 <code>ValueChangeListener</code>s,
	  <code>Converter</code>s, or <code>Validator</code>s to either
	  or both text fields.
	  </p>

           <p>In this case, a
           <code>&lt;cc:editableValueHolder&gt;</code> element is
           included in the usage contract that refers to the inner text
           field in the <code>&lt;cc:implementation&gt;</code>
           section.  In the case of wanting to enable only adding a
           <code>Converter</code> (and not a
           <code>ValueChangeListen