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Sams Teach Yourself EJB in 21 Days by Krishna Kothapalli, Ragae Ghaly

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Why EJB?

The EJB architecture allows enterprise applications to be portable by running on a J2EE-compliant application server. An EJB application can be partitioned in a more usable, flexible, and expandable fashion. For example, new clients to access legacy systems can be easily built to meet user requirements. Moreover, the EJB architecture helps create a service-based model in which services are location-transparent components that can be delivered to their target clients. EJBs are highly reusable components, and represent the next step in the progression of Java technology for the development of application platforms capable of supporting mission-critical, component-based, enterprise applications. EJB components allow the development of business ...

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