I can't remember if this was brought up at the JavaOne JPA 2.1 talk or not.
Every JPA project I work on I really miss the lack of the ability to specify
a primary key generator of my own devising. I can do it in Hibernate, I can
do it in EclipseLink, and I can do it in OpenJPA, but the way I do it in all
of them is different.
If this is on the roadmap already, my apologies.
Best,
Laird
--
http://about.me/lairdnelson