Eccube\Entity\Product::getFreeArea PHP Method

    public function getFreeArea()
    {
        return $this->free_area;
    }

 /**
  * {@inheritDoc}
  */
 public function getFreeArea()
 {
     $this->__initializer__ && $this->__initializer__->__invoke($this, 'getFreeArea', array());
     return parent::getFreeArea();
 }