help like JAXP in BaseX ?

We want to fill a JTree with xquery-result, like
<A  attr="a1">
   <B    attr="b1">
   </B>
</A>

      ResourceSet set = service.query(QUERY);
      ResourceIterator iter = set.getIterator();
      while(iter.hasMoreResources()) {
        Resource res = iter.nextResource();
        System.out.println(res.getContent());
      }

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
      factory.setNamespaceAware(true);
      DocumentBuilder builder = null;
      Document doc = null;

      try {
            builder = factory.newDocumentBuilder();
            doc = builder.parse(XMLFile);
      } catch (xx)