Oracle Fusion Middleware Administration Guide for Oracle Directory Server Enterprise Edition

Creating Object Classes

The cn=schema entry has a multivalued attribute, objectClasses, that contains definitions of each object class in the directory schema. You can add to those definitions by using the ldapmodify(1) command.

New object class definitions, and changes that you make to user-defined object classes, are saved in the file 99user.ldif.

If you are creating several object classes that inherit from other object classes, you must create the parent object classes first. If your new object class uses custom attributes, you must also define those first.

For each object class definition, you must provide at least an OID. Consider using at least the following elements for new object classes:

ProcedureTo Create an Object Class

You can use DSCC to perform this task. For information, see Directory Service Control Center Interface and the DSCC online help.

  1. Prepare your object class definition according to the syntax specified in RFC 4517.

  2. Use the ldapmodify(1) command to add your object class definition.

    Notice that Directory Server adds X-ORIGIN 'user defined' to the definition that you provide.

Example 11–4 Creating an Object Class

The following example adds a new object class using the ldapmodify command:

$ cat blogger.ldif 
dn: cn=schema
changetype: modify
add: objectClasses
objectClasses: ( 
 NAME 'blogger' 
 DESC 'Someone who has a blog' 
 SUP inetOrgPerson 
 MAY blog )

$ ldapmodify -D cn=admin,cn=Administrators,cn=config -w - -f blogger.ldif
Enter bind password: 
modifying entry cn=schema


In a production environment, you would provide a valid, unique OID, not