<?xml version="1.0"?>
<project name="HibernateTool Generator" default="hbm2x">
  <property name="my.root.dir" value="${basedir}"/>
  <property name="src.dir" value="${basedir}/src"/>
  <property name="hbm.cfg.dir" value="${basedir}/src"/>
  <path id="classpath">
    <pathelement location="${basedir}"/>
    <fileset dir="${basedir}/lib">
      <include name="**/*.jar"/>
    </fileset>
  </path>
  <!-- =================================================================== -->
  <!-- Generates java source code from hibernate mappings (*.hbm.xml)      -->
  <!-- =================================================================== -->
  <target name="hbm2x" description="Generate java source code from hibernate mappings">
    <taskdef name="hibernatetool" classname="org.hibernate.tool.ant.HibernateToolTask" classpathref="classpath"/>
    <hibernatetool destdir="${basedir}/src">
      <configuration configurationfile="${hbm.cfg.dir}/hibernate-iocm.cfg.xml">
        <fileset dir="${basedir}/src">
          <!-- A configuration can take a configurationfile and/or a fileset of hbm.xml's -->
          <include name="**/*.hbm.xml"/>
        </fileset>
      </configuration>

      <!-- code generation -->
      <hbm2java generics="true"/>

      <!-- code generation with custom templates (yes, can run each task more than once! -->
      <hbm2java templatespath="${basedir}/velocity/dao"/>

      <!-- Generate documentation -->
      <hbm2doc/>

      <!-- Generate DAOs -->
      <!--
      <hbm2dao/>
      -->

      <!-- Generate JSF -->
      <!--
      <hbm2jsf/>
      -->

      <!-- Schema export -->
      <hbm2ddl drop="false" format="true" outputfilename="db-init.sql"/>

    </hibernatetool>
  </target>
</project>

public class Customer extends Persistent {
// persistent POJO class
}

public class Dao<T extends Persistent> {
  public List<T> list () { ... }
  // etc
}

public class DaoFactory {
  public Dao<T> getDao (<T extends Persistent> pojoClass) {
    return new Dao<pojoClass>() ;
  }
}