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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.mapred.lib;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.OutputFormat;
import org.apache.hadoop.mapred.RecordWriter;
import org.apache.hadoop.mapred.Reporter;
import org.apache.hadoop.util.Progressable;
/**
* Consume all outputs and put them in /dev/null.
* @deprecated Use
* {@link org.apache.hadoop.mapreduce.lib.output.NullOutputFormat} instead.
*/
@Deprecated
public class NullOutputFormat<K, V> implements OutputFormat<K, V> {
public RecordWriter<K, V> getRecordWriter(FileSystem ignored, JobConf job,
String name, Progressable progress) {
return new RecordWriter<K, V>(){
public void write(K key, V value) { }
public void close(Reporter reporter) { }
};
}
public void checkOutputSpecs(FileSystem ignored, JobConf job) { }
}