<mapping>

    <class name="A">
        <map-to xml="A"/>

        <field name="B" type="B">
            <bind-xml name="IWantB"/>
        </field>
    </class>

    <class name="B">
    </class>

    <class name="C" extends="B">
        <field name="name" type="string"/>
    </class>

</mapping>
