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: /var/www/zenithentcare/vendor/psr/cache/src/ [ drwxrwxr-x ]
name : CacheItemPoolInterface.php <?php namespace Psr\Cache; /** * CacheItemPoolInterface generates CacheItemInterface objects. * * The primary purpose of Cache\CacheItemPoolInterface is to accept a key from * the Calling Library and return the associated Cache\CacheItemInterface object. * It is also the primary point of interaction with the entire cache collection. * All configuration and initialization of the Pool is left up to an * Implementing Library. */ interface CacheItemPoolInterface { /** * Returns a Cache Item representing the specified key. * * This method must always return a CacheItemInterface object, even in case of * a cache miss. It MUST NOT return null. * * @param string $key * The key for which to return the corresponding Cache Item. * * @throws InvalidArgumentException * If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException * MUST be thrown. * * @return CacheItemInterface * The corresponding Cache Item. */ public function getItem($key); /** * Returns a traversable set of cache items. * * @param string[] $keys * An indexed array of keys of items to retrieve. * * @throws InvalidArgumentException * If any of the keys in $keys are not a legal value a \Psr\Cache\InvalidArgumentException * MUST be thrown. * * @return array|\Traversable * A traversable collection of Cache Items keyed by the cache keys of * each item. A Cache item will be returned for each key, even if that * key is not found. However, if no keys are specified then an empty * traversable MUST be returned instead. */ public function getItems(array $keys = array()); /** * Confirms if the cache contains specified cache item. * * Note: This method MAY avoid retrieving the cached value for performance reasons. * This could result in a race condition with CacheItemInterface::get(). To avoid * such situation use CacheItemInterface::isHit() instead. * * @param string $key * The key for which to check existence. * * @throws InvalidArgumentException * If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException * MUST be thrown. * * @return bool * True if item exists in the cache, false otherwise. */ public function hasItem($key); /** * Deletes all items in the pool. * * @return bool * True if the pool was successfully cleared. False if there was an error. */ public function clear(); /** * Removes the item from the pool. * * @param string $key * The key to delete. * * @throws InvalidArgumentException * If the $key string is not a legal value a \Psr\Cache\InvalidArgumentException * MUST be thrown. * * @return bool * True if the item was successfully removed. False if there was an error. */ public function deleteItem($key); /** * Removes multiple items from the pool. * * @param string[] $keys * An array of keys that should be removed from the pool. * @throws InvalidArgumentException * If any of the keys in $keys are not a legal value a \Psr\Cache\InvalidArgumentException * MUST be thrown. * * @return bool * True if the items were successfully removed. False if there was an error. */ public function deleteItems(array $keys); /** * Persists a cache item immediately. * * @param CacheItemInterface $item * The cache item to save. * * @return bool * True if the item was successfully persisted. False if there was an error. */ public function save(CacheItemInterface $item); /** * Sets a cache item to be persisted later. * * @param CacheItemInterface $item * The cache item to save. * * @return bool * False if the item could not be queued or if a commit was attempted and failed. True otherwise. */ public function saveDeferred(CacheItemInterface $item); /** * Persists any deferred cache items. * * @return bool * True if all not-yet-saved items were successfully saved or there were none. False otherwise. */ public function commit(); }