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| Class Summary | |
| AbstractEnterpriseBean | Superclass for all EJBs. |
| AbstractJmsMessageDrivenBean | Convenient superclass for JMS MDBs. |
| AbstractMessageDrivenBean | Convenient superclass for MDBs. |
| AbstractSessionBean | Superclass for all session beans, not intended for direct client subclassing. |
| AbstractStatefulSessionBean | Convenient superclass for stateful session beans. |
| AbstractStatelessSessionBean | Convenient superclass for stateless session beans (SLSBs), minimizing the work involved in implementing an SLSB and preventing common errors. |
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