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Sun OpenDS Standard Edition 2.2 Architectural Reference

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Document Information

1.  Introduction

2.  The Directory Server Access Control Model

3.  Understanding the Directory Server Schema

Understanding Matching Rules

Matching Rule Description Format

Commonly Used Matching Rules

Relative Time Matching Rules

Partial Date Or Time Matching Rules

Value Normalization

Understanding Attribute Syntaxes

The Attribute Syntax Description Format

Commonly Used Attribute Syntaxes

The Pattern-Matching Syntax Extension

The Enumeration Syntax Extension

Substitution Syntax Extension

Understanding Attribute Types

Attribute Type Description Format

Attribute Type Inheritance

Attribute Type Implementation

Understanding Object Classes

Object Class Description Format

Object Class Kinds

Object Class Inheritance

Directory Server Object Class Implementation

Understanding Name Forms

Name Form Description Format

Understanding DIT Content Rules

DIT Content Rule Description Format

DIT Content Rule Implementation

Understanding DIT Structure Rules

DIT Structure Rule Description Format

DIT Structure Rules and Multiple Schemas

Understanding Matching Rule Uses

4.  Directory Server Index Databases

5.  Understanding Directory Server Plug-Ins

6.  Directory Server Replication

7.  Directory Server Root Users and the Privilege Subsystem

8.  Supported Controls and Operations

The Pattern-Matching Syntax Extension

The X-PATTERN attribute syntax extension can be used to define new string syntaxes with values restricted by one or more regular expressions. The following example adds an X-PATTERN attribute syntax to the schema.

$ ldapmodify -p 1389 -h localhost -D "cn=Directory Manager" -w password
dn: cn=schema
changetype: modify
add: ldapsyntaxes
ldapSyntaxes: ( DESC 'Host and Port in the format of HOST:PORT'
  X-PATTERN '^[a-zA-Z][a-zA-Z0-9-]+:[0-9]+$' )

This new syntax can be used to define attributes and object classes, as shown in the following example.

$ ldapmodify -p 1389 -h localhost -D "cn=Directory Manager" -w password
dn: cn=schema
changetype: modify
add: attributetypes
attributetypes: ( NAME 'example-attr-regex' SYNTAX )
add: objectclasses
objectclasses: ( NAME 'exampleOCregex' SUP top AUXILIARY MUST

Values for example-attr-regex attributes must match the defined pattern, or the server rejects them. The following attribute fits pattern defined in the example syntax, so the server accepts it:

example-attr-regex: localhost:389

The following attribute is rejected because it does not include the required colon and numeric string:


The following attribute is rejected because it contains periods (.), which are not specified as part of the HOST component: