amar
Joined: 25 Apr 2006
Posts: 179
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 Posted: Wed May 03, 2006 10:08 am Post subject: Enterprise Java Beans, A Primer: Part 2, Implement Your Firs |
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One of the hardest steps for beginning J2EE developers to take is to build their first EJBs. This article will set aside those fears and help you venture into the world of EJB development.
In order to build and run an EJB, you must install a J2EE-compliant EJB container. The reference implementation EJB container can be found in the J2EE development kit that’s obtainable from Sun. You can download the latest version from http://java.sun.com/j2ee.
Developing an EJB involves most of the same steps and concepts that you have become familiar with when developing plain old Java objects (POJOs), with a few minor differences.A stateful session bean maintains a conversational state with one client for the duration of a single session. This implies that the stateful session bean can maintain instance variables across multiple invocations from one client during a single session.
for read more information:
http://www.sitepoint.com/article/implement-first-ejbs |
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