serialization/src/META-INF/persistence.xml

<?xml version="1.0" encoding="UTF-8" ?>
<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_2_0.xsd"
        version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">
    <persistence-unit name="order" transaction-type="RESOURCE_LOCAL">
        <class>model.Order</class>
        <class>model.OrderLine</class>
        <class>model.Customer</class>
        <shared-cache-mode>NONE</shared-cache-mode>
        <properties>
            <!-- Change this to access your own database. -->
            <!--property name="javax.persistence.jdbc.driver" value="org.hsqldb.jdbcDriver" />
            <property name="javax.persistence.jdbc.url" value="jdbc:hsqldb:mem:test" />
            <property name="javax.persistence.jdbc.user" value="sa" />
            <property name="javax.persistence.jdbc.password" value="" /-->
            <property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
            <property name="javax.persistence.jdbc.url" value="jdbc:h2:mem:test" />
            <property name="javax.persistence.jdbc.user" value="sa" />
            <property name="javax.persistence.jdbc.password" value="" />
            <!-- property name="javax.persistence.jdbc.driver" value="oracle.jdbc.OracleDriver" />
            <property name="javax.persistence.jdbc.url" value="jdbc:oracle:thin:@ottvm073:1521:orcl" />
            <property name="javax.persistence.jdbc.user" value="jsutherl" />
            <property name="javax.persistence.jdbc.password" value="password" /-->
            <property name="eclipselink.jdbc.cache-statements" value="true" />
            <property name="eclipselink.jdbc.batch-writing" value="jdbc" />
            <property name="eclipselink.ddl-generation" value="create-tables" />
            <property name="eclipselink.logging.level" value="off" />
        </properties>
    </persistence-unit>
</persistence>