/** | |
* 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; | |
} |