code: protected void createPropertyControlDataObject(Root inputRootDataObject, String inputProperty) {
          // use the root DataGraph to create a PropertyControl DataGraph
          List<Control> propertyControls = inputRootDataObject.getControls();
          PropertyControl propCtrl = null;
          if (propertyControls != null) {
              propCtrl = new PropertyControl();
              propertyControls.add(propCtrl);
          }
          // add the requested property to the return list of properties
          if (propCtrl != null) {
              propCtrl.getProperties().add(inputProperty);
          }
      }
docs: Create a DataObject for the property request.
  
  @param inputRootDataObject The root DataObject.
  @param inputProperty The property to request
  
  @pre inputRootDataObject != null
  @pre inputProperty != null
  @pre inputProperty != ""