTypes)
Returns the individual components of a distinguished name (DN).
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Parameters are:
dn Distinguished name, e.g. "cn=Babs
Jensen,ou=Accounting,dc=example,dc=com"
noTypes If true, returns only the values of the
components, and not the names, e.g. "Babs
Jensen", "Accounting", "Example", "com" - instead
of "cn=Babs Jensen","ou=Accounting","dc=Example",
and "dc=com".
2.13.4 explodeRDN
public static String[] explodeRDN(String rdn,
boolean noTypes)
Returns the individual components of a relative distinguished name
(RDN).
Parameters are:
rdn Relative distinguished name, i.e. the left-most
component of a distinguished name.
noTypes If true, returns only the values of the
components, and not the names.
2.13.5 isValid
public static boolean isValid(String dn)
Returns true if the string conforms to distinguished name syntax
(section 3 of [DN]. It MAY return true also if the string conforms to
section 4 of [DN].
Parameters are:
dn String to evaluate for distinguished name syntax.
2.13.6 normalize
public static String normalize(String dn)
Returns the DN normalized by removal of non-significant space
characters as per RFC 2253, section 4 [DN].
Parameters are:
dn The DN to normalize.
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2.13.7 unescapeRDN
public static String unescapeRDN(String rdn)
Returns the RDN after unescaping the characters requiring escaping
[DN]. For example, for the rdn "cn=Example\, Inc", "cn=Example, Inc"
is returned. IllegalArgumentException is thrown if the RDN cannot be
parsed.
Parameters are:
rdn The RDN to unescape.
2.14 public class LDAPEntry
implements Serializable, Comparable
An LDAPEntry represents a single entry in a directory, consisting of
a distinguished name (DN) and zero or more attributes. An instance of
LDAPEntry is created in order to add an entry to a Directory, and
instances are returned on a search by either enumerating an
LDAPSearchResults, or calling LDAPSearchResult.getEntry.
2.14.1 Constructors
public LDAPEntry()
Constructs an empty entry.
public LDAPEntry(String dn)
Constructs a new entry with the specified distinguished name and with
an empty attribute set.
public LDAPEntry(String dn,
LDAPAttributeSet attrs)
Constructs a new entry with the specified distinguished name and set
of attributes.
Parameters are:
dn The distinguished name of the new entry. The
value is not validated. An invalid distinguished
name will cause adding of the entry to a
directory to fail.
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attrs The initial set of attributes assigned to the
entry.
2.14.2 compareTo
public int compareTo(Object obj)
Compares this object with the specified object for order. Ordering is
determined by comparing normalized DN values (see LDAPEntry.getDN()
and LDAPDN.normalize()) using the compareTo() method of the String
class. Returns a negative integer, zero, or a positive integer as
this object is less than, equal to, or greater than the specified
object.
Parameters are:
obj The object to be compared to this object.
2.14.3 getAttribute
public LDAPAttribute getAttribute(String attrName)
Returns a copy of the attribute matching the specified attrName.
Parameters are:
attrName The name of the attribute. See 2.3.3 for the
syntax and semantics relevant to this parameter.
2.14.4 getAttributeSet
public LDAPAttributeSet getAttributeSet()
Returns a copy of the attribute set of the entry. Copies of all base
and subtype variants of all attributes are returned. The
LDAPAttributeSet returned MAY be empty if there are no attributes in
the entry.
public LDAPAttributeSet getAttributeSet(String subtype)
Returns an attribute set from the entry, consisting of copies of only
those attributes matching the specified subtype(s). This may be used
to extract only a particular language variant subtype of each
attribute, if it exists. "subtype" may be, for example, "lang-ja",
"binary", or "lang-ja;phonetic". If more than one subtype is
specified, separated with a semicolon, only those attributes with all
of the named subtypes will be returned. The LDAPAttributeSet
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returned may be empty if there are no matching attributes in the
entry.
Parameters are:
subtype One or more subtype specification(s), separated
with semicolons. "lang-ja" and
"lang-en;phonetic" are valid subtype
specifications.
2.14.5 getDN
public String getDN()
Returns the distinguished name of the entry.
2.15 public class LDAPException
extends Exception
Thrown to indicate that an error has occurred. An LDAPException can
result from physical problems (such as network errors) as well as
problems with LDAP operations (for example, if the LDAP add operation
fails because an entry already exists with the DN of the entry to be
added) or local errors in the API implementation.
Most errors that occur throw this type of exception. The
getLDAPResultCode() method returns the specific result code.
2.15.1 Constructors
public LDAPException()
Constructs a default exception with no specific error information.
public LDAPException(String message,
int resultCode,
String serverMessage)
Constructs an exception with a result code, specified string as
additional information, and optionally a message from the server.
public LDAPException(String message,
int resultCode,
String serverMessage,
Throwable rootException)
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Constructs an exception with a result code, a specified string, an
optional message from the server, and an embedded root exception as
additional information.
public LDAPException(String message,
int resultCode,
String serverMessage,
String matchedDN)
Constructs an exception with a result code, a specified string as
additional information, an optional message from the server, and the
maximal subset of a specified DN which could be matched by the server
on a search operation.
Parameters are:
message The additional error information
resultCode The result code returned
serverMessage Error message specifying additional information
from the server.
matchedDN The DN of the most immediate ancestor of a
specified search DN which could be found by the
server on a search operation
rootException An exception which caused the failure, if any
2.15.2 getCause
public Throwable getCause()
Returns the lower level Exception which caused the failure, if any.
For example, an IOException with additional information MAY be
returned on a CONNECT_ERROR failure.
2.15.3 getLDAPErrorMessage
public String getLDAPErrorMessage()
Returns the error message, if this message is available (that is, if
this message was set). If the message was not set, this method
returns null.
2.15.4 getResultCode
public int getResultCode()
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Returns the result code from the exception. The codes are defined as
public final static int members of this class. If the exception is a
result of error information returned from a directory operation, the
code will be one of those defined in [LDAPv3]. Otherwise, a local
error code is returned (see "Result codes" below).
2.15.5 getMatchedDN
public String getMatchedDN()
Returns the matchedDN value provided by the server in the response
which generated this exception (it may be empty). If the exception is
not due to a server response, null is returned.
2.15.6 resultCodeToString
public String resultCodeToString()
Returns a String representing the result code in the default Locale.
public static String resultCodeToString( int code )
Returns a String representing the specified result code in the
default Locale, or null if there is no such code known to the API.
public String resultCodeToString( Locale locale )
Returns a String representing the result code in the specified
Locale, or null if a String representation is not available for the
requested Locale.
public static String resultCodeToString( int code, Locale locale )
Returns a String representing the specified result code in the
specified Locale, or null if there is no such code or if a String
representation is not available for the requested Locale.
Parameters are:
code One of the result codes listed in "Result codes"
below.
locale A Locale in which to render the String.
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2.15.7 toString
public String toString()
Overrides the default toString implementation. It expands all the
nested exceptions.
2.15.8 Result codes
See [LDAPv3] for a discussion of the meanings and values of the
codes. The corresponding ASN.1 name from [LDAPv3] is provided in
parentheses.
ADMIN_LIMIT_EXCEEDED (adminLimitExceeded)
AFFECTS_MULTIPLE_DSAS (affectsMultipleDSAs)
ALIAS_DEREFERENCING_PROBLEM (aliasDereferencingProblem)
ALIAS_PROBLEM (aliasProblem)
ATTRIBUTE_OR_VALUE_EXISTS (attributeOrValueExists)
AUTH_METHOD_NOT_SUPPORTED (authMethodNotSupported)
BUSY (busy)
COMPARE_FALSE (compareFalse)
COMPARE_TRUE (compareTrue)
CONFIDENTIALITY_REQUIRED (confidentialityRequired)
CONSTRAINT_VIOLATION (constraintViolation)
ENTRY_ALREADY_EXISTS (entryAlreadyExists)
INAPPROPRIATE_AUTHENTICATION (inappropriateAuthentication)
INAPPROPRIATE_MATCHING (inappropriateMatching)
INSUFFICIENT_ACCESS_RIGHTS (insufficientAccessRights)
INVALID_ATTRIBUTE_SYNTAX (invalidAttributeSyntax)
INVALID_CREDENTIALS (invalidCredentials)
INVALID_DN_SYNTAX (invalidDNSyntax)
IS_LEAF (isLeaf)
LOOP_DETECT (loopDetect)
NAMING_VIOLATION (namingViolation)
NO_SUCH_ATTRIBUTE (noSuchAttribute)
NO_SUCH_OBJECT (noSuchObject)
NOT_ALLOWED_ON_NONLEAF (notAllowedOnNonLeaf)
NOT_ALLOWED_ON_RDN (notAllowedOnRDN)
OBJECT_CLASS_MODS_PROHIBITED (objectClassModsProhibited)
OBJECT_CLASS_VIOLATION (objectClassViolation)
OPERATIONS_ERROR (operationsError)
OTHER (other)
PROTOCOL_ERROR (protocolError)
REFERRAL (referral)
SASL_BIND_IN_PROGRESS (saslBindInProgress)
SIZE_LIMIT_EXCEEDED (sizeLimitExceeded)
STRONG_AUTH_REQUIRED (strongAuthRequired)
SUCCESS (success)
TIME_LIMIT_EXCEEDED (timeLimitExceeded)
UNAVAILABLE (unavailable)
UNAVAILABLE_CRITICAL_EXTENSION (unavailableCriticalExtension)
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UNDEFINED_ATTRIBUTE_TYPE (undefinedAttributeType)
UNWILLING_TO_PERFORM (unwillingToPerform)
Local errors, resulting from actions other than an operation on a
server, are among the following:
AMBIGUOUS_RESPONSE (0x65)
AUTH_UNKNOWN (0x56)
CLIENT_LOOP (0x60)
CONNECT_ERROR (0x5b)
CONTROL_NOT_FOUND (0x5d)
DECODING_ERROR (0x54)
ENCODING_ERROR (0x53)
FILTER_ERROR (0x57)
INVALID_RESPONSE (0x64)
LOCAL_ERROR (0x52)
LDAP_NOT_SUPPORTED (0x5c)
LDAP_TIMEOUT (0x55)
MORE_RESULTS_TO_RETURN (0x5f)
NO_MEMORY (0x5a)
NO_RESULTS_RETURNED (0x5e)
REFERRAL_LIMIT_EXCEEDED (0x61)
SERVER_DOWN (0x51)
USER_CANCELLED (0x58)
TLS_NOT_SUPPORTED (0x70)
2.16 public class LDAPExtendedOperation
implements Cloneable, Serializable
An LDAPExtendedOperation encapsulates an OID which uniquely
identifies a particular extended operation, known to a particular
server, and the data associated with the operation.
2.16.1 Constructors
public LDAPExtendedOperation(String oid,
byte[] value)
Constructs a new object with the specified object ID and data.
Parameters are:
oid The object identifier of the operation.
value The operation-specific data of the operation.
