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is EJB,s knowledge Must?

v learner
Greenhorn

Joined: Sep 12, 2012
Posts: 1
What problem does developer has to face when he has no idea about EJB but he is aware of struts and Spring?
Michael A Hoffman
Ranch Hand

Joined: Mar 04, 2009
Posts: 37

Are you talking about EJB 2 or 3? I still see some legacy applications using EJB 2, including IBM products like WebSphere Commerce. EJB 3 is seeing some adoption, but many of the applications I use just leverage JPA without EJB 3. I still recommend understanding the core concepts of EJBs as they are useful patterns. This includes understanding the difference between entity and session beans, transaction management, etc.
 
It is sorta covered in the JavaRanch Style Guide.
 
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