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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\Core\Cache\CacheCollectorInterface. | |
| */ | |
| namespace Drupal\Core\Cache; | |
| /** | |
| * Provides a caching wrapper to be used in place of large structures. | |
| * | |
| * This should be extended by systems that need to cache large amounts of data | |
| * to calling functions. These structures can become very large, so this | |
| * class is used to allow different strategies to be used for caching internally | |
| * (lazy loading, building caches over time etc.). This can dramatically reduce | |
| * the amount of data that needs to be loaded from cache backends on each | |
| * request, and memory usage from static caches of that same data. | |
| * | |
| * The default implementation is \Drupal\Core\Cache\CacheCollector. | |
| * | |
| * @ingroup cache | |
| */ | |
| interface CacheCollectorInterface { | |
| /** | |
| * Gets value from the cache. | |
| * | |
| * @param string $key | |
| * Key that identifies the data. | |
| * | |
| * @return mixed | |
| * The corresponding cache data. | |
| */ | |
| public function get($key); | |
| /** | |
| * Sets cache data. | |
| * | |
| * It depends on the specific case and implementation whether this has a | |
| * permanent effect or if it just affects the current request. | |
| * | |
| * @param string $key | |
| * Key that identifies the data. | |
| * @param mixed $value | |
| * The data to be set. | |
| */ | |
| public function set($key, $value); | |
| /** | |
| * Deletes the element. | |
| * | |
| * It depends on the specific case and implementation whether this has a | |
| * permanent effect or if it just affects the current request. | |
| * | |
| * @param string $key | |
| * Key that identifies the data. | |
| */ | |
| public function delete($key); | |
| /** | |
| * Returns whether data exists for this key. | |
| * | |
| * @param string $key | |
| * Key that identifies the data. | |
| */ | |
| public function has($key); | |
| /** | |
| * Resets the local cache. | |
| * | |
| * Does not clear the persistent cache. | |
| */ | |
| public function reset(); | |
| /** | |
| * Clears the collected cache entry. | |
| */ | |
| public function clear(); | |
| } |