2.16.2 getID
public String getID()
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Returns the object identifier of the operation.
2.16.3 getValue
public byte[] getValue()
Returns the operation-specific data (not a copy, a reference).
2.16.4 setValue
protected void setValue(byte[] value)
Sets the operation-specific data of the object. This method is for
use by extensions of LDAPExtendedOperation.
Parameters are:
value The value to be assigned to the object (as a
reference)
2.17 public class LDAPExtendedResponse
extends LDAPResponse
An LDAPExtendedResponse object encapsulates a server response to an
extended operation request.
2.17.1 getID
public String getID()
Returns the OID of the response.
2.17.2 getValue
public byte[] getValue()
Returns the raw bytes of the value part of the response.
2.17.3 register
public static void register(String oid, Class extendedResponseClass)
Registers a class to be instantiated on receipt of an extended
response with the given oid. Any previous registration for the oid is
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overridden. The extendedResponseClass object MUST be an extension of
LDAPExtendedResponse.
Parameters are:
oid The Object Identifier of the extended
response
extendedResponseClass A class which can instantiate an
LDAPExtendedResponse. The class must
implement the following constructor
signature:
public (String oid, byte[] value)
oid The Object Identifier of the extended
response
value Response-specific data; the API
implementation does not interpret or
convert the value
2.18 public class LDAPLocalException
extends LDAPException
Thrown to indicate that a local error has occurred in the API
implementation, for example a physical problem such as a network
error.
2.18.1 Constructors
public LDAPLocalException()
Constructs a default exception with no specific error information.
public LDAPLocalException(String message,
int resultCode)
Constructs an exception with a result code and a string as additional
information.
public LDAPException(String message,
int resultCode,
Throwable rootException)
Constructs an exception with a result code, a specified string, and
an embedded root exception as additional information.
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Parameters are:
message The additional error information
resultCode The result code returned
rootException An exception which caused the failure, if any
2.19 public class LDAPMatchingRuleSchema
extends LDAPSchemaElement
The LDAPMatchingRuleSchema class represents the definition of a
matching rule. It is used to query matching rule syntax, and to add
or delete a matching rule definition in a Directory. See [ATTR] for a
description of matching rule representation in LDAP.
2.19.1 Constructors
public LDAPMatchingRuleSchema(String[] names,
String oid,
String description,
String[] attributes,
boolean obsolete,
String syntaxString)
Constructs a matching rule definition for adding to or deleting from
a Directory. [LDAPv3] defines which parameters are optional (may be
null).
public LDAPMatchingRuleSchema(String rawMatchingRule,
String rawMatchingRuleUse)
Constructs a matching rule definition from values encoded
using the matchingRule syntax and the matchingRuleUse syntax [ATTR]
for the same rule.
Parameters are:
name Name of the attribute.
oid Object Identifier of the attribute - in
dotted-decimal format.
description Optional description of the attribute.
attributes OIDs of attributes to which the rule applies.
The parameter MAY be null.
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obsolete true if this matching rule is obsolete.
syntaxString Object Identifier of the syntax that this
matching rule is valid for - in dotted-decimal
format.
rawMatchingRule A matching rule definition encoded using the
matchingRule syntax [ATTR].
rawMatchingRuleUse A matching rule use definition encoded using
the matchingRuleUse syntax [ATTR]. The
parameter MAY be null.
2.19.2 getAttributes
public String[] getAttributes()
Returns the OIDs of the attributes to which this rule applies.
2.19.3 getSyntaxString
public String getSyntaxString()
Returns the OID of the syntax that this matching rule is valid for.
2.20 public class LDAPMatchingRuleUseSchema
extends LDAPSchemaElement
The LDAPMatchingRuleUseSchema class represents the definition of a
matching rule use. It is used to discover or modify which attributes
are suitable for use with an extensible matching rule. It contains
the name and object identifier of a matching rule, and a list of
attributes that it applies to. See [ATTR] for a description of
matching rule use representation in LDAP.
2.20.1 Constructors
public LDAPMatchingRuleUseSchema(String[] names,
String oid,
String description,
boolean obsolete,
String[] attributes)
Constructs a matching rule use definition for adding to or deleting
from the schema. [LDAPv3] defines which parameters are optional (may
be null).
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public LDAPMatchingRuleUseSchema(String raw)
Constructs a matching rule use definition from an encoding
using the matchingRuleUse syntax [ATTR].
Parameters are:
names Name(s) of the matching rule.
oid Object Identifier of the matching rule - in
dotted-decimal format.
description Optional description of the matching rule use.
obsolete true if the matching rule use is obsolete.
attributes List of attributes that this matching rule
applies to. These values may be either the
names or numeric oids of the attributes
raw A matching rule use definition using the
matchingRuleUse syntax [ATTR].
2.20.2 getAttributes
public String[] getAttributes()
Returns an array of all the attributes that this matching rule
applies to.
2.21 public class LDAPMessage
implements Serializable
Base class for asynchronous LDAP request and response messages and
for LDAPExtendedResponse.
2.21.1 getControls
public LDAPControl[] getControls()
Returns any controls in the message.
2.21.2 getMessageID
public int getMessageID()
Returns the message ID. Message IDs are defined in section 4.1.1.1 of
[LDAPv3].
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2.21.3 getType
public int getType()
Returns the LDAP operation type of the message. The type is one of
the following:
BIND_REQUEST (0x0)
BIND_RESPONSE (0x1)
UNBIND_REQUEST (0x2)
SEARCH_REQUEST (0x3)
SEARCH_RESPONSE (0x4)
SEARCH_RESULT (0x5)
MODIFY_REQUEST (0x6)
MODIFY_RESPONSE (0x7)
ADD_REQUEST (0x8)
ADD_RESPONSE (0x9)
DEL_REQUEST (0xa)
DEL_RESPONSE (0xb)
MODIFY_RDN_REQUEST (0xc)
MODIFY_RDN_RESPONSE (0xd)
COMPARE_REQUEST (0xe)
COMPARE_RESPONSE (0xf)
ABANDON_REQUEST (0x10)
SEARCH_RESULT_REFERENCE (0x13)
EXTENDED_REQUEST (0x17)
EXTENDED_RESPONSE (0x18)
2.22 public interface LDAPMessageQueue
Represents the message queue associated with a particular
asynchronous LDAP operation or operations.
2.22.1 getMessageIDs
public int[] getMessageIDs()
Returns the message IDs for all outstanding requests, i.e. requests
for which a response has not been received from the server or which
still have messages to be retrieved with getResponse. The last ID in
the array is the messageID of the latest submitted request. Message
IDs are defined in section 4.1.1.1 of [LDAPv3].
2.22.2 getResponse
public LDAPMessage getResponse()throws LDAPException
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Blocks until a response is available, or until all operations
associated with the object have completed or been canceled, and
returns the response.
public LDAPMessage getResponse(int msgid)throws LDAPException
Blocks until a response is available for a particular message ID, or
until all operations associated with the message ID have completed or
been canceled, and returns the response. If there is no outstanding
operation for the message ID (or if it is zero or a negative number),
IllegalArgumentException is thrown.
Parameters are:
msgid A particular message to query for responses
available.
2.22.3 isResponseReceived
public boolean isResponseReceived()
Reports true if any response has been received from the server and
not yet retrieved with getResponse. If getResponse has been used to
retrieve all messages received to this point, then isResponseReceived
returns false.
public boolean isResponseReceived(int msgid)
Reports true if a response has been received from the server for a
particular message ID but not retrieved with getResponse. If there is
no outstanding operation for the message ID (or if it is zero or a
negative number), IllegalArgumentException is thrown.
Parameters are:
msgid A particular message to query for responses
available.
2.22.4 merge
public void merge(LDAPMessageQueue queue2)
Merges two queues. Moves/appends the content from another
queue to this one. After the operation, queue2.getMessageIDs()
returns an empty array and its outstanding responses have been
removed (and appended to this queue).
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2.23 public class LDAPModification
implements Serializable
A single change specification for an LDAPAttribute.
2.23.1 Constructors
public LDAPModification(int op,
LDAPAttribute attr)
Specifies a modification to be made to an attribute.
Parameters are:
op The type of modification to make, which can be
one of the following:
ADD The value should be added to
the attribute, creating the
attribute if necessary.
DELETE The value should be removed
from the attribute, removing
the entire attribute if no
values are listed, or if all
current values of the attribute
are listed for deletion.
REPLACE The value should replace all
existing values of the
attribute with the new values
listed, creating the attribute
if it did not already exist. A
replace with no value will
delete the entire attribute if
it exists, and is ignored if
the attribute does not exist.
attr The attribute (possibly with values) to be
modified.
2.23.2 getAttribute
public LDAPAttribute getAttribute()
Returns the attribute (possibly with values) to be modified.
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2.23.3 getOp
public int getOp()
Returns the type of modification specified by this object.
2.23.4 Constants of LDAPModification
ADD (0) The value should be added to the attribute,
creating the attribute if necessary.
DELETE (1) The value should be removed from the attribute,
removing the entire attribute if no values are
listed, or if all current values of the attribute
are listed for deletion.
REPLACE (2) The value should replace all existing values of
the attribute with the new values listed,
creating the attribute if it did not already
exist. A replace with no value will delete the
entire attribute if it exists, and is ignored if
the attribute does not exist.
2.24 public class LDAPNameFormSchema
extends LDAPSchemaElement
The LDAPNameFormSchema class represents the definition of a Name
Form. It is used to discover or modify the allowed naming attributes
for a particular object class. See [ATTR] for a description of name
form representation in LDAP.
2.24.1 Constructors
public LDAPNameFormSchema(String[] names,
String oid,
String description,
boolean obsolete,
String objectClass,
String[] required,
String[] optional)
Constructs a name form for adding to or deleting from the schema.
[LDAPv3] defines which parameters are optional (may be null).
public LDAPNameFormSchema(String raw)
Constructs a DIT content rule from an encoding
using the nameForms syntax [ATTR].
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Parameters are:
names Name(s) of the name form.
oid Object Identifier of the name form - in
dotted-decimal format.
description Optional description of the name form.
obsolete true if the name form is obsolete.
objectClass The object to which this name form applies.
This may either be specified by name or
numeric oid.
required A list of the attributes that must be present
in the RDN of an entry that this name form
controls. These may either be specified by
name or numeric oid.
optional A list of the attributes that may be present
in the RDN of an entry that this name form
controls. These may either be specified by
name or numeric oid.
raw A name form definition encoded using the
nameForms syntax [ATTR].
2.24.2 getObjectClass
public String getObjectClass()
Returns the name of the object class that this name form applies to.
2.24.3 getOptionalNamingAttributes
public String[] getOptionalNamingAttributes()
Returns the list of optional naming attributes for an entry
controlled by this content rule.
2.24.4 getRequiredNamingAttributes
public String[]getRequiredNamingAttributes()
Returns the list of required naming attributes for an entry
controlled by this name form.
