ZF2: How to using DB transaction with zf2

gistfile1.php

public function add($data) {
    try {
        /**
         * @var \Zend\Db\Adapter\Driver\Pdo\Connection
         */
        $connection = $this->itemTable->adapter->getDriver()->getConnection();
 
        $connection->beginTransaction();
 
        $connection->commit();
    } catch (Exception $e) {
        $connection->rollback();
    }
    return $this->itemTable->add($data);
}

// @see http://giaule.com/2012/10/27/how-to-using-transaction-with-zf2/