1 package org.apache.lucene.index;
4 * Licensed to the Apache Software Foundation (ASF) under one or more
5 * contributor license agreements. See the NOTICE file distributed with
6 * this work for additional information regarding copyright ownership.
7 * The ASF licenses this file to You under the Apache License, Version 2.0
8 * (the "License"); you may not use this file except in compliance with
9 * the License. You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
20 import java.io.IOException;
22 /** A {@link MergeScheduler} that simply does each merge
23 * sequentially, using the current thread. */
24 public class SerialMergeScheduler extends MergeScheduler {
26 /** Just do the merges in sequence. We do this
27 * "synchronized" so that even if the application is using
28 * multiple threads, only one merge may run at a time. */
30 synchronized public void merge(IndexWriter writer)
31 throws CorruptIndexException, IOException {
34 MergePolicy.OneMerge merge = writer.getNextMerge();
42 public void close() {}