EclipseLink Weblogic persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/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">
    <persistence-unit name="testJPA" transaction-type="JTA">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        
        <jta-data-source>jdbc/OracleDS</jta-data-source>
        <non-jta-data-source>jdbc/OracleDS</non-jta-data-source>
        
        
        <properties>
            <property name="eclipselink.target-server" value="WebLogic_10"/>
             <property name="eclipselink.logging.level" value="FINE"/>
            <property name="eclipselink.jdbc.batch-writing" value="JDBC"/>
        </properties>
        
    </persistence-unit>
</persistence>

Oracle JPA Tutorial
http://www.oracle.com/technology/pub/articles/cioroianu-eclipse-jpa.html

Eclipse JPA Tutorial
http://wiki.eclipse.org/EclipseLink/Examples/JPA/WebLogic_Web_Tutorial#Tutorial_Source