build-with-jpa.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<project basedir="." default="deploy" name="build-with-jpa">

  <!-- Importing standard build.xml file -->
  <import file="./simple.xml"/>

  <property name="meta.dir" value="META-INF"/>

  <!-- Path for enhancing the Java Persistence API (JPA) classes -->
  <path id="jpa.enhancement.classpath">
    <path refid="compile.classpath"/>
    <pathelement location="${classes.dir}"/>
  </path>

  <!-- Compile time enhancement for JPA classes -->
  <target name="enhance" depends="compile">

    <!-- Create a directory to hold persistence.xml -->
    <mkdir dir="${classes.dir}/${meta.dir}"/>

    <!-- Copy persistence.xml file from src/META-INF dir -->
    <copy includeemptydirs="false" todir="${classes.dir}/${meta.dir}">
      <fileset dir="src/${meta.dir}"/>
    </copy>

    <!-- define the openjpac task -->
    <taskdef name="openjpac" classname="org.apache.openjpa.ant.PCEnhancerTask">
        <classpath refid="jpa.enhancement.classpath"/>
    </taskdef>

    <!-- invoke the enhancer -->
    <openjpac>
        <classpath refid="jpa.enhancement.classpath"/>
    </openjpac>
    <echo message="Enhancing complete."/>
  </target>

  <!-- Overriding the 'test-compile' target from simple.xml -->
  <target name="test-compile" depends="enhance"
          description="Compiles all JUnit test files">
    <ant target="simple.test-compile"/>
  </target>

  <!-- Overriding the 'test' target from simple.xml -->
  <target name="test" depends="enhance"
          description="Executes the JUnit test suite">
    <ant target="simple.test"/>
  </target>

  <!-- Overriding the 'war' target from simple.xml -->
  <target name="war" depends="enhance"
          description="Deploys the web application to Tomcat (default target)">
    <ant target="simple.war"/>
  </target>

</project>