How frequently should I create an EntityManager?

Question

I have an EntityManagerFactory for which I can create one (or multiple) EntityManager instances. I\'m using a Servlet environment, and I\'ve got on

Answer 1

we do one injected entity manager for each slsb, - and the slsb is itself accessed via a delegate, of which there is one per session, which looks up the local/remote interface. Using ejb3.0.