<!-- Test case taken from old tutorial example, using  base-extends for
  multiple subclasses -->
<binding>
  <mapping name="customer" class="simple.Customer10">
    <structure field="identity"/>
    <value name="street" field="street" usage="optional"/>
    <value name="city" field="city" usage="optional"/>
    <value name="state" field="state" usage="optional"/>
    <value name="zip" field="zip" usage="optional"/>
    <value name="phone" field="phone" usage="optional"/>
  </mapping>
  <mapping class="simple.Identity10" abstract="true">
    <value name="cust-num" field="customerNumber"/>
  </mapping>
  <mapping name="person" class="simple.Person10" extends="simple.Identity10">
    <structure map-as="simple.Identity10"/>
    <value name="first-name" field="firstName"/>
    <value name="last-name" field="lastName"/>
  </mapping>
  <mapping name="company" class="simple.Company10" extends="simple.Identity10">
    <value name="name" field="name"/>
    <value name="tax-id" field="taxId"/>
    <structure map-as="simple.Identity10"/>
  </mapping>
</binding>
