* @category Horde * @copyright 2013-2016 Horde LLC * @license http://www.horde.org/licenses/lgpl21 LGPL 2.1 * @package HashTable */ class Horde_HashTable_Memcache extends Horde_HashTable_Base implements Horde_HashTable_Lock { /** * Memcache object. * * @var Horde_Memcache */ protected $_memcache; /** * @param array $params Additional configuration parameters: *

     *   - memcache: (Horde_Memcache) [REQUIRED] Memcache object.
     *

*/ public function __construct(array $params = array()) { if (!isset($params['memcache'])) { throw new InvalidArgumentException('Missing memcache parameter.'); } parent::__construct($params); } /** */ protected function _init() { $this->_memcache = $this->_params['memcache']; } /** */ protected function _delete($keys) { $ret = true; foreach ($keys as $val) { if (!$this->_memcache->delete($val)) { $ret = false; } } return $ret; } /** */ protected function _exists($keys) { $out = array(); foreach ($this->_get($keys) as $key => $val) { $out[$key] = ($val !== false); } return $out; } /** */ protected function _get($keys) { return (($res = $this->_memcache->get($keys)) === false) ? array_fill_keys($keys, false) : $res; } /** */ protected function _set($key, $val, $opts) { return empty($opts['replace']) ? $this->_memcache->set($key, $val, isset($opts['expire']) ? $opts['expire'] : 0) : $this->_memcache->replace($key, $val, isset($opts['expire']) ? $opts['expire'] : 0); } /** */ public function lock($key) { $this->_memcache->lock($key); } /** */ public function unlock($key) { $this->_memcache->unlock($key); } /** */ public function clear() { // No way to delete keys via memcache - have to drop entire DB. $this->_memcache->flush(); } /* Unique driver methods. */ /** * Get the statistics output from the current memcache pool. * * @see Horde_Memcache#stats() */ public function stats() { return $this->_memcache->stats(); } }