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<?php |
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namespace ByJG\Cache\Psr16; |
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use ByJG\Cache\CacheLockInterface; |
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class NoCacheEngine extends BaseCacheEngine implements CacheLockInterface |
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{ |
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/** |
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* @param string $key The object KEY |
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* @param int $default IGNORED IN MEMCACHED. |
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* @return mixed Description |
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*/ |
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public function get($key, $default = null) |
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{ |
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return $default; |
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} |
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/** |
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* @param string $key The object Key |
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* @param object $value The object to be cached |
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* @param int $ttl The time to live in seconds of this objects |
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* @return bool If the object is successfully posted |
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*/ |
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public function set($key, $value, $ttl = 0) |
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{ |
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return true; |
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} |
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/** |
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* Unlock resource |
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* @param string $key |
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*/ |
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public function delete($key) |
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{ |
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return true; |
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} |
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/** |
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* Lock resource before set it. |
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* @param string $key |
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*/ |
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public function lock($key) |
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{ |
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return; |
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} |
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/** |
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* UnLock resource after set it |
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* @param string $key |
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*/ |
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public function unlock($key) |
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{ |
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return; |
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} |
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public function isAvailable() |
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{ |
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return true; |
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} |
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/** |
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* Wipes clean the entire cache's keys. |
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* |
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* @return bool True on success and false on failure. |
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*/ |
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public function clear() |
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{ |
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return true; |
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} |
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/** |
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* Determines whether an item is present in the cache. |
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* NOTE: It is recommended that has() is only to be used for cache warming type purposes |
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* and not to be used within your live applications operations for get/set, as this method |
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* is subject to a race condition where your has() will return true and immediately after, |
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* another script can remove it making the state of your app out of date. |
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* |
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* @param string $key The cache item key. |
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* @return bool |
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* @throws \Psr\SimpleCache\InvalidArgumentException |
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* MUST be thrown if the $key string is not a legal value. |
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*/ |
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public function has($key) |
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{ |
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return false; |
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} |
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} |
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