5 CMP Entity Beans

This chapter demonstrates simple Container Managed Persistence (CMP) EJB development with a basic configuration and deployment. Download the CMP entity bean example (cmpapp.jar) from the OC4J sample code page at on the OTN Web site.

This chapter demonstrates the following:

• Persistence Fields

• Configuring Lazy Loading on CMP Entity Bean Finder Methods

• Conversion of CMP Types to Database Types

See Chapter 8, "BMP Entity Beans", for an example of how to create a simple bean-managed persistent entity bean. For a description of persisting object relationships between EJBs, see Chapter 6, "Entity Relationship Mapping".