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J2EE™ Applications and BEA™ WebLogic Server™ by Sandra L. Emerson, Rob Woollen, Michael Girdley

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Enterprise JavaBeans Overview

JavaSoft defined the Enterprise JavaBeans (EJB) specification to give Java developers a foundation for building distributed business components. EJBs are Java components that implement business logic and follow a contract designated in the EJB specification. EJBs live inside an EJB container, which provides a set of standard services, including transactions, persistence, security, and concurrency. This means that the application programmer is freed from developing these services from scratch.

EJB also provides portability for its components. Any EJB that conforms to the EJB 1.1 or EJB 2.0 specifications works correctly in the WebLogic Server. While the WebLogic Server supports both EJB 1.1 and EJB 2.0, these chapters ...

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