/**
* Return an array of stored cache ids which don't match given tags
*
* In case of multiple tags, a negated logical AND is made between tags
*
* @param array $tags array of tags
* @return array array of not matching cache ids (string)
*/
public function getIdsNotMatchingTags($tags = array())
{
if (!$this->_notMatchingTags) {
Zend_Cache::throwException("notMatchingTags is currently disabled.");
}
if ($tags) {
return (array) $this->_redis->sDiff(self::SET_IDS, $this->_preprocessTagIds($tags));
}
return (array) $this->_redis->sMembers(self::SET_IDS);
}