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EclipseLink/UserGuide/JPA/Basic JPA Development/Entities/Creating and Configuring Entities

EclipseLink JPA


Creating and Configuring Entities

Every entity must have a persistent identity, which is an equivalent of a primary key in a database table that stores the entity state.

By default, the EclipseLink persistence provider assumes that each entity has at least one field or property that serves as a primary key.

You can generate and/or configure the identity of your entities by using the following annotations:

You can also use these annotations to fine-tune how your database maintains the identity of your entities.



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Version: 2.2.0 DRAFT
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