The \Magento\Catalog\Api\Data\CategoryInterface is implemented by the \Magento\Catalog\Model\Category class

dmitry_fedyuk · April 25, 2016, 10:44pm

magento/magento2/blob/958164/app/code/Magento/Catalog/Api/Data/CategoryInterface.php#L11-L14


/**
* @api
*/
interface CategoryInterface extends \Magento\Framework\Api\CustomAttributesDataInterface

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/etc/di.xml#L23-L23


<preference for="Magento\Catalog\Api\Data\CategoryInterface" type="Magento\Catalog\Model\Category" />

github.com

magento/magento2/blob/958164/app/code/Magento/Catalog/Model/Category.php#L37-L41


class Category extends \Magento\Catalog\Model\AbstractModel implements
\Magento\Framework\DataObject\IdentityInterface,
\Magento\Catalog\Api\Data\CategoryInterface,
\Magento\Catalog\Api\Data\CategoryTreeInterface
{