Hibernate之映射继承关系（五） （2）

<hibernate-mapping >
      <class name="mypack.ClassA" table="TABLE_A" discriminator-value="A" >
      <id name="id" type="long" column="ID">
        <generator class="increment"/>
      </id>
      <discriminator column="A_TYPE" type="string"  />  
      <property name="a1" type="string" column="A1" />

      <subclass name="mypack.ClassC" discriminator-value="C" >
         <property name="c1" column="C1" type="string" />
      </subclass>

      <subclass name="mypack.ClassD" discriminator-value="D" >
      <property name="d1" column="D1" type="string" />
 
      <subclass name="mypack.ClassG" discriminator-value="G" >
      <property name="g1" column="G1" type="string" />
      </subclass>
        
      <subclass name="mypack.ClassH" discriminator-value="H" >
      <property name="h1" column="H1" type="string" />
      </subclass>
      </subclass>
      </class>
      </hibernate-mapping>

<hibernate-mapping >

      <class name="mypack.ClassB" table="TABLE_B">
      <id name="id" type="long" column="ID">
      <generator class="increment"/>
      </id>
      <property name="b1" type="string" column="B1" />

      <joined-subclass name="mypack.ClassE"  table="TABLE_E">
         <key column="B_ID" />
         <property name="e1" column="E1" type="string" />
         <property name="e2" column="E2" type="string" />
         <property name="e3" column="E3" type="string" />
         <property name="e4" column="E4" type="string" />
         <property name="e5" column="E5" type="string" />
         <property name="e6" column="E6" type="string" />
      </joined-subclass >

      <joined-subclass name="mypack.ClassF"  table="TABLE_F">
         <key column="B_ID" />
         <property name="f1" column="F1" type="string" />
         <property name="f2" column="F2" type="string" />
         <property name="f3" column="F3" type="string" />
         <property name="f4" column="F4" type="string" />
         <property name="f5" column="F5" type="string" />
         <property name="f6" column="F6" type="string" />
      </joined-subclass >
      </class>
      </hibernate-mapping>