Eccube\Entity\Product::addProductClass PHP Method

    public function addProductClass(\Eccube\Entity\ProductClass $productClasses)
    {
        $this->ProductClasses[] = $productClasses;
        return $this;
    }

 /**
  * {@inheritDoc}
  */
 public function addProductClass(\Eccube\Entity\ProductClass $productClasses)
 {
     $this->__initializer__ && $this->__initializer__->__invoke($this, 'addProductClass', array($productClasses));
     return parent::addProductClass($productClasses);
 }