Understanding EclipseLink, 2.7
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5 Understanding Descriptors

This chapter introduces and describes descriptors. EclipseLink uses descriptors to store the information that describes how an instance of a particular class can be represented by a data source. Descriptors own mappings that associate class instance variables with a data source and transformation routines that are used to store and retrieve values. As such, the descriptor acts as the connection between a Java object and its data source representation.

This chapter includes the following sections: