public function __construct($key, $values)
 {
     parent::__construct($key);
     foreach ($values as $ckey => $cval) {
         $this->params[$ckey] = new ConfigurationParameter($ckey, $cval);
     }
 }
 public function __construct($key, $values)
 {
     parent::__construct($key);
     $this->values = $values;
 }