[jboss-user] [EJB 3.0] - difference between @Version and EntityManager.lock

[adamzrk]

Hi

 What is the difference between @Version and EntityManager.lock method?
When I use @version then If one client is updating entity the version attribute is being increased and if another client wants to update the same entity the OptimisticLockException is thrown - there is no wainting for the second client?
What is the situation with the lock method?

Regards
Adam

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