/**
  * {@inheritDoc}
  */
 public function getInventoryId()
 {
     if ($this->__isInitialized__ === false) {
         return (int) parent::getInventoryId();
     }
     $this->__initializer__ && $this->__initializer__->__invoke($this, 'getInventoryId', array());
     return parent::getInventoryId();
 }