code: public static String getConvertedPropertyValue(final SecurityContext securityContext, final GraphObject graphObject, final PropertyKey key) throws IOException, FrameworkException {
  
  		final PropertyConverter inputConverter = key.inputConverter(securityContext);
  		Object actualValue                     = graphObject.getProperty(key);
  
  		if (inputConverter != null) {
  			actualValue = inputConverter.revert(actualValue);
  		}
  
  		if (actualValue != null) {
  			return actualValue.toString();
  		}
  
  		return "";
  	}
docs: ----- public static methods -----