A composite repository can handle item descriptor inheritance only for its primary item descriptors. For example, suppose you have a user
composite item descriptor. Its primary item descriptor is named person
and is part of an LDAP repository. The contributing item descriptor is named user
and is part of a SQL repository. The user
item descriptor has a subtype named broker
. The composite items have access to the properties of the person
item descriptor and the user
item descriptor, but not to properties that exist only in the broker
item descriptor.