code: public static Object toUUId(Object o, Object defaultValue) {
  	String str = toString(o, null);
  	if (str == null) return defaultValue;
  
  	if (!Decision.isUUId(str)) return defaultValue;
  	return str;
      }
docs: cast a Object to a UUID
  
  @param o Object to cast
  @param defaultValue
  @return casted Query Object