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- <?php
- /*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
- namespace Symfony\Component\Config;
- use Symfony\Component\Config\Resource\ResourceInterface;
- /**
- * Interface for ResourceCheckers.
- *
- * When a ResourceCheckerConfigCache instance is checked for freshness, all its associated
- * metadata resources are passed to ResourceCheckers. The ResourceCheckers
- * can then inspect the resources and decide whether the cache can be considered
- * fresh or not.
- *
- * @author Matthias Pigulla <mp@webfactory.de>
- * @author Benjamin Klotz <bk@webfactory.de>
- */
- interface ResourceCheckerInterface
- {
- /**
- * Queries the ResourceChecker whether it can validate a given
- * resource or not.
- *
- * @return bool True if the ResourceChecker can handle this resource type, false if not
- */
- public function supports(ResourceInterface $metadata);
- /**
- * Validates the resource.
- *
- * @param int $timestamp The timestamp at which the cache associated with this resource was created
- *
- * @return bool True if the resource has not changed since the given timestamp, false otherwise
- */
- public function isFresh(ResourceInterface $resource, int $timestamp);
- }
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