How to design inheritance for EJB, especially enity beans
posted 14 years ago
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.