Jul 202016

ADM

JPA Tutorials

 

 

JPA Tutorials - java

 

The Java Persistence API (JPA) is a Java specification for accessing, persisting, and managing data between Java objects / classes and a relational database.

The JPA is just a specification and can’t any operations by itself.

Features

  • JPA defines a runtime EntityManager API for processing queries and transaction on the objects against the database.
  • JPA defines an object-level query language, JPQL, to allow querying of the objects from the database.

There are some open-source and commercial JPA implementations, like:

  • Hibernate
  • Toplink
  • OpenJPA
  • DataNucleus
  • EclipseLink

 

EclipseLink

References