[jboss-user] [JBoss Seam] - how can I do optimistic locking with crud framework?

[cja987]

Newbie question alert... I'm working with the contactlist sample app (works fine now that I'm back to using myfaces) and I want to prevent lost updates.  I added a version field to Contact, gave it a @Version annotation, and a getter/setter pair, and it seems to get updated by Hibernate as expected.  But when I try overlapping edits, I just can't seem to get it to throw an OptimisticLockException, the last commit still wins every time.

Am I naively assuming that just adding a @Version field turns optimistic lock enforcement on automatically?  Is there something else I need to do to make optimistic locking work?

I'm not quite sure, when and if I do get it working, what the practice for handling such an exception is either.  I suppose I can hack in some kind of redirect.


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