| /** |
| * 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.utils.join; |
| |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.io.Writable; |
| import org.apache.hadoop.io.Text; |
| |
| import org.apache.hadoop.contrib.utils.join.TaggedMapOutput; |
| |
| /** |
| * This is a subclass of TaggedMapOutput that is used to |
| * demonstrate the functionality of INNER JOIN between 2 data |
| * sources (TAB separated text files) based on the first column. |
| */ |
| public class SampleTaggedMapOutput extends TaggedMapOutput { |
| |
| private Text data; |
| |
| public SampleTaggedMapOutput() { |
| this.data = new Text(""); |
| } |
| |
| public SampleTaggedMapOutput(Text data) { |
| this.data = data; |
| } |
| |
| public Writable getData() { |
| return data; |
| } |
| |
| public void write(DataOutput out) throws IOException { |
| this.tag.write(out); |
| this.data.write(out); |
| } |
| |
| public void readFields(DataInput in) throws IOException { |
| this.tag.readFields(in); |
| this.data.readFields(in); |
| } |
| