<hibernate-mapping>
  <class name="eg.Cat" table="CATS" discriminator-value="C">

    <id name="id" column="uid" type="long">
      <generator class="hilo"/>
    </id>

    <discriminator column="subclass" type="character"/>

    <property name="birthdate" type="date"/>
    <property name="color" not-null="true"/>
    <property name="sex" not-null="true" update="false"/>
    <property name="weight"/>

    <many-to-one name="mate" column="mate_id"/>
    <set name="kittens">
      <key column="mother_id"/>
      <one-to-many class="eg.Cat"/>
    </set>

    <subclass name="eg.DomesticCat" discriminator-value="D">

     <property name="name" type="string"/>
    </subclass>
  </class>


<class name="eg.Dog">
<!-- mapping for Dog could go here -->
</class>
</hibernate-mapping>