code: protected Document newChildReference( String childId,
                                            String childName ) {
          return DocumentFactory.newDocument(DocumentTranslator.KEY, childId, DocumentTranslator.NAME, childName);
      }
docs: Obtain a new child reference document that is useful in the {@link #getChildReference(String, String)} method.
  
  @param childId the ID of the child node; may not be null
  @param childName the name of the child node; may not be null
  @return the child reference document; never null