public static void unbind(final Object bean, final PropertyReference propertyReference) {
   final Object propertyModel = getPropertyModel(bean, propertyReference);
   unbind(propertyReference.getValueType(), propertyModel);
 }
 public static void bind(
     final Object bean, final PropertyReference propertyReference, final Object observableValue) {
   final Object propertyModel = getPropertyModel(bean, propertyReference);
   bind(propertyReference.getValueType(), propertyModel, observableValue);
 }