EclipseLink JPA Persistence Provider - EJB 3.0 Database Persistence with Oracle Fusion Middleware 11g - page 56

• EclipseLink JPA
° Metadata annotations
° XML mapping metadata
° Entity identity
° Entity relationships
• EclispeLink JPA persistence unit properties
Specifying the EclipseLink persistence
provider
The minimum required configuration to start using the EclipseLink persistence
provider is to specify the persistence provider in the configuration file persistence.
xml . The persistence provider is specified in the META-INF/persistence.xml
configuration file in the provider sub-element of the persistence-unit element.
<?xml version="1.0" encoding="Cp1252" ?>
<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://
java.sun.com/xml/ns/persistence/persistence_1_0.xsd"
xmlns="http://java.sun.com/xml/ns/persistence"
version="1.0">
<persistence-unit name="em">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<jta-data-source>java:/app/jdbc/jdbc/OracleDBConnectionDS</jta-data-
source>
<class>model.Catalog</class>
<properties>
...
</properties>
</persistence-unit>
</persistence>