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2.25 public class LDAPObjectClassSchema
extends LDAPSchemaElement
The LDAPObjectClassSchema class represents the definition of an
object class. It is used to query the syntax of an object class, and
to add or delete an object class definition in a Directory. See
[ATTR] for a description of object class representation in LDAP.
2.25.1 Constructors
public LDAPObjectClassSchema(String[] names,
String oid,
String[] superiors,
String description,
String[] required,
String[] optional,
int type,
boolean obsolete)
Constructs an object class definition for adding to or deleting from
a Directory. [LDAPv3] defines which parameters are optional (may be
null).
public LDAPObjectClassSchema(String raw)
Constructs an object class definition from an encoding
using the ObjectClassDescription syntax [ATTR].
Parameters are:
names Name(s) of the object class.
oid Object Identifier of the object class - in
dotted-decimal format.
description Optional description of the object class.
superiors The object classes this one derives from.
required A list of attributes required for an entry with
this object class.
optional A list of attributes acceptable but not required
for an entry with this object class.
type One of ABSTRACT, AUXILIARY, or STRUCTURAL. These
are constants defined in LDAPObjectClassSchema.
obsolete true if this object class is obsolete.
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raw An object class definition encoded using the
ObjectClassDescription syntax [ATTR].
2.25.2 getOptionalAttributes
public String[] getOptionalAttributes()
Returns a list of attributes acceptable but not required of an entry
with this object class.
2.25.3 getRequiredAttributes
public String[] getRequiredAttributes()
Returns a list of attributes required of an entry with this object
class.
2.25.4 getSuperiors
public String[] getSuperiors()
Returns the object classes which this one derives from.
2.25.5 getType
public int getType()
Returns one of ABSTRACT, AUXILIARY, or STRUCTURAL. These are
constants defined in LDAPObjectClassSchema.
2.25.6 Constants of LDAPObjectClassSchema
ABSTRACT (0) identifies an abstract schema class
STRUCTURAL (1) identifies a structural schema class
AUXILIARY (2) identifies an auxiliary schema class
2.26 public class LDAPReferralException
extends LDAPException
This exception, derived from LDAPException, is thrown when a server
returns a referral or search reference on a synchronous request and
automatic referral following has not been enabled.
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2.26.1 Constructors
public LDAPReferralException()
Constructs a default exception with no specific error information.
public LDAPReferralException(String message)
Constructs a default exception with a specified string as additional
information. This form is used for lower-level errors.
public LDAPReferralException(String message,
Throwable rootException)
Constructs a default exception with a specified string as additional
information and an exception that indicates a failure to follow a
referral. This exception applies only to synchronous operations and
is thrown only on receipt of a referral or search reference when the
referral or search reference was not followed.
public LDAPReferralException(String message,
int resultCode,
String serverMessage)
public LDAPReferralException(String message,
int resultCode,
String serverMessage,
Throwable rootException)
Parameters are:
message The additional error information.
resultCode The result code returned
serverMessage Error message specifying additional information
from the server.
rootException An exception which caused referral following to
fail
2.26.2 getFailedReferral
public String getFailedReferral()
Gets the referral URL that could not be followed. If multiple URLs
are in the list, and none could be followed, the method returns one
of them.
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2.26.3 getReferrals
public String[] getReferrals()
Gets the list of referral URLs (URLs to other servers) returned by
the LDAP server. If the scope field of a referral of type
SearchResultReference must be modified in order to follow the
referral, the API implementation MUST modify the scope field of the
URL before returning the URL to the application.
The referral list MAY include URLs of a type other than ones for an
LDAP server (i.e. a referral URL other than ldap://something).
2.26.4 setFailedReferral
public void setFailedReferral(String url)
Sets a referral URL that could not be followed.
2.27 public interface LDAPReferralHandler
Shared ancestor to the two types of referral objects -
LDAPBindHandler and LDAPAuthHandler.
2.28 public class LDAPResponse
extends LDAPMessage
Represents the response to a particular asynchronous LDAP operation.
2.28.1 getErrorMessage
public String getErrorMessage()
Returns any error message in the response.
2.28.2 getMatchedDN
public String getMatchedDN()
Returns the partially matched DN field, if any, in a server response.
2.28.3 getReferrals
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public String[] getReferrals()
Returns list of all referral URLs, if any, in a server response.
2.28.4 getResultCode
public int getResultCode()
Returns the result code in a server response, as defined in [LDAPv3].
2.29 public class LDAPResponseQueue
implements LDAPMessageQueue
Represents the message queue associated with a particular
asynchronous LDAP operation or operations.
2.29.1 getMessageIDs
public int[] getMessageIDs()
Returns the message IDs for all outstanding requests, i.e. requests
for which a response has not been received from the server or which
still have messages to be retrieved with getResponse. The last ID in
the array is the messageID of the latest submitted request. Message
IDs are defined in section 4.1.1.1 of [LDAPv3].
2.29.2 getResponse
public LDAPMessage getResponse()throws LDAPException
Blocks until a response is available, or until all operations
associated with the object have completed or been canceled, and
returns the response.
public LDAPMessage getResponse(int msgid)throws LDAPException
Blocks until a response is available for a particular message ID, or
until all operations associated with the message ID have completed or
been canceled, and returns the response. If there is no outstanding
operation for the message ID (or if it is zero or a negative number),
IllegalArgumentException is thrown.
Parameters are:
msgid A particular message to query for responses
available.
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2.29.3 isResponseReceived
public boolean isResponseReceived()
Reports true if any response has been received from the server and
not yet retrieved with getResponse. If getResponse has been used to
retrieve all messages received to this point, then isResponseReceived
returns false.
public boolean isResponseReceived(int msgid)
Reports true if a response has been received from the server for a
particular message ID. If there is no outstanding operation for the
message ID (or if it is zero or a negative number),
IllegalArgumentException is thrown.
Parameters are:
msgid A particular message to query for responses
available.
2.29.4 merge
public void merge(LDAPMessageQueue queue2)
Merges two response queues. Moves/appends the content from another
queue to this one.
2.30 public class LDAPSchema
extends LDAPEntry
implements Serializable
The LDAPSchema class provides methods to parse schema attributes.
Schema may be retrieved from a Directory server with the fetchSchema
method of LDAPConnection or by creating an LDAPEntry containing
schema attributes.
2.30.1 Constructors
public LDAPSchema(LDAPEntry entry)
Constructs an LDAPSchema object from attributes of an LDAPEntry. The
object is empty if the entry parameter contains no schema attributes.
Parameters are:
entry An LDAPEntry containing schema information.
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2.30.2 getAttributeNames
public Enumeration getAttributeNames()
Returns an enumeration of attribute names.
2.30.3 getAttributeSchema
public LDAPAttributeSchema getAttributeSchema( String name )
Returns a particular attribute definition, or null if not found.
Parameters are:
name Name or OID of the attribute for which a
definition is to be returned.
2.30.4 getAttributeSchemas
public Enumeration getAttributeSchemas()
Returns an enumeration of attribute definitions.
2.30.5 getDITContentRuleNames
public Enumeration getDITContentRuleNames ()
Returns an enumeration of content rule names.
2.30.6 getDITContentRuleSchema
public LDAPDITContentRuleSchema
getDITContentRuleSchema(String name )
Returns a particular content rule definition, or null if not found.
Parameters are:
name Name or OID of the content rule for which a
definition is to be returned.
2.30.7 getDITContentRuleSchemas
public Enumeration getDITContentRuleSchemas()
Returns an enumeration of LDAPDITContentRuleSchema objects.
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2.30.8 getDITStructureRuleNames
public Enumeration getDITStructureRuleNames ()
Returns an enumeration of structure rule names.
2.30.9 getDITStructureRuleSchema
public LDAPDITStructureRuleSchema
getDITStructureRuleSchema( String name )
public LDAPDITStructureRuleSchema getDITStructureRuleSchema( int id )
Returns a particular structure rule definition, or null if not found.
Parameters are:
name Name or OID of the structure rule for which a
definition is to be returned.
id Identifier of the structure rule for which a
definition is to be returned.
2.30.10 getDITStructureRuleSchemas
public Enumeration getDITStructureRuleSchemas()
Returns an enumeration of LDAPDITStructureRuleSchema objects.
2.30.11 getMatchingRuleNames
public Enumeration getMatchingRuleNames()
Returns an enumeration of matching rule names.
2.30.12 getMatchingRuleSchema
public LDAPMatchingRuleSchema getMatchingRuleSchema( String name )
Returns a particular matching rule definition, or null if not found.
Parameters are:
name Name or OID of the matching rule for which a
definition is to be returned.
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2.30.13 getMatchingRuleSchemas
public Enumeration getMatchingRuleSchemas()
Returns an enumeration of matching rule definitions.
2.30.14 getMatchingRuleUseNames
public Enumeration getMatchingRuleUseNames()
Returns an enumeration of matching rule use names.
2.30.15 getMatchingRuleUseSchema
public LDAPMatchingRuleUseSchema getMatchingRuleUseSchema( String
name )
Returns a particular matching rule use definition, or null if not
found.
Parameters are:
name Name or OID of the matching rule use for which a
definition is to be returned.
2.30.16 getMatchingRuleUseSchemas
public Enumeration getMatchingRuleUseSchemas()
Returns an enumeration of LDAPMatchingRuleUseSchema objects.
2.30.17 getNameFormNames
public Enumeration getNameFormNames ()
Returns an enumeration of name form names.
2.30.18 getNameFormSchema
public LDAPNameFormSchema getNameFormSchema( String name )
Returns a particular name form definition, or null if not found.
Parameters are:
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name Name or OID of the name form for which a
definition is to be returned.
2.30.19 getNameFormSchemas
public Enumeration getNameFormSchemas()
Returns an enumeration of LDAPNameFormSchema objects.
2.30.20 getObjectClassNames
public Enumeration getObjectClassNames()
Returns an enumeration of object class names.
2.30.21 getObjectClassSchema
public LDAPObjectClassSchema getObjectClassSchema( String name )
Returns a particular object class definition, or null if not found.
Parameters are:
name Name or OID of the object class for which a
definition is to be returned.
2.30.22 getObjectClassSchemas
public Enumeration getObjectClassSchemas()
Returns an enumeration of object class definitions.
2.30.23 getSyntaxSchema
public LDAPSyntaxSchema getSyntaxSchema( String oid )
Returns a particular syntax definition, or null if not found.
Parameters are:
oid Object identifier of the syntax for which a
definition is to be returned.
2.30.24 getSyntaxSchemas
public Enumeration getSyntaxSchemas()
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Returns an enumeration of LDAPSyntaxSchema objects.
2.31 public abstract class LDAPSchemaElement
extends LDAPAttribute
The LDAPSchemaElement class is the base class for representing schema
elements in LDAP. All classes representing schema elements are
read-only and thus do not support the addValue and removeValue
methods from LDAPAttribute. This class overrides those methods and
throws UnsupportedOperationException if addValue or removeValue is
invoked.
