49      * @param int $year Year
53     private static function getMonthCacheKey($namespace, $year, $month) {  argument
55         return sprintf('events_%s_%04d_%02d', $ns, $year, $month);
72      * @param int $year Year
77     public static function getMonthEvents($namespace, $year, $month, $ttl = self::DEFAULT_TTL) {  argument
78         $key = self::getMonthCacheKey($namespace, $year, $month);
119      * @param int $year Year
124     public static function setMonthEvents($namespace, $year, $month, array $events) {  argument
125         $key = self::getMonthCacheKey($namespace, $year, $month);
151      * @param int $year Year
154     public static function invalidateMonth($namespace, $year, $month) {  argument
155         $key = self::getMonthCacheKey($namespace, $year, $month);