<?php
/**
 * This file is part of the sshilko/php-sql-mydb package.
 *
 * (c) Sergei Shilko <contact@sshilko.com>
 *
 * MIT License
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 * @license https://opensource.org/licenses/mit-license.php MIT
 */

declare(strict_types = 1);

namespace sql;

abstract class MydbListener implements MydbListenerInterface
{
    abstract protected function onEvent(MydbEventMetadataInterface $event): ?bool;

    public function observe(MydbEventMetadataInterface $event): bool
    {
        return false !== $this->onEvent($event);
    }
}