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: /mnt/lmsestudio-instance-vol002/lms_83b50e5a8771/vendor/psr/cache/src/ [ drwxr-xr-x ]
name : CacheItemInterface.php <?php namespace Psr\Cache; /** * CacheItemInterface defines an interface for interacting with objects inside a cache. * * Each Item object MUST be associated with a specific key, which can be set * according to the implementing system and is typically passed by the * Cache\CacheItemPoolInterface object. * * The Cache\CacheItemInterface object encapsulates the storage and retrieval of * cache items. Each Cache\CacheItemInterface is generated by a * Cache\CacheItemPoolInterface object, which is responsible for any required * setup as well as associating the object with a unique Key. * Cache\CacheItemInterface objects MUST be able to store and retrieve any type * of PHP value defined in the Data section of the specification. * * Calling Libraries MUST NOT instantiate Item objects themselves. They may only * be requested from a Pool object via the getItem() method. Calling Libraries * SHOULD NOT assume that an Item created by one Implementing Library is * compatible with a Pool from another Implementing Library. */ interface CacheItemInterface { /** * Returns the key for the current cache item. * * The key is loaded by the Implementing Library, but should be available to * the higher level callers when needed. * * @return string * The key string for this cache item. */ public function getKey(); /** * Retrieves the value of the item from the cache associated with this object's key. * * The value returned must be identical to the value originally stored by set(). * * If isHit() returns false, this method MUST return null. Note that null * is a legitimate cached value, so the isHit() method SHOULD be used to * differentiate between "null value was found" and "no value was found." * * @return mixed * The value corresponding to this cache item's key, or null if not found. */ public function get(); /** * Confirms if the cache item lookup resulted in a cache hit. * * Note: This method MUST NOT have a race condition between calling isHit() * and calling get(). * * @return bool * True if the request resulted in a cache hit. False otherwise. */ public function isHit(); /** * Sets the value represented by this cache item. * * The $value argument may be any item that can be serialized by PHP, * although the method of serialization is left up to the Implementing * Library. * * @param mixed $value * The serializable value to be stored. * * @return static * The invoked object. */ public function set($value); /** * Sets the expiration time for this cache item. * * @param \DateTimeInterface|null $expiration * The point in time after which the item MUST be considered expired. * If null is passed explicitly, a default value MAY be used. If none is set, * the value should be stored permanently or for as long as the * implementation allows. * * @return static * The called object. */ public function expiresAt($expiration); /** * Sets the expiration time for this cache item. * * @param int|\DateInterval|null $time * The period of time from the present after which the item MUST be considered * expired. An integer parameter is understood to be the time in seconds until * expiration. If null is passed explicitly, a default value MAY be used. * If none is set, the value should be stored permanently or for as long as the * implementation allows. * * @return static * The called object. */ public function expiresAfter($time); }