Merge "Add `makeKey` and `makeGlobalKey` to BagOStuff"

[lhc/web/wiklou.git] / includes / objectcache / ObjectCache.php

diff --git a/includes/objectcache/ObjectCache.php b/includes/objectcache/ObjectCache.php
index bc16537..d739d8e 100644 (file)
--- a/includes/objectcache/ObjectCache.php
+++ b/includes/objectcache/ObjectCache.php
@@ -43,12 +43,12 @@ use MediaWiki\Logger\LoggerFactory;
  * Primary entry points:
  *
  * - ObjectCache::newAccelerator( $fallbackType )
- *   Purpose: Cache.
+ *   Purpose: Cache for very hot keys.
  *   Stored only on the individual web server.
  *   Not associated with other servers.
  *
  * - ObjectCache::getMainClusterInstance()
- *   Purpose: Cache.
+ *   Purpose: Memory storage for per-cluster coordination and tracking.
  *   Stored centrally within the local data-center.
  *   Not replicated to other DCs.
  *   Also known as $wgMemc. Configured by $wgMainCacheType.
@@ -71,10 +71,9 @@ use MediaWiki\Logger\LoggerFactory;
  * @ingroup Cache
  */
 class ObjectCache {
-       /** @var Array Map of (id => BagOStuff) */
+       /** @var BagOStuff[] Map of (id => BagOStuff) */
        public static $instances = array();
-
-       /** @var Array Map of (id => WANObjectCache) */
+       /** @var WANObjectCache[] Map of (id => WANObjectCache) */
        public static $wanInstances = array();
 
        /**