svn commit: r1576476 - /lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/index/MergeTrigger.java

[si...@apache.org]

Author: simonw
Date: Tue Mar 11 19:14:25 2014
New Revision: 1576476

URL: http://svn.apache.org/r1576476
Log:
LUCENE-5516: Add missing file

Added:
    lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/index/MergeTrigger.java   (with props)

Added: lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/index/MergeTrigger.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/index/MergeTrigger.java?rev=1576476&view=auto
==============================================================================
--- lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/index/MergeTrigger.java (added)
+++ lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/index/MergeTrigger.java Tue Mar 11 19:14:25 2014
@@ -0,0 +1,49 @@
+package org.apache.lucene.index;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+
+/**
+ * MergeTrigger is passed to
+ * {@link org.apache.lucene.index.MergePolicy#findMerges(MergeTrigger, org.apache.lucene.index.SegmentInfos)} to indicate the
+ * event that triggered the merge.
+ */
+public enum MergeTrigger {
+  /**
+   * Merge was triggered by a segment flush.
+   */
+  SEGMENT_FLUSH,
+  /**
+   * Merge was triggered by a full flush. Full flushes
+   * can be caused by a commit, NRT reader reopen or a close call on the index writer.
+   */
+  FULL_FLUSH,
+  /**
+   * Merge has been triggered explicitly by the user.
+   */
+  EXPLICIT,
+
+  /**
+   * Merge was triggered by a successfully finished merge.
+   */
+  MERGE_FINISHED,
+
+  /**
+   * Merge was triggered by a closing IndexWriter.
+   */
+  CLOSING
+}