Hi every one,

I have been working in an application where most of table have composite keys, where some part is foreign keys and some should be auto generated keys. I have looked into hibernate, it does provide very powerful ID generators for surrogate Keys, but I am unable to find a way for composite keys.

Lets have a simpler view..............

Example:

id1 - fk
id2 - fk
id3 - auto generated

Hibernate gurus should have a solution for this situation. I will be thankful for your kind help and direction.

Unfortunately it is so that composite keys must always be assigned by the application. http://docs.jboss.org/hibernate/stable/ ... ompositeid

Is there anyway, we can extend IdentifierGenerator and customize the identity generation mechanism??

You can create custom identifier generators, but Hibernate doesn't use generators for composite keys so it will not help you. But since the id3 is auto-generated it should unique by itself. Why not simply use id3 as the id?