Dwr convert and extends

Hi!

i have this class:

public class BaseEntity {
  private int id;
  private String name;
}

and this class:

public class Currency extends BaseEntity {
  private String code;
}

When I configure DWR 2.0 I do this:

  <dwr:configuration>
    <dwr:convert type="bean" class="com.db.cib.gm.gfdtracker.entities.BaseEntity">
      <dwr:include method="id"/>
      <dwr:include method="name"/>      
    </dwr:convert>
    <dwr:convert type="bean" class="com.db.cib.gm.gfdtracker.entities.Currency">
      <dwr:include method="id"/>
      <dwr:include method="name"/>
      <dwr:include method="code"/>
    </dwr:convert>
  </dwr:configuration>

My question is if it's posible when I configure to do something like this:

  <dwr:configuration>
    <dwr:convert type="bean" class="com.db.cib.gm.gfdtracker.entities.BaseEntity">
      <dwr:include method="id"/>
      <dwr:include method="name"/>      
    </dwr:convert>
    <dwr:convert type="bean" class="com.db.cib.gm.gfdtracker.entities.Currency">
      <dwr:include method="code"/>
    </dwr:convert>
  </dwr:configuration>

When I put this configuration when i recieve a Currency i don't have id and name...it's posible to simplify the fist configuration?? and don't need to put id and name in Currency convert? maybe is able in DWR to put and extends???

Thanks!