Hibernate EntityManager implements:

• The standard Java Persistence management API
• The standard Java Persistence Query Language
• The standard Java Persistence object lifecycle rules
• The standard Java Persistence configuration and packaging

Hibernate EntityManager wraps the powerful and mature Hibernate Core. You can fall back to Hibernate native APIs, native SQL, and native JDBC whenever necessary.

The Hibernate Java Persistence provider is the default persistence provider of the JBoss EJB 3.0 implementation and bundled with the JBoss Application Server.