code: public static boolean isPropertyToFiltering (ClassPropertyFilterHandler pvClassPropertyFilterHandler, Class<?> pvClassForFindFilter, Object pvKey) {
  		boolean lvAddProperty = false;
  		if (pvClassPropertyFilterHandler != null) {
  			ClassPropertyFilter lvClassPropertyFilter = pvClassPropertyFilterHandler.getClassPropertyFilterByClass(pvClassForFindFilter);
  			String lvKey = (pvKey == null ? null : pvKey.toString());
  			if (lvClassPropertyFilter != null && lvClassPropertyFilter.isKnownProperty(lvKey) == true) {
  				lvAddProperty = true;
  			}
  		}
  		return lvAddProperty;
  	}
docs: Check a property from a class by a handler.
  
  @param pvClassPropertyFilterHandler The handler implementation.
  @param pvClassForFindFilter The class for the filter.
  @param pvKey The to filtering property.
  @return <code>true</code>, if the property from the class is known by the handler, else <code>false</code>.