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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <[email protected]> * * 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 <[email protected]> * @author Benjamin Klotz <[email protected]> */ 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, $timestamp); }