Jakarta Persistence

Jakarta Persistence (JPA; formerly Java Persistence API) is a Jakarta EE application programming interface specification that describes the management of relational data in enterprise Java applications.

Persistence in this context covers three areas:

The API itself, defined in the jakarta.persistence package (javax.persistence for Jakarta EE 8 and below)
The Jakarta Persistence Query Language (JPQL; formerly Java Persistence Query Language)
Object/relational metadata

The reference implementation for JPA is EclipseLink.

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