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Background documentation Enterprise Entity Beans Locate the document in its SAP Library structure

Enterprise entity beans are the J2EE standard for Java object persistence, and present an alternative to Java Data Objects (JDO). Each entity bean instance represents a row of a table stored in the underlying relational database. The entity beans are:

·        with bean-managed persistence (BMP)

·        with container-managed persistence (CMP)

Unlike JDO, enterprise beans run in a managed environment only. The SAP J2EE Engine provides the EJB Container Service, which enables the runtime execution of the beans.

You can find a brief comparison between JDO and CMP entity beans in JDO Programming Models.

For more information about entity beans, see Developing Entity Beans.

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