public function rollBack()
    {
        if ($this->transactionNestingLevel === 0) {
            throw ConnectionException::noActiveTransaction();
        }

        $connection = $this->getWrappedConnection();

        $logger = $this->_config->getSQLLogger();

        if ($this->transactionNestingLevel === 1) {
            if ($logger) {
                $logger->startQuery('"ROLLBACK"');
            }
            $this->transactionNestingLevel = 0;
            $connection->rollBack();
            $this->isRollbackOnly = false;
            if ($logger) {
                $logger->stopQuery();
            }

            if ($this->autoCommit === false) {
                $this->beginTransaction();
            }
        } elseif ($this->nestTransactionsWithSavepoints) {
            if ($logger) {
                $logger->startQuery('"ROLLBACK TO SAVEPOINT"');
            }
            $this->rollbackSavepoint($this->_getNestedTransactionSavePointName());
            --$this->transactionNestingLevel;
            if ($logger) {
                $logger->stopQuery();
            }
        } else {
            $this->isRollbackOnly = true;
            --$this->transactionNestingLevel;
        }
    }