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

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Using JNDI in J2EE Applications

JNDI is a fundamental service to all J2EE applications. One key target is the isolation of the development of J2EE component code from the deployment environment. This allows an application component to be customized without the need to access or change its source code.

JNDI defines a logical namespace (directory) that application components (such as EJBs, servlets, JavaServer Pages [JSPs], and JDBC) can use to name resources, components, and other data. The namespace is provided to a component by its container, which executes the component. Typically, a component has a deployment descriptor that contains, among other data, information about the logical names and types of resources that the component references. ...

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