2.31.1 getDescription
public String getDescription()
Returns the description of the element. With respect to the protocol-
level schema element syntax definition of [ATTR], the value is that
of the DESC qualifier.
2.31.2 getNames
public String[] getNames()
Returns the name(s) of the element.
2.31.3 getID
public String getID()
Returns the Object Identifier of the element.
2.31.4 getQualifier
public String[] getQualifier(String name)
Returns an array of all values of a qualifier of the element which is
not defined in [ATTR]. This method may be used to access the values
of vendor-specific qualifiers (which begin with "X-" [ATTR]).
Parameters are:
name The name of the qualifier, case-sensitive.
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2.31.5 getQualifierNames
public Enumeration getQualifierNames()
Returns an enumeration of all qualifiers of the element which are not
defined in [ATTR].
2.31.6 isObsolete
public boolean isObsolete()
Returns true if the element has the OBSOLETE qualifier in its LDAP
definition [ATTR].
2.31.7 setQualifier
public void setQualifier(String name, String[] values)
Sets the values of a specified optional or experimental qualifier of
the element. This method may be used to set the values of vendor-
specific qualifiers (which begin with "X-" [ATTR]).
Parameters are:
name The name of the qualifier, case-sensitive.
values The values to set for the qualifier.
2.31.8 toString
public String toString()
Returns a String in a format suitable for directly adding to a
Directory (defined in [ATTR], as a value of the particular schema
element attribute. See the format definition for each derived class.
2.32 public class LDAPSearchConstraints
extends LDAPConstraints
A set of options to control a search operation. There is always an
LDAPSearchConstraints associated with an LDAPConnection object; its
values can be changed with LDAPConnection.setConstraints, or
overridden by passing an LDAPSearchConstraints object to the search
operation.
2.32.1 Constructors
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public LDAPSearchConstraints()
Constructs an LDAPSearchConstraints object that specifies the default
set of search constraints.
public LDAPSearchConstraints(LDAPConstraints cons)
Constructs an LDAPSearchConstraints object initialized with values
from an existing constraints object (LDAPConstraints or
LDAPSearchConstraints).
public LDAPSearchConstraints(int msLimit,
int serverTimeLimit,
int dereference,
int maxResults,
boolean doReferrals,
int batchSize,
LDAPReferralHandler handler,
int hop_limit)
Constructs a new LDAPSearchConstraints object and allows specifying
the operational constraints in that object.
Parameters are:
cons Constraints object to use as template.
msLimit Maximum time in milliseconds to wait for results
(0 by default, which means that there is no
maximum time limit). This is an interface-imposed
limit.
serverTimeLimit Maximum time in seconds that the server should
spend returning results. This is a server-imposed
limit. The default of 0 means no time limit.
dereference Specifies when aliases should be dereferenced.
MUST be either DEREF_NEVER, DEREF_FINDING,
DEREF_SEARCHING, or DEREF_ALWAYS (DEREF_NEVER by
default).
maxResults Maximum number of search results to return (1000
by default).
doReferrals Specify true to follow referrals automatically,
or false to throw an LDAPReferralException error
if the server sends back a referral (false by
default). It is ignored for asynchronous
operations.
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batchSize Specify the number of results to block on during
enumeration. 0 means to block until all results
are in (1 by default). It is ignored for
asynchronous operations.
handler Custom authentication processor, called when the
LDAPConnection needs to authenticate, typically
on following a referral. null MAY be specified to
indicate default authentication processing. The
object implements either the LDAPBindHandler or
the LDAPAuthHandler interface. It is ignored for
asynchronous operations.
hop_limit Maximum number of referrals to follow in a
sequence when attempting to resolve a request,
when doing automatic referral following. It is
ignored for asynchronous operations. The value is
10 by default.
2.32.2 getBatchSize
public int getBatchSize()
Returns the number of results to block on during enumeration of
search results. This SHOULD be 0 if intermediate results are not
needed, and 1 if results are to be processed as they come in.
2.32.3 getDereference
public int getDereference()
Specifies when aliases should be dereferenced. Returns one of
DEREF_NEVER, DEREF_FINDING, DEREF_SEARCHING, or
DEREF_ALWAYS.
2.32.4 getMaxResults
public int getMaxResults()
Returns the maximum number of search results to be returned; 0 means
no limit.
2.32.5 getServerTimeLimit
public int getServerTimeLimit()
Reports the maximum number of seconds that the server is to wait when
returning search results while using this constraint object
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2.32.6 setBatchSize
public void setBatchSize(int batchSize)
Sets the suggested number of results to block on during enumeration
of search results. This SHOULD be 0 if intermediate results are not
needed, and 1 if results are to be processed as they come in. The
default is 1.
Parameters are:
batchSize Blocking size on search enumerations.
2.32.7 setDereference
public void setDereference(int dereference)
Sets a preference indicating whether or not aliases should be
dereferenced, and if so, when.
Parameters are:
dereference Either DEREF_NEVER, DEREF_FINDING,
DEREF_SEARCHING, or DEREF_ALWAYS.
2.32.8 setMaxResults
public void setMaxResults(int maxResults)
Sets the maximum number of search results to be returned; 0 means no
limit. The default is 1000.
Parameters are:
maxResults Maximum number of search results to return.
2.32.9 setServerTimeLimit
public void setServerTimeLimit(int seconds)
Sets the maximum number of seconds that the server is to wait when
returning search results. The parameter is only recognized on search
operations.
2.32.10 Constants of LDAPSearchConstraints
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DEREF_NEVER (0) Aliases are never dereferenced.
DEREF_SEARCHING (1) Aliases are dereferenced when searching the
entries beneath the starting point of the search
(but not when finding the starting entry).
DEREF_FINDING (2) Aliases are dereferenced when finding the
starting point for the search (but not when
searching under that starting entry).
DEREF_ALWAYS (3) Aliases are always dereferenced (both when
finding the starting point for the search and
when searching under that starting entry).
2.33 public class LDAPSearchQueue
implements LDAPMessageQueue, Serializable
An LDAPSearchQueue manages search results and references returned on
one or more asynchronous search requests.
2.33.1 getMessageIDs
public int[] getMessageIDs()
Returns the message IDs for all outstanding requests, i.e. requests
for which a response has not been received from the server or which
still have messages to be retrieved with getResponse. The last ID in
the array is the messageID of the latest submitted request. Message
IDs are defined in section 4.1.1.1 of [LDAPv3].
2.33.2 getResponse
public LDAPMessage getResponse() throws LDAPException
Blocks until a response is available, or until all operations
associated with the object have completed or been canceled, and
returns the response.
public LDAPMessage getResponse(int msgid) throws LDAPException
Blocks until a response is available for a particular message ID, or
until all operations associated with the message ID have completed or
been canceled, and returns the response. If there is no outstanding
operation for the message ID (or if it is zero or a negative number),
IllegalArgumentException is thrown.
Parameters are:
msgid A particular message to query for responses
available.
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2.33.3 isComplete
public boolean isComplete(int msgid)
Reports true if all results for a particular message ID have been
received by the API implementation (i.e. a searchResultDone response
has been received by the API implementation). There may still be
messages queued in the object for retrieval by the application. If
there is no outstanding operation for the message ID (or if it is
zero or a negative number), IllegalArgumentException is thrown.
Parameters are:
msgid A particular message to query for completion.
2.33.4 isResponseReceived
public boolean isResponseReceived()
Reports true if any response has been received from the server and
not yet retrieved with getResponse. If getResponse has been used to
retrieve all messages received to this point, then isResponseReceived
returns false.
public boolean isResponseReceived(int msgid)
Reports true if a response has been received from the server for a
particular message ID. If the message ID is zero or a negative
number, IllegalArgumentException is thrown.
Parameters are:
msgid A particular message to query for responses
available.
2.33.5 merge
public void merge(LDAPSearchQueue queue2)
Merges two search queues. Moves/appends the content from another
search queue to this one.
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2.34 public class LDAPSearchResult
extends LDAPMessage
An LDAPSearchResult object encapsulates a single asynchronous search
result.
2.34.1 getEntry
public LDAPEntry getEntry()
Returns the entry of a server search response.
2.35 public class LDAPSearchResultReference
extends LDAPMessage
An LDAPSearchResultReference object encapsulates a continuation
reference from an asynchronous search operation.
2.35.1 getReferrals
public String[] getReferrals()
Returns the list of any continuation reference URLs in the object.
2.36 public class LDAPSearchResults
implements Serializable
An LDAPSearchResults object is returned from a synchronous search
operation. It provides access to all results received during the
operation (entries and exceptions).
2.36.1 getCount
public int getCount()
Returns a count of the entries and exceptions in the object. If the
search was submitted with a batch size greater than 0, this reports
the number of results received so far but not enumerated with next().
2.36.2 getResponseControls
public LDAPControl[] getResponseControls()
Returns the latest Server Controls returned by a Directory Server
in the context of this search request.
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2.36.3 hasMore
public boolean hasMore()
Reports if there are more search results. If true, there are more
search results.
2.36.4 next
public LDAPEntry next() throws LDAPException
Returns the next search result as an LDAPEntry. If
automatic referral following is disabled or a referral was not
followed, next() will throw an LDAPReferralException when the
referral is received.
2.37 public interface LDAPSocketFactory
Used to construct a socket connection for use in an LDAPConnection.
2.37.1 createSocket
public Socket createSocket(String host, int port)
throws IOException, UnknownHostException
Returns a socket connected using the provided host name and port
number.
Parameters are:
host Contains a host identifier representing the IP
address of a host running an LDAP server to
connect to. See 2.8.8 for a discussion of valid
identifiers.
port Contains the TCP port number to connect to or
contact. The default LDAP port is 389.
2.38 public class LDAPSyntaxSchema
extends LDAPSchemaElement
The LDAPSyntaxSchema class represents the definition of a syntax. It
is used to discover the known set of syntaxes in effect for the
subschema. See [ATTR] for a description of syntax representation in
LDAP.
Note that though this extends LDAPSchemaElement, it does not use the
name or obsolete members, subsequently calls to getName always return
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null and isObsolete always returns false. There is also no matching
getSyntaxNames method in LDAPSchema.
Note also that adding and removing syntaxes is not typically a
supported feature of LDAP servers.
2.38.1 Constructors
public LDAPSyntaxSchema(String oid,
String description)
Constructs a syntax for adding to or deleting from the schema.
public LDAPSyntaxSchema(String raw)
Constructs a syntax from an encoding using the ldapSyntaxes syntax
[ATTR].
Parameters are:
oid Object Identifier of the syntax - in dotted-
decimal format.
description Optional description of the syntax.
raw A definition of a syntax encoded using the
ldapSyntaxes syntax [ATTR].
2.39 public interface LDAPTLSSocketFactory extends LDAPSocketFactory
Used to construct a socket connection for use in an LDAPConnection.
