No question too stupid right :)
Came across this on wikipedia
The Java Persistence API replaces the persistence solution of EJB 2.0 CMP (Container Managed Persistence).
My understanding was the CMP is still there i.e Pooling,Transactions etc can be done via CMP where as JPA is ORM for me. I did not think there are even same thing . I thought may be CMP VS JTA might make sense but obviously not.
I know how off track I am but thats why I am here may some can help me get things in perspective.