Hi everybody,

I would like to map a one-to-one relation using an unique key, not the primary key. As I read in some other posts in this forum, Hibernate 2.1 introduces foreign key mapping.

Is there any appropriate way to implement such a mapping in Hibernate 2.0.3? or do I better wait and move on to Hibernate 2.1.

Thanks.
Pei

It depends on which direction. You can use many-to-one for one direction but you cannot do the other directly. I supose you could also setup a one-to-many and another method (one-to-one signature not mapped) which uses the one-to-many to provide the persistence hook. When you go to 2.1 you drop the one-to-many mapping for the one-to-one with property-ref value.