An implementation of this interface provides a TLSSocket connected to
a secure server.
2.39.1 createSocket
public Socket createSocket(Socket socket)
throws IOException, UnknownHostException
Converts the connected socket to a TLS socket.
Parameters are:
socket An active non-TLS socket.
2.40 public interface LDAPUnsolicitedNotificationListener
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An object that implements this interface can be notified when
unsolicited messages arrive from the server. A client registers the
object with LDAPConnection.addUnsolicitedNotificationListener.
2.40.1 messageReceived
public void messageReceived(LDAPExtendedResponse msg)
The method is called when an unsolicited message arrives from a
server, if the object has registered with
LDAPConnection.addUnsolicitedNotificationListener.
Parameters are:
msg An unsolicited message received from the server.
2.41 public class LDAPUrl
implements Cloneable, Serializable
Encapsulates parameters of an LDAP Url query, as defined in
[LDAPURL]. An LDAPUrl object can be passed to LDAPConnection.search
to retrieve search results.
2.41.1 Constructors
public LDAPUrl(String url) throws MalformedURLException
Constructs a URL object with the specified string as URL.
public LDAPUrl(String host,
int port,
String dn)
Constructs a URL object with the specified host, port, and DN. This
form is used to create URL references to a particular object in the
directory.
public LDAPUrl(String host,
int port,
String dn,
String[] attrNames,
int scope,
String filter,
String[] extensions)
Constructs an LDAP URL with all fields explicitly assigned, to
specify an LDAP search operation.
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Parameters are:
url An LDAP URL string, e.g.
"ldap://ldap.example.com:80/dc=example,dc=com?cn,
sn?sub?(objectclass=inetOrgPerson)".
host Host identifier of LDAP server, or null for
"localhost". See 2.8.8 for a discussion of valid
identifiers.
port Port number for LDAP server (use
LDAPConnection.DEFAULT_PORT for default port).
dn Distinguished name of the base object of the
search.
attrNames Names or OIDs of attributes to retrieve. Passing
a null array signifies that all user attributes
are to be retrieved. Passing a value of "*" as an
element of the array signifies that all user
attributes are to be retrieved.
scope Depth of search (in DN namespace). Use one of
SCOPE_BASE, SCOPE_ONE, SCOPE_SUB from
LDAPConnection.
filter Search filter specifying the search criteria, as
defined in [FILTER].
extensions LDAP URL extensions specified; may be null or
empty. Each extension is a type=value expression.
The =value part MAY be omitted. The expression
MAY be prefixed with '!' if it is mandatory for
evaluation of the URL.
2.41.2 decode
public static String decode(String URLEncoded)
throws MalformedURLException
Decodes a URL-encoded string. Any occurrences of %HH are decoded to
the hex value represented. However, this method does NOT decode "+"
into " ". See [URL] for details on URL encoding/decoding.
Parameters are:
URLEncoded String to decode.
2.41.3 encode
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public static String encode(String toEncode)
Encodes the specified string. Any illegal characters are encoded as
%HH.
Parameters are:
toEncode String to encode.
2.41.4 getAttributeArray
public String[] getAttributeArray()
Returns an array of attribute names specified in the URL.
2.41.5 getAttributes
public Enumeration getAttributes()
Returns an enumerator for the attribute names specified in the URL.
The enumerator is empty if the URL contains no attribute names.
2.41.6 getDN
public String getDN()
Returns the distinguished name encapsulated in the URL, or null if
none is specified.
2.41.7 getExtensions
public String[] getExtensions ()
Returns any LDAP URL extensions specified, or null if none are
specified. Each extension is a type=value expression. The =value part
MAY be omitted. The expression MAY be prefixed with '!' if it is
mandatory for evaluation of the URL.
2.41.8 getFilter
public String getFilter()
Returns the search filter [LDAPURL], or null if none was specified.
2.41.9 getHost
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public String getHost()
Returns the host name of the LDAP server to connect to.
2.41.10 getPort
public int getPort()
Returns the port number of the LDAP server to connect to.
2.41.11 getScope
public int getScope()
Returns the depth of search (in DN namespace) - one of SCOPE_BASE,
SCOPE_ONE, SCOPE_SUB from LDAPConnection.
2.41.12 toString
public String toString()
Returns a valid string representation of this LDAP URL.
3. Implementation considerations
3.1 Controls
LDAPv3 operations can be extended through the use of controls.
Controls MAY be sent to a server or returned to the client with any
LDAP message. These controls are represented by LDAPControl.
Controls are set and retrieved in LDAPConnection with the
setConstraints and getConstraints methods. Either a single
LDAPControl or an array may be specified, e.g.
LDAPControl control = new LDAPControl( type, critical, vals );
LDAPConstraints cons = ld.getConstraints();
cons.setControls( control );
ld.setConstraints( cons );
or
LDAPControl[] controls = new LDAPControl[2];
controls[0] = new LDAPControl( type0, critical0, vals0 );
controls[1] = new LDAPControl( type1, critical1, vals1 );
LDAPConstraints cons = ld.getConstraints();
cons.setControls( controls );
ld.setConstraints( cons );
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Server controls returned to a client as part of the response to a
synchronous operation can be obtained with
LDAPConnection.getResponseControls() or
LDAPSearchResults.getResponseControls(). Controls returned on an
asynchronous operation are available with LDAPMessage.getControls().
3.2 Referral handling and exceptions
Asynchronous requests
No automatic referral following is supported for asynchronous
requests.
No LDAPExceptions are thrown for asynchronous requests except in the
case of local errors. The Throwable causing the local error can be
retrieved with LDAPConnection.getCause().
When a referral is received, the application receives an LDAPResponse
object with a result code of REFERRAL. If a continuation reference is
received the application receives an LDAPSearchResultReference
object.
Synchronous requests
Referral-following behavior depends on two things: if automatic
referral following is enabled, and when enabled if an
LDAPReferralHandler is provided by the application.
- Behavior if automatic referral following is "false" (not enabled):
An LDAPException is thrown for any non-zero result code.
An LDAPException is thrown for local failures.
An LDAPReferralException is thrown if the result code is
REFERRAL. It contains the referral URL strings. This ends the
request, i.e., there are no more results to retrieve.
An LDAPReferralException is thrown for each
SearchResultReference received during a search request. It
contains the referral URL strings. This is not an error, there
may be more data to retrieve.
- Behavior if automatic referral following is "true" and either no
LDAPReferralHandler is registered in LDAPConstraints, or an
LDAPAuthHandler object is registered in LDAPConstraints:
Exception handling is the same whether or not an LDAPAuthHandler
object is registered, but authentication to the server is not
the same. The registration of an LDAPAuthHandler object allows
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connections to be authenticated. No handler registered results
in an anonymous (unauthenticated) connection.
LDAPExceptions are thrown if errors occur during the normal
processing of the command, i.e. NO_SUCH_OBJECT,
NO_SUCH_ATTRIBUTE, etc.
An LDAPReferralException is thrown only if the API
implementation could not connect and bind to any referral URL in
the list of URLs included in an individual REFERRAL result or
LDAPSearchResultReference.
When problems occur during the establishment of an authenticated
connection by the API implementation during automatic referral
following, the LDAPReferralException will contain the last tried
URL String of the server the API attempted to connect/bind to
(the referral can be retrieved with getFailedReferral()), and
the Throwable that caused the Exception (which can be retrieved
with getCause()).Some possible failures are IOException on the
connection, MalformedURLException on the referral string, or
authentication failures on the bind.
Upon receipt of an LDAPReferralException, the application knows
that the API implementation was not able to connect to any of
the servers in the referral list (which can be retrieved with
getReferrals()) and was not able to follow the referral. The
error indicated by getCause() occurred on the referral indicated
with getFailedReferral(). In the case of search, any results
starting at the indicated base of the referred to server are
missing from the search results.
- behavior if automatic referral following is "true", and an
LDAPBindHandler object is registered in LDAPConstraints:
LDAPExceptions are thrown if errors occur during the normal
processing of the command, i.e. NO_SUCH_OBJECT,
NO_SUCH_ATTRIBUTE, etc.
An LDAPReferralException is thrown only if the LDAPBindHandler
object throws an exception.
Upon receipt of an LDAPReferralException, the application knows
that the LDAPBindHandler object was not able or not willing to
connect to any of the servers in the referral list and so was
not able to follow the referral. The list of referrals that
failed is available with getReferrals() and the last failed
referral with getFailedReferral(). The exception thrown by the
LDAPBindHandler object is available with getCause().
3.3 Message IDs
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An implementation of the Java LDAP API SHOULD NOT generate messages
with an ID of 0.
3.4 Notice of disconnection
If a notice of disconnection is received by a connection object, the
object MUST close the connection without accepting or sending
additional messages. Any clones of the object are disconnected as a
consequence of closing the connection.
3.5 Level of compatibility
Implementations of the API are to be binary compatible. Any
implementation MUST behave as defined above with any application
written to the API specification.
3.6 Dependencies
The Java LDAP API is dependent on the following:
- JDK 1.2 or higher
- JAAS 1.0 or higher (for the interfaces in the
javax.security.auth.callback package)
3.7 Invalid responses
If a message is received by an API implementation from the server and
the message cannot be interpreted as an LDAP PDU, an LDAPException
MUST be thrown with a result code of INVALID_RESPONSE.
4. Security considerations
LDAP supports security through protocol-level authentication, using
clear-text passwords or other more secure mechanisms. It also
supports running over TLS, which provides strong security at the
transport layer.
If a TLS session is terminated by the server but the client TLS
provider and LDAP API implementation continue to use the socket
rather than closing it, the application is notified through an
LDAPException on the first operation request subsequent to
termination of the TLS session.
An interface to using SASL for configurable authentication and
session protection is provided, but implementations are outside the
scope of this document. Implementations of this API MUST ensure that
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a SASL provider is configured to comply with the minimal security
guidelines of RFC 2829 [AUTH].
Implementations of this API SHOULD be cautious when handling
authentication credentials. In particular, keeping long-lived copies
of credentials without the application's knowledge is discouraged.
Implementations of this API MUST discard information about the server
obtained prior to negotiation of security protections provided by
SASL and/or TLS [AUTH].
5. Acknowledgements
The proposed API builds on earlier work done in collaboration with
Thomas Kwan and Stephan Gudmundson, then of NCware Technologies Corp.
It also includes suggestions by Steven Merrill of Novell, Inc, and
benefited from extensive review and comments by Kurt Zeilenga of
OpenLDAP, Rosanna Lee of Sun Microsystems, Mark Smith of Netscape
Communications Corp., and Jim Sermersheim of Novell, Inc. Parts of
the overview of the LDAP model are taken from draft-ietf-ldapext-
ldap-c-api.
