public static function getInstance($datahandlersPaths)
 {
     if (!self::$_instance instanceof self) {
         self::$_instance = new self($datahandlersPaths);
     }
     return self::$_instance;
 }
 public static function create($id = null)
 {
     $pathsProvider = PathsProvider::init();
     return DynamicDatahandlerMap::getInstance($pathsProvider->getDatahandlersDirs())->generate($id);
 }