Sun Java Communications Suite 5 Schema Reference

Definition

LDAP Schema 1 object class in support of Delegated Administrator for Messaging. If you are still using LDAP Schema 1, then this object is still valid; otherwise it is deprecated.

This object class is a marker to identify the subtree where the uniqueness of uid should be enforced. The uid uniqueness plug-in used this to determine the scope or sphere of influence for enforcing uniqueness.