6. Bibliography
6.1 Normative References
[ATTR] M. Wahl, A. Coulbeck, T. Howes, S. Kille, "Lightweight
Directory Access Protocol: Attribute Syntax Definitions",
RFC 2252, December 1997
[AUTH] M. Wahl, H. Alvestrand, J. Hodges, R. Morgan, "Authentication
Methods for LDAP", RFC 2829, May 2000
[DN] S. Kille, " UTF-8 String Representation of Distinguished
Names," RFC 2253, December 1997.
[FILTER] T. Howes, "A String Representation of LDAP Search Filters,"
RFC 2254, December 1997.
[IPv6] R. Hinden, S. Deering, "IP Version 6 Addressing Architecture",
RFC 2373, July 1998
[IPv6URL] R. Hinden, B. Carpenter, L. Masinter, "Format for Literal
IPv6 Addresses in URL's", RFC 2732, December 1999
[LDAPLANG] M. Wahl, T. Howes, " Use of Language Codes in LDAP", RFC
2596, May 1999
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[LDAPTLS] J. Hodges, R. Morgan, M. Wahl, "Lightweight Directory
Access Protocol (v3): Extension for Transport Layer Security",
RFC 2830, May 2000.
[LDAPURL] T. Howes, M. Smith, "An LDAP URL Format", RFC 2255,
December 1997.
[LDAPv3] M. Wahl, T. Howes, S. Kille, "Lightweight Directory Access
Protocol (v3)", RFC 2251, December 1997.
[SASL] J. Myers, "Simple Authentication and Security Layer (SASL)",
RFC 2222, October 1997.
[TLS] T. Dierks, C. Allen, "The TLS Protocol", RFC 2246, January
1999.
[URL] T. Berners-Lee, R. Fielding, L. Masinter, " Uniform Resource
Identifiers (URI): Generic Syntax", RFC 2396, August 1998.
6.2 Informative References
[JAVA] B. Joy, G. Steele, J. Gosling, G. Bracha, "The Java Language
Specification", Second Edition, Addison-Wesley, June 2000
[JAVASASL] "Java SASL Specification", Java Community Process, JSR28
[KEYWORDS] "Key words for use in RFCs to Indicate Requirement
Levels", Bradner, S., RFC 2119, March 1997
[LANG] H. Alvestrans, "Tags for the Identification of Languages", RFC
3066, January 2001.
[X500] The Directory: Overview of Concepts, Models, and Services.
CCITT, Recommendation X.500, 2nd edition, 1993
7. Authors' addresses
Rob Weltman
Netscape Communications Corp.
466 Ellis Street
Mountain View, CA 94043
USA
+1 650 937-3194
rweltman@netscape.com
Christine Tomlinson
Sun Microsystems, Inc.
8911 Capital of Texas Highway
Suite 4140
Austin, TX US 78759
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+1 512 231 1600
christine.tomlinson@sun.com
Steven Sonntag
Novell, Inc.
1800 South Novell Place
Provo, UT 84606
USA
+1 801 861 7097
vtag@novell.com
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8. Appendix A - Sample Java LDAP programs
8.1 Java LDAP programs using synchronous methods
import org.ietf.ldap.*;
import java.util.*;
public class SearchJensen {
public static void main( String[] args ) {
LDAPConnection ld = new LDAPConnection();
try {
/* Connect to server */
String MY_HOST = "localhost";
int MY_PORT = 389;
ld.connect( MY_HOST, MY_PORT );
/* Authentication not required for an anonymous
connection */
/* search for all entries with surname of Jensen */
String MY_FILTER = "(sn=Jensen)";
String MY_SEARCHBASE = "dc=example,dc=com";
LDAPSearchConstraints cons = ld.getSearchConstraints();
/* Setting the batchSize to one will cause the result
enumeration below to block on one result at a time,
allowing us to update a list or do other things as
results come in. */
/* We could set it to 0 if we just wanted to get all
results and were willing to block until then */
cons.setBatchSize( 1 );
LDAPSearchResults res = ld.search( MY_SEARCHBASE,
ld.SCOPE_ONE,
MY_FILTER,
null,
false,
cons );
/* Loop on results until finished */
while ( res.hasMore() ) {
/* Next directory entry */
LDAPEntry findEntry = res.next ();
System.out.println( findEntry.getDN() );
/* Get the attributes of the entry */
LDAPAttributeSet findAttrs =
findEntry.getAttributeSet();
Iterator enumAttrs = findAttrs.iterator();
System.out.println( "Attributes: " );
/* Loop on attributes */
while ( enumAttrs.hasNext() ) {
LDAPAttribute anAttr =
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(LDAPAttribute)enumAttrs.next();
String attrName = anAttr.getName();
System.out.println( " " + attrName );
/* Loop on values for this attribute.
Note: we are assuming all values are UTF-8
strings
*/
Enumeration enumVals = anAttr.getStringValues();
while ( enumVals.hasMoreElements() ) {
String aVal = (String)enumVals.nextElement();
System.out.println( " " + aVal );
}
}
}
/* Done, so disconnect */
ld.disconnect();
} catch( LDAPException e ) {
System.out.println( "Error: " + e.toString() );
}
}
}
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import org.ietf.ldap.*;
import java.io.*;
import java.util.*;
import javax.security.auth.callback.*;
public class ModifyEmail {
public static void main( String[] args ) {
LDAPConnection ld = new LDAPConnection();
try {
/* Connect to server */
String MY_HOST = "localhost";
int MY_PORT = 389;
ld.connect( MY_HOST, MY_PORT );
String MY_NAME =
"uid=bjensen,ou=people,dc=example,dc=com";
/* Callback handler to supply credentials for SASL */
CallbackHandler cbh = new CallbackHandler() {
public void handle( Callback[] callbacks )
throws IOException, UnsupportedCallbackException {
for ( int i = 0; i < callbacks.length; i++ ) {
if ( callbacks[i] instanceof NameCallback ){
((NameCallback)callbacks[i]).setName(
"bjensen" );
} else if ( callbacks[i] instanceof
PasswordCallback ) {
((PasswordCallback)callbacks[i]).setPassword(
"MysteryLady".toCharArray() );
} else {
throw new UnsupportedCallbackException (
callbacks[i],
"Unrecognized Callback" );
}
}
}
};
/* SASL bind */
ld.bind( "cn=Barbara Jensen,dc=example,dc=com",
"bjensen", null, cbh );
/* Prepare to change my email address */
LDAPAttribute attrEmail =
new LDAPAttribute( "mail", "babs@example.com" );
LDAPModification mod =
new LDAPModification( LDAPModification.REPLACE,
attrEmail );
/* Now modify the entry in the directory */
ld.modify( MY_NAME, mod );
System.out.println( "Entry modified" );
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/* Done, so disconnect */
ld.disconnect();
} catch( LDAPException e ) {
System.out.println( "Error: " + e.toString() );
}
}
}
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import org.ietf.ldap.*;
import java.util.*;
public class ShowSchema {
public static void main( String[] args ) {
LDAPConnection ld = new LDAPConnection();
try {
/* Connect to server */
String MY_HOST = "localhost";
int MY_PORT = 389;
ld.connect( MY_HOST, MY_PORT );
/* Fetch the schema */
LDAPSchema schema = ld.fetchSchema( ld.getSchemaDN() );
/* What is the definition of "userPassword"? */
LDAPAttributeSchema a =
schema.getAttributeSchema( "userpassword" );
if ( a != null ) {
String syntax = a.getSyntaxString();
String syntaxString = "string";
if ( syntax.equals(BINARY_SYNTAX) )
syntaxString = "binary";
else if (syntax.equals(INTEGER_SYNTAX) )
syntaxString = "integer";
String single = "multi-valued";
if ( a.isSingleValued() )
single = "single-valued";
System.out.println( "userPassword. " +
"OID = " + a.getID() +
", type = " + syntaxString +
", " + single );
}
/* What are the possible attributes for "person"? */
LDAPObjectClassSchema o =
schema.getObjectClassSchema( "person" );
if ( o != null ) {
Enumeration required = o.getRequiredAttributes();
Enumeration optional = o.getOptionalAttributes();
System.out.println(
"Required attributes for person:" );
while( required.hasMoreElements() ) {
System.out.println( " " +
required.nextElement() );
}
System.out.println(
"Optional attributes for person:" );
while( optional.hasMoreElements() ) {
System.out.println( " " +
optional.nextElement() );
}
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}
/* Done, so disconnect */
ld.disconnect();
} catch( LDAPException e ) {
System.out.println( "Error: " + e.toString() );
}
}
protected static final String BINARY_SYNTAX =
"1.3.6.1.4.1.1466.115.121.1.5";
protected static final String INTEGER_SYNTAX =
"1.3.6.1.4.1.1466.115.121.1.27";
}
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8.2 Java LDAP programs using asynchronous methods
import org.ietf.ldap.*;
import java.util.*;
import java.io.UnsupportedEncodingException;
public class SearchJensen {
public static void main( String[] args ) {
try {
LDAPConnection ld = new LDAPConnection();
/* Connect to server */
String MY_HOST = "localhost";
int MY_PORT = 389;
byte[] MY_PASSWORD = null;
try {
MY_PASSWORD = "password".getBytes( "UTF8" );
} catch (UnsupportedEncodingException ex ) {
}
ld.connect( MY_HOST, MY_PORT );
/* Asynchronous authentication */
LDAPResponseQueue r =
ld.bind( 3, "uid=admin,ou=people,dc=example,dc=com",
MY_PASSWORD, (LDAPResponseQueue)null );
/* Do something else, just to show that we're not
blocked yet */
System.out.println( "Started authenticating" );
/* Wait until it completes */
LDAPResponse response = (LDAPResponse)r.getResponse();
int resultCode = response.getResultCode();
if (resultCode != LDAPException.SUCCESS) {
throw new LDAPException ( "error result",
resultCode,
response.getMatchedDN() );
}
/* search for all entries with surname of Jensen */
String MY_FILTER = "(sn=Jensen)";
String MY_SEARCHBASE = "dc=example,dc=com";
LDAPSearchQueue l =
ld.search( MY_SEARCHBASE,
ld.SCOPE_ONE,
MY_FILTER,
null,
false,
(LDAPSearchQueue)null );
/* Loop on results until finished */
LDAPMessage msg;
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while( (msg = l.getResponse()) != null ) {
if ( msg instanceof LDAPSearchResultReference ) {
String[] urls =
((LDAPSearchResultReference)msg).getReferrals();
// Do something with the referrals...
