IIndexUpdater.java
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上传日期:2018-01-08
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- /**
- * 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;
- }