src/main/resources/META-INF/persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
    <persistence-unit name="betriebstagebuch">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <non-jta-data-source>java:comp/env/jdbc/okBetriebstagebuchDS</non-jta-data-source>
        <class>org.eclipse.openk.elogbook.persistence.model.RefVersion</class>
        <class>org.eclipse.openk.elogbook.persistence.model.RefBranch</class>
        <class>org.eclipse.openk.elogbook.persistence.model.RefGridTerritory</class>
        <class>org.eclipse.openk.elogbook.persistence.model.RefNotificationStatus</class>
        <class>org.eclipse.openk.elogbook.persistence.model.TblNotification</class>
        <class>org.eclipse.openk.elogbook.persistence.model.TblResponsibility</class>
        <exclude-unlisted-classes>false</exclude-unlisted-classes>
        <properties>
        </properties>
    </persistence-unit>
    <persistence-unit name="betriebstagebuchORA">
        <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
        <non-jta-data-source>java:comp/env/jdbc/okBetriebstagebuchDSO</non-jta-data-source>
        <class>org.eclipse.openk.elogbook.persistence.model.RefVersion</class>
        <class>org.eclipse.openk.elogbook.persistence.model.RefBranch</class>
        <class>org.eclipse.openk.elogbook.persistence.model.RefGridTerritory</class>
        <class>org.eclipse.openk.elogbook.persistence.model.RefNotificationStatus</class>
        <class>org.eclipse.openk.elogbook.persistence.model.TblNotification</class>
        <class>org.eclipse.openk.elogbook.persistence.model.TblResponsibility</class>
        <exclude-unlisted-classes>false</exclude-unlisted-classes>
        <properties>
            <property name="hibernate.dialect" value="org.hibernate.dialect.OracleDialect" />
            <property name="eclipselink.target-database" value="Oracle"/>
        </properties>
    </persistence-unit>
</persistence>