public class Phone {
...
   private String area;
   private String switch;
   private String number;
...
}

<class name="Person " table="PERSON">
...
   <component name="homePhone" class="Phone">
      <property name="area" column="HOME_PHONE_AREA_CODE"/>
      <property name="switch" column="HOME_PHONE_SWITCH"/>
      <property name="number" column="HOME_PHONE_LINE_NUMBER"/>
   </component>
   <component name="cellPhone" class="Phone">
      <property name="area" column="CELL_PHONE_AREA_CODE"/>
      <property name="switch" column="CELL_PHONE_SWITCH"/>
      <property name="number" column="CELL_PHONE_LINE_NUMBER"/>
   </component>
   <component name="workPhone" class="Phone">
      <property name="area" column="WORK_PHONE_AREA_CODE"/>
      <property name="switch" column="WORK_PHONE_SWITCH"/>
      <property name="number" column="WORK_PHONE_LINE_NUMBER"/>
   </component>
...
</class>