protected function prepareUrlRewriteProductCategoryAttributes()
    {

        // return the prepared product
        return $this->initializeEntity(
            array(
                MemberNames::PRODUCT_ID     => $this->entityId,
                MemberNames::CATEGORY_ID    => $this->categoryId,
                MemberNames::URL_REWRITE_ID => $this->urlRewriteId
            )
        );
    }