6 Understanding Mappings
This chapter introduces and describes mappings. EclipseLink can transform data between an object representation and a representation specific to a data source. This transformation is called mapping and it is the core of EclipseLink projects.
A mapping corresponds to a single data member of a domain object. It associates the object data member with its data source representation and defines the means of performing the two-way conversion between object and data source.
This chapter includes the following sections:
