title: Dozer exclude nested field
body: <p>Is it possible to exclude a child of a field? e.g. A field "item" contains another "subItem". How can I exlude the "subItem" being mapped?    </p>
  
  <pre><code>&lt;mapping&gt; 
      &lt;class-a&gt;test.ClassA&lt;/class-a&gt;
      &lt;class-b&gt;test.ClassB&lt;/class-b&gt;    
      &lt;field-exclude&gt;
          &lt;a&gt;item.subItem&lt;/a&gt;
          &lt;b&gt;item.subItem&lt;/b&gt;
      &lt;/field-exclude&gt;                
  &lt;/mapping&gt;  
  </code></pre>
  
  <p>Thanks for any sugestions.  </p>