The J2EE™ Tutorial Second Edition

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J2EE 1.4 Platform APIs

Figure 1-7 illustrates the availability of the J2EE 1.4 platform APIs in each J2EE container type. The following sections give a brief summary of the technologies required by the J2EE platform and the J2SE enterprise APIs (JDBC and JNDI) that would be used in J2EE applications.

Figure 1-7. J2EE Platform APIs

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Enterprise JavaBeans Technology

An Enterprise JavaBeans™ (EJB™) component, or enterprise bean, is a body of code having fields and methods to implement modules of business logic. You can think of an enterprise bean as a building block that can be used alone or with other enterprise beans to execute ...

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