How do I override the GenerationType strategy using Hibernate/JPA annotations?

Question

I\'m considering using Annotations to define my Hibernate mappings but have run into a problem: I want to use a base entity class to define common fields (including the ID

Answer 1

In the code above, it looks like you're mixing annotations on fields (superclass) and methods (subclass). The Hibernate reference documentation recommends avoiding this, and I suspect it might be causing the problem. In my experience with Hibernate, it's safer and more flexible to annotate getter/setter methods instead of fields anyway, so I suggest sticking to that design if you can.

As a solution to your problem, I recommend removing the id field from your Base superclass altogether. Instead, move that field into the subclasses, and create abstract getId() and setId() methods in your Base class. Then override/implement the getId() and setId() methods in your subclasses and annotate the getters with the desired generation strategy.

Hope this helps.