Hi all !

I'm dealing with a composite primary key, and as long as I know Hibernate do not recommend it, but if I use a surrogate primary key I have to maintain the behavior of the real primary key (not the same values in three fields), so, I need to define a unique index above those fields, or maybe there are some annotations that let me do it ?

Or maybe I can use hibernate with this composite primary key without any problems ?

Any idea is welcome, and thanks in advance !!!

Follow this link for Hibernate 3.6 reference manual information on identifiers. Section 5.1.2.1. "Composite identifier" is helpful.

We are currently porting our JDO ORM layer to Hibernate and using Composite identifiers extensively. Hibernate supports Composite identifiers but it can be challenging. In my opinion any real world database must have composite keys.

Hibernate deals really nicely with associative entities.

Good luck!