180     private function loadAttributes($namespace, $user)  argument
182         $key      = rawurlencode($namespace) . '.' . rawurlencode($user);
236     private function saveAttributes($namespace, $user, $data)  argument
238         $key = rawurlencode($namespace) . '.' . rawurlencode($user);
257      * @param string $namespace
261     public function enumerateUsers($namespace)  argument
270         $key = rawurlencode($namespace) . '.';
293      * @param string $namespace
300     public function set($namespace, $attribute, $value, $user = null)  argument
310         $lock= $namespace . '.' . $user;
313         $data = $this->loadAttributes($namespace, $user);
320             $result = $this->saveAttributes($namespace, $user, $data);
332      * @param string      $namespace
337     public function enumerateAttributes($namespace, $user = null)  argument
348         $lock = $namespace . '.' . $user;
351         $data = $this->loadAttributes($namespace, $user);
368      * @param string      $namespace
374     public function exists($namespace, $attribute, $user = null)  argument
385         $lock = $namespace . '.' . $user;
388         $data = $this->loadAttributes($namespace, $user);
404      * @param string      $namespace
410     public function del($namespace, $attribute, $user = null)  argument
421         $lock = $namespace . '.' . $user;
424         $data = $this->loadAttributes($namespace, $user);
430                 $result = $this->saveAttributes($namespace, $user, $data);
447      * @param string $namespace
452     public function purge($namespace, $user)  argument
462         $lock = $namespace . '.' . $user;
465         $key = rawurlencode($namespace) . '.' . rawurlencode($user);
488      * @param string      $namespace
495     public function get($namespace, $attribute, &$success = false, $user = null)  argument
510         $lock = $namespace . '.' . $user;
513         $data = $this->loadAttributes($namespace, $user);