| /* |
| * 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. |
| */ |
| package org.apache.lucene.index; |
| |
| |
| /** |
| * MergeTrigger is passed to |
| * {@link MergePolicy#findMerges(MergeTrigger, SegmentInfos, MergePolicy.MergeContext)} 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, |
| |
| /** |
| * Merge was triggered on commit. |
| */ |
| COMMIT, |
| /** |
| * Merge was triggered on opening NRT readers. |
| */ |
| GET_READER, |
| } |