| /** | |
| * 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.hadoop.contrib.index.mapred; | |
| import java.io.IOException; | |
| import org.apache.hadoop.conf.Configuration; | |
| import org.apache.hadoop.fs.Path; | |
| /** | |
| * A class implements an index updater interface should create a Map/Reduce job | |
| * configuration and run the Map/Reduce job to analyze documents and update | |
| * Lucene instances in parallel. | |
| */ | |
| public interface IIndexUpdater { | |
| /** | |
| * Create a Map/Reduce job configuration and run the Map/Reduce job to | |
| * analyze documents and update Lucene instances in parallel. | |
| * @param conf | |
| * @param inputPaths | |
| * @param outputPath | |
| * @param numMapTasks | |
| * @param shards | |
| * @throws IOException | |
| */ | |
| void run(Configuration conf, Path[] inputPaths, Path outputPath, | |
| int numMapTasks, Shard[] shards) throws IOException; | |
| } |