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Difference between revisions of "EclipseLink/Examples/JPA/NativeMetadata"
< EclipseLink | Examples | JPA
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| − | You may use the org.eclipse.persistence.jpa.JpaHelper class to obtain an EntityManager. | + | [[Category:EclipseLink/Examples/JPA|NativeMetadata]] |
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| + | You may use the [http://www.eclipse.org/eclipselink/api/1.2/org/eclipse/persistence/jpa/JpaHelper.html <code>org.eclipse.persistence.jpa.JpaHelper</code>] class to obtain an EntityManager. | ||
== Using a server session == | == Using a server session == | ||
Revision as of 11:56, 26 November 2009
You may use the org.eclipse.persistence.jpa.JpaHelper class to obtain an EntityManager.
Using a server session
EntityManagerFactory emf = org.eclipse.persistence.jpa.JpaHelper.createEntityManagerFactory(serverSession); EntityManager em = emf.createEntityManager();
Using a sessions.xml file
If you want to use EclipseLink or Oracle TopLink's native XML metadata within EclipseLink JPA this can be accomplished using API:
EntityManagerFactory emf = org.eclipse.persistence.jpa.JpaHelper.createEntityManagerFactory(sessionName); EntityManager em = emf.createEntityManager();
or through the use of persistence unit properties:
TODO: Example of XML property config
TODO: Example of property config using properties map passed to Persistence.createEntityManagerFactory("pu-name", properties)