Classes List

Symfony\Component\Config\ResourceCheckerInterface

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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. * * @param ResourceInterface $metadata The resource to be checked for freshness * * @return bool True if the ResourceChecker can handle this resource type, false if not */
    public function supports(ResourceInterface $metadata);

    /** * Validates the resource. * * @param ResourceInterface $resource The resource to be validated * @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);
}