spring-jdo2/src/test/resources/META-INF/package.jdo

<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE jdo PUBLIC
  "-//Sun Microsystems, Inc.//DTD Java Data Objects Metadata 2.0//EN"
  "http://java.sun.com/dtd/jdo_2_0.dtd">

<jdo>
  <package name="org.apache.archiva.redback.components.jdo">
    <class name="Basic" detachable="true" identity-type="application" objectid-class="javax.jdo.identity.LongIdentity">
      <field name="id" primary-key="true" value-strategy="native"/>
      <field name="name"/>
      <field name="description"/>
    </class>
    <class name="Parent" detachable="true" identity-type="application" objectid-class="javax.jdo.identity.LongIdentity">
      <field name="id" primary-key="true" value-strategy="native"/>
      <field name="price"/>
      <field name="name"/>
      <field name="description"/>
      <field name="children" default-fetch-group="true">
        <collection element-type="Child" dependent-element="true"/>
        <join/>
      </field>
    </class>
    <class name="Child" detachable="true" identity-type="application" objectid-class="javax.jdo.identity.LongIdentity">
      <field name="id" primary-key="true" value-strategy="native"/>
      <field name="name"/>
      <field name="description"/>
    </class>
  </package>
</jdo>