1 files changed, 16 insertions, 0 deletions
diff --git a/www/wiki/includes/deferred/MergeableUpdate.php b/www/wiki/includes/deferred/MergeableUpdate.php
new file mode 100644
index 00000000..8eeef13b
--- /dev/null
+++ b/www/wiki/includes/deferred/MergeableUpdate.php
@@ -0,0 +1,16 @@
+<?php
+
+/**
+ * Interface that deferrable updates can implement. DeferredUpdates uses this to merge
+ * all pending updates of PHP class into a single update by calling merge().
+ *
+ * @since 1.27
+ */
+interface MergeableUpdate extends DeferrableUpdate {
+	/**
+	 * Merge this update with $update
+	 *
+	 * @param MergeableUpdate $update Update of the same class type
+	 */
+	function merge( MergeableUpdate $update );
+}