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Java EE 7 Developer Handbook by Peter A. Pilgrim

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Chapter 3. Enterprise Java Beans

The Reverend, Jesse Jackson said, "I am not a perfect servant. I am a public servant. In 1999, Enterprise Java Beans (EJBs) first appeared in the J2EE 1.0 specification. There were these heavyweight EJB components that ran inside an EJB container. EJBs were the original endpoints of the Java enterprise platform. The basic idea was that a client application would remotely make calls to a remote EJB endpoint in order to do some unit of work. The architecture was decidedly pre-cloud computing and client server. J2EE EJBs were either stateless or stateful; they could also be entity beans; and finally there was a concept of endpoints designed for sending and receiving data inside message-oriented systems, which are ...

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