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Inheritance in Java, J2EE

 
Greenhorn
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How to design inheritance for EJB, especially enity beans
 
Ranch Hand
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Inheritance in EJBs is not straightforward ... the main thing to keep in mind is that your bean implementation class can inherit from a base class ... however, your home and remote interfaces generally cannot. Typically, I use inheritance in EJBs only to provide some default implemenation of methods (such as the setEntityContext()), ejbActivate(), ejbPassivate(), etc. In this sense, this pattern is more of an adapter.
 
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