1 files changed, 36 insertions, 0 deletions
diff --git a/java/com/google/gerrit/server/update/BatchUpdateListener.java b/java/com/google/gerrit/server/update/BatchUpdateListener.java
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+++ b/java/com/google/gerrit/server/update/BatchUpdateListener.java
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+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package com.google.gerrit.server.update;
+
+/**
+ * Interface for listening during batch update execution.
+ *
+ * <p>When used during execution of multiple batch updates, the {@code after*} methods are called
+ * after that phase has been completed for <em>all</em> updates.
+ *
+ * <p>Listeners are only supported for the {@link Order#REPO_BEFORE_DB} order.
+ */
+public interface BatchUpdateListener {
+  public static final BatchUpdateListener NONE = new BatchUpdateListener() {};
+
+  /** Called after updating all repositories and flushing objects but before updating any refs. */
+  default void afterUpdateRepos() throws Exception {}
+
+  /** Called after updating all refs. */
+  default void afterUpdateRefs() throws Exception {}
+
+  /** Called after updating all changes. */
+  default void afterUpdateChanges() throws Exception {}
+}