} else if ( msg instanceof LDAPSearchResult ) {
LDAPEntry entry =
((LDAPSearchResult)msg).getEntry();
// The rest of the processing is the same as for
// a synchronous search
System.out.println( entry.getDN() );
} else {
// A search response
LDAPResponse res = (LDAPResponse)msg;
int status = res.getResultCode();
if ( status == LDAPException.SUCCESS ) {
// Nothing to do
} else {
String err =
LDAPException.resultCodeToString(status);
throw new LDAPException(err,
status,
res.getMatchedDN());
}
}
}
/* Done, so disconnect */
ld.disconnect();
} catch ( LDAPException e ) {
System.err.println( e.toString() );
}
}
}
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import org.ietf.ldap.*;
import java.util.*;
/* This example multiplexes the input from three different servers */
public class MultiplexServers {
public static void main( String[] args ) {
try {
LDAPConnection [] ld = new LDAPConnection[3];
String[] hosts = { "foo1", "foo2", "foo3" };
int[] ports = { 389, 389, 2018 };
String[] bases = { "dc=example,dc=com",
"o=example.com",
"dc=example2,dc=com" };
/* search for all entries with surname of Jensen */
String MY_FILTER = "(sn=Jensen)";
for( int i = 0; i < ld.length; i++ ) {
ld[i] = new LDAPConnection();
/* Connect to server */
ld[i].connect( hosts[i], ports[i] );
}
/* Get a response queue for one search */
LDAPSearchQueue l =
ld[0].search( bases[0],
ld.SCOPE_SUB,
MY_FILTER,
null,
false,
(LDAPSearchQueue)null );
/* Share the queue */
for( int i = 1; i < ld.length; i++ ) {
ld[i].search( bases[i],
ld[i].SCOPE_SUB,
MY_FILTER,
null,
false,
l );
}
/* Loop on results until finished */
LDAPMessage msg;
while( (msg = l.getResponse()) != null ) {
/* The rest is the same as in the previous example */
/* ... */
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import org.ietf.ldap.*;
import java.util.*;
/* This example multiplexes the input from three searches in
different subtrees of the same server */
public class MultiplexTrees {
public static void main( String[] args ) {
try {
LDAPConnection ld = new LDAPConnection ();
/* Connect to server */
String MY_HOST = "localhost";
int MY_PORT = 389;
ld.connect( MY_HOST, MY_PORT );
String MY_FILTER = "(sn=Jensen)";
String[] bases = { "dc=example,dc=com",
"o=example.com",
"dc=example2,dc=com" };
/* Get a response queue for one search */
LDAPSearchQueue l =
ld.search( bases[0],
ld.SCOPE_SUB,
MY_FILTER,
null,
false,
(LDAPSearchQueue)null );
/* Share the queue */
for( int i = 1; i < bases.length; i++ ) {
ld.search( bases[i],
ld.SCOPE_SUB,
MY_FILTER,
null,
false,
l );
}
/* The rest is the same as in the MultiplexServers
example */
/* ... */
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import org.ietf.ldap.*;
import java.util.*;
public class ModifyEmail {
public static void main( String[] args ) {
LDAPConnection ld = new LDAPConnection( new myTLSFactory() );
try {
/* Connect to server */
String MY_HOST = "localhost";
int MY_PORT = 389;
ld.connect( MY_HOST, MY_PORT );
/* Use TLS to authenticate and secure the connection */
ld.startTLS();
/* Use SASL external on completed TLS client auth */
ld.bind( null, null, new String[] { "external" },
null, null );
/* Prepare to change my email address */
LDAPAttribute attrEmail =
new LDAPAttribute( "mail", "babs@example.com" );
LDAPModification mod =
new LDAPModification( LDAPModification.REPLACE,
attrEmail );
/* Now modify the entry in the directory */
LDAPResponseQueue r =
ld.modify( MY_NAME, mod, null );
/* Do something else, just to show that we're not
blocked yet */
System.out.println( "Started authenticating" );
/* Wait until it completes */
LDAPResponse response = (LDAPResponse)r.getResponse();
int resultCode = response.getResultCode();
if (resultCode != LDAPException.SUCCESS) {
throw new LDAPException ( "error result",
resultCode,
response.getMatchedDN() );
}
System.out.println( "Entry modified" );
/* Done, so disconnect */
ld.disconnect();
} catch( LDAPException e ) {
System.out.println( "Error: " + e.toString() );
}
}
}
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9. Appendix B - Revision history
9.1 Changes from ldap-java-api-17.txt
LDAPAttribute
Throws IllegalArgumentException for null as value parameter in
constructors.
Implements Comparable, with the method compareTo().
LDAPConnection
getProperty() returns null for property not found rather than
throwing LDAPException.
Added fetchSchema() and getSchemaDN().
Removed getInputStream(), getOutputStream(), setInputStream(),
setOutputStream().
LDAPConstraints
Removed text saying that non-LDAP URLs are ignored.
setProperty() throws IllegalArgumentException for an
unsupported property.
LDAPEntry
Implements Comparable, with the method compareTo().
Clarified that getAttributeSet() and getAttribute() return
copies rather than references.
LDAPExtendedOperation
Implements Cloneable.
LDAPExtendedResponse
Added register().
LDAPLocalException
New class for local errors.
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LDAPSchema
It now extends LDAPEntry.
Constructor takes an LDAPEntry as parameter.
Removed fetchSchema(), add(), modify(), remove(), and
saveSchema().Methods in LDAPConnection provide this
functionality.
LDAPSchemaElement
Extends LDAPAttribute.
Added clarification that the class is read only.
LDAPTLSSocketFactory
New interface to indicate ability to create a TLS socket.
Other
Java 2 is now a requirement (not JDK 1.1.8 or Java 2).
Editorial changes
9.2 Changes from ldap-java-api-16.txt
LDAPException
Added serverMessage as parameter in constructors.
Other
Corrected typographical errors and errors in examples of
appendix A.
9.3 Changes from ldap-java-api-15.txt
LDAPAttribute
Implements Cloneable.
LDAPAttributeSchema
Constructor takes "String[] names" instead of "String name" and
"String[] aliases".
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LDAPAttributeSet
Implements Cloneable and java.util.Set. Removed the methods
made redundant by implementing Set: add(LDAPAttribute attr),
elementAt(), getAttributes(), remove(String name),
removeElementAt(), and size().
LDAPConnection
Removed all bind() signatures which take String instead of
byte[] for password.
Replaced Hashtable as parameter with Map in bind() and
getSaslBindProperties.
The LDAP_PROPERTY_SDK is of type String rather than Float.
LDAP_PROPERTY_PROTOCOL is of type Integer.
setInputStream and setOutputStream throw LDAPException.
Removed setProperty.
Added stopTLS.
LDAPCompareAttrNames
Implements java.util.Comparator instead of LDAPEntryComparator.
LDAPConstraints
Implements Cloneable.
getServerControls renamed to getControls.
setServerControls renamed to setControls.
Added getProperty and setProperty.
getClientControls and setClientControls removed.
LDAPControl
Removed all references to "client controls".
LDAPEntryComparator
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Removed; LDAPCompareAttrNames implements java.util.Comparator
instead.
LDAPException
Renamed errorCodeToString() to resultCodeToString().
Renamed getLDAPResultCode () to getResultCode ().
LDAPListener
Renamed to LDAPMessageQueue.
LDAPMatchingRuleSchema
Combined the two constructors with explicit field parameters.
LDAPModificationSet
Removed (replaced with LDAPModification[] as parameter where
referenced).
LDAPResponseListener
Renamed to LDAPResponseQueue.
LDAPRebind
Renamed to LDAPAuthHandler.
LDAPRebindAuth
Renamed to LDAPAuthProvider.
LDAPSchema
Renamed getAttribute() to getAttributeSchema(),getAttributes()
to getAttributeSchemas(), getObjectClass() to
getObjectClassSchema(), getSyntax() to getSyntaxSchema(),
getSyntaxes() to getSyntaxSchemas(), getDITContentRule () to
getDITContentRuleSchema(), getDITContentRules() to
getDITContentRuleSchemas(), getDITStructureRule() to
getDITStructureRuleSchema(), getDITStructureRules() to
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getDITStructureRuleSchemas(),getMatchingRule() to
getMatchingRuleSchema(), getMatchingRules() to
getMatchingRuleSchemas(), getMatchingRuleUse() to
getMatchingRuleUseSchema(),getMatchingRuleUses() to
getMatchingRuleUseSchemas(),getNameForm() to
getNameFormSchema(), getNameForms() to getNameFormSchemas().
Added add(), modify(), remove(), and saveSchema().
LDAPSchemaElement
Renamed getValue() to toString().
Changed getName() to getNames(), removed getAliases().
Removed add(), modify(), and remove().
LDAPSearchConstraints
Added constructor that takes LDAPConstraints as parameter.
LDAPSearchListener
Renamed to LDAPSearchQueue.
LDAPSearchResults
Does not implement Enumeration.
Removed nextElement().
Renamed hasMoreElements() to hasMore().
Removed sort() (sorting can now be done with classes/interfaces
of the Collections framework now that LDAPAttributeSet
implements Set).
LDAPSocketFactory
Renamed makeSocket() to createSocket().
LDAPUrl
Implements Cloneable.
Renamed getUrl() to toString().
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Added extensions to the constructor that takes all fields
explicitly.
All schema elements
Constructors take a parameter "String[] names" instead of
"String name" and "String[] aliases".
Implementation Considerations
Removed the specification of package name for controls. The
package name may be specified in a follow-on document
describing various controls.
Moved the package name up to section 1.
Added Dependencies.
Serializability
Made the following classes Serializable:
LDAPAttribute
LDAPAttributeSet
LDAPConstraints
LDAPControl
LDAPEntry
LDAPExtendedOperation
LDAPMessage
LDAPModification
LDAPSchema
LDAPSchemaElement
LDAPSearchListener
LDAPSearchResults
LDAPUrl
9.4 Changes from ldap-java-api-14.txt
LDAPAttributeSchema
Changed isModifiable() to isUserModifiable()
LDAPConnection
Added bind() signatures that take byte[] as password parameter,
removed bind() signatures which do not take a version parameter
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Use Hashtable, not Properties, in all SASL bind signatures
Removed setSearchConstraints()
rename() takes newParentdn before deleteOldRdn (one of the
eight signatures had the order reversed)
LDAPException
Defined how the toString method overrides the default toString
behavior
LDAPMatchingRuleSchema
Changed return of getSyntaxString from String[] to String
LDAPUrl
Removed constructor signature which takes "secure" as a
parameter
Removed isSecure()
getFilter() returns null instead of "(objectclass=*)" if no
filter was specified
Examples
Use SASL to bind in synchronous ModifyEmail example and TLS in
asynchronous ModifyEmail example (instead of simple bind)
General
Put methods of LDAPAttributeSchema in alphabetical order
Clarifications and editorial changes
9.5 Changes from ldap-java-api-13.txt
Notice of disconnection, Invalid responses, Level of compatibility
New section
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Result codes
Added INVALID_RESPONSE, AMBIGUOUS_RESPONSE
Removed PARAM_ERROR
LDAPConnection
Removed getAuthenticationPassword()
Added bind() signatures that take a byte array for password
bind() signatures for SASL take an authzId parameter
disconnect() may take an LDAPConstraints parameter
read() throws LDAPException with AMBIGUOUS_RESPONSE if there is
more than one result
LDAPConstraints
Removed getReferralHandler
LDAPRebindAuth
Added a signature of the constructor which takes byte[] as
parameter
getPassword() returns byte[] instead of String
LDAPReferralException
Clarified that getReferrals() must return LDAP URL strings with
the scope rewritten if necessary (for SearchResultReferences on
search continuation).
LDAPDN
Added normalize() and isValid().
LDAPUnsolicitedNotificationListener
The argument to messageReceived() is LDAPExtendedResponse and
not LDAPMessage.
Security Considerations
Added implementation guidelines
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General
All classes and methods in alphabetical order
Many clarifications and editorial changes
9.6 Changes from ldap-java-api-12.txt
Abstract
Removed references to RFC 1823 and to an earlier draft on an
asynchronous interface.
LDAPConnection
Under clone(), added a listing of which methods affect an
individual clone and which ones affect all related clones.
LDAPException
Can take Throwable as root exception argument in an additional
constructor signature. Added getCause() to return the root
exception. Removed reference to LDAP_PARTIAL_RESULTS among
result codes.
LDAPBind
bind() throws LDAPReferralException instead of LDAPException.
LDAPReferralException
Can take Throwable as root exception argument instead of
LDAPException. getFailureException() was removed and replaced
by getCause() in LDAPException. Added getFailedReferral() and
setFailedReferral().
LDAPControl
Removed newInstance(). An implementation of the API can
instantiate a control using the LDAPControl constructor.
Removed a sentence saying that LDAPv2 doesn't support controls.
Referral handling
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Added section outlining the handling of exceptions on
referrals.
References
Added references to RFCs 2222 and 2830.
Host names
May be IPv6 references as well as hostnames or IPv4 addresses.
LDAPMessage
Restored the values of the message types to correspond to the
message type values in ldap-java-api-11.txt.
LDAPEntry
getAttribute returns a single attribute.
Unsolicited notifications in LDAPConnection
Removed getUnsolicitedNotifications and
setUnsolicitedNotifications. Added
addUnsolicitedNotificationListener and
removeUnsolicitedNotificationListener. Added interface
LDAPUnsolicitedNotificationListener.
9.7 Changes from ldap-java-api-11.txt
LDAPConnection
Eliminated the interfaces (LDAPv2 and LDAPv3) that
LDAPConnection implemented.
Eliminated setOption and getOption (there are corresponding
properties in LDAPConstraints and LDAPSearchConstraints).
Removed the signatures of connect which took DN, password, and
protocol version as arguments. The previous signatures were
utility methods that combined connect and bind.
Added a signature of extendedOperation which takes
LDAPConstraints as argument.
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Added isTLS.
Added getProtocolVersion.
Added signatures of abandon which take LDAPConstraints as
argument.
extendedOperation returns LDAPExtendedResponse, not
LDAPExtendedOperation.
Added signatures of SASL bind that take LDAPConstraints as
argument.
Added getSaslBindProperties.
Added getSaslBindCallbackHandler.
Added getUnsolicitedNotifications and
setUnsolicitedNotifications.
The default protocol version to bind with is LDAPv3, not
LDAPv2.
Constants: LDAP_DEREF_NEVER, etc changed to DEREF_NEVER, etc.
Values of DEREF_SEARCHING and DEREF_FINDING corrected to those
of RFC 2251. The values are now defined in
LDAPSearchConstraints instead of in LDAPConnection.
LDAPControl
Added setValue.
LDAPExtendedOperation
Added setValue.
LDAPSearchResultReference
Changed getURLs to getReferrals, which returns String[].
LDAPUrl
Added method isSecure.
Added constructors that take a boolean for isSecure.
LDAPReferralException
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Added getReferralFailureException.
Changed getURLs to getReferrals, which returns String[].
LDAPConstraints
Takes a new interface LDAPReferralHandler as parameter, instead
of LDAPBind and LDAPRebind.
Changed getReferrals to getReferralFollowing.
Changed setReferrals to setReferralFollowing.
LDAPReferralHandler
New common ancestor to LDAPBind and LDAPRebind.
LDAPListener
New common ancestor to LDAPSearchListener and
LDAPResponseListener.
LDAPSearchListener
Implements LDAPListener.
Added signature of isResponseReceived and of getResponse that
takes a message ID as parameter.
Added isComplete.
LDAPResponseListener
Implements LDAPListener.
Added signatures isResponseReceived and getResponse that take a
message ID as parameter.
LDAPBind
Changed the signature of bind to return LDAPConnection instead
of void, and take an LDAP URL string list as argument.
LDAPException
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Defined the values of symbolic result codes generated by the
interface. Added a constructor that takes matchedDN as
parameter.
LDAPMessage
Redefined the values of the message types to correspond to the
message type values in [LDAPv3].
9.8 Changes from ldap-java-api-10.txt
Overview of the LDAP model
Allowed for character set conversion from/to T.61 (in addition
to UTF-8).
LDAPConnection
Added startTLS. Added STRING_FORMAT option to setOption. Added
numerical values to options in setOption and search. Changed
REFERRALS_AUTHENTICATION to REFERRALS_REBIND_PROC. Clarified
that getAuthenticationPassword returns null if no simple bind
has been performed. Added asynchronous methods (from [TLS]).
LDAPConstraints
Default for setHopLimit is 10, not 5.
LDAPUrl
Added getScope and getExtensions.
Schema classes
Added parameters to constructors (aliases, obsolete,
collective).
Various classes
Removed all "synchronized" qualifier on methods. Added a
statement that implementations should ensure thread-safety.
9.9 Changes from ldap-java-api-09.txt
Overview of LDAP API use
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Clarifications were added on the behavior of the SDK for null
values of LDAPConstraints and for a DN.
LDAPAttributeSet
Return type of getAttribute is LDAPAttribute, not
LDAPAttribute[].
LDAPV2
Added convenience method of add that does not take
LDAPConstraints, added read method that does take
LDAPSearchConstraints.
Error Codes
Changed to Result Codes. Added TLS_NOT_SUPPORTED.
LDAPSearchResults
Clarified in declaration that it implements Enumeration.
LDAPV3
Added constants NO_ATTRS and ALL_USER_ATTRS.
Schema classes
Added LDAPDITContentRuleSchema, LDAPDITStructureRuleSchema,
LDAPMatchingRuleUseSchema, LDAPNameFormSchema, LDAPSyntaxSchema.
9.10 Changes from ldap-java-api-08.txt
Standards track
Added intended category to first page header.
SASL references
Removed all references to a Java SASL internet draft.
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LDAPv2
Removed static methods search(LDAPUrl url). The methods are
still present in LDAPConnection.
9.11 Changes from ldap-java-api-07.txt
LDAPAttributeSchema
Removed getAliases() because it is already defined in the
superior class LDAPSchemaElement. Removed getSyntax() which
returned an integer.
LDAPConnection
Added getAuthenticationMethod().
LDAPSchemaElement
Changed getOID() to getID().
9.12 Changes from ldap-java-api-06.txt
LDAPAttributeSchema
Added a constructor that takes the attribute syntax as a String,
an optional superior attribute type, and an optional list of
aliases. Removed previous constructor.
Added getSuperior()and getSyntaxString().
LDAPConnection
Added getInputStream()getOutputStream(), setInputStream()
(1.1.1), and setOutputStream(). They are used when establishing
a security layer with SASL, and may also be used to interpose a
proxy.
LDAPDN
Added equals().
LDAPException
Added additional error codes defined in [URL].
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LDAPMatchingRuleSchema
Added a constructor that takes the attribute syntax as a String
and an optional list of aliases. Removed previous constructor.
LDAPObjectClassSchema
Added a constructor that takes an array of superior object class
names, a type (ABSTRACT, AUXILIARY, or STRUCTURAL), and an
optional list of aliases. Removed previous constructor.
Added getSuperiors()and getType(). Removed getSuperior().
LDAPSchemaElement
Added overloaded methods of add, remove, and modify which take a
DN as parameter, for specifying where in the DIT to determine
the subschemaSubentry for the modification.
Added getAliases(), getQualifier(), getQualiferNames(),
isObsolete(), and setQualifier().
9.13 Changes from ldap-java-api-05.txt
LDAPConnection
Distinguished between getConstraints() and
getSearchConstraints(), and between setConstraints() and
setSearchConstraints().
LDAPConstraints
LDAPBind and LDAPRebind should not be specified in the same
constructor. Added setClientControls().
LDAPSearchConstraints
LDAPBind and LDAPRebind should not be specified in the same
constructor.
LDAPControl
newInstance() is now static.
LDAPv3
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Changed the signature of the bind() methods to match the Java
SASL Internet Draft.
9.14 Changes from ldap-java-api-04.txt
LDAPAttribute
Added getByteValueArray() and getStringValueArray().
LDAPCompareAttrNames
Added getLocale() and setLocale().
LDAPSchemaElement
Added modify().
LDAPSchemaElement
Added fetchSchema(LDAPConnection, String).
9.15 Changes from ldap-java-api-03.txt
LDAPBind
New interface, to support sophisticated reauthentication
mechanisms.
LDAPControl
Added methods register() and newInstance(), to support dynamic
registration and instantiation of server response controls.
LDAPConstraints
Separated interface time limit from server search time limit.
Moved all search-only constraints to LDAPSearchConstraints.
LDAPRebind
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Reverted back to original name, instead of LDAPReauthentication
as it was in the previous draft.
LDAPRebindProc
Reverted back from LDAPCredentials.
LDAPSearchConstraints
Reinstated this class, to represent all constraints applicable
to a search. LDAPConstraints (which it extends) only represents
common constraints for all operations.
LDAPSearchResults
Added getResponseControls().
LDAPv2
Added abandon(). Separated interface time limit from server
search time limit. Changed authenticate() to bind().
LDAPv3
Changed authenticate() to bind().
9.16 Changes from ldap-java-api-02.txt
LDAPSearchConstraints
Renamed to LDAPConstraints, since it can be applied to
operations other than search.
LDAPRebind
Renamed to LDAPReauthentication. Added a definition of its
single method.
LDAPRebindProc
Renamed to LDAPCredentials.
9.17 Changes from ldap-java-api-01.txt
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LDAPAttribute
Added a copy constructor.
Added support for subtypes, and for language subtypes in
particular.
LDAPAttributeSet
LDAPAttributeSet implements Cloneable.
Added getSubset() for subtype support.
LDAPDN
Added support for escaping and unescaping an RDN.
LDAPException
Added the SASL_BIND_IN_PROGRESS error code.
LDAPSearchResults
Added getCount(), to report the number of results returned.
LDAPConnection
Added a signature that passes LDAPConstraints to read(LDAPURL).
LDAPv2
Added signatures that pass LDAPConstraints to the following
methods:
add()
compare()
modify()
read()
rename()
LDAPv3
Removed "Preferred Language", because it has been dropped from
the extension work.
Added a signature that passes LDAPConstraints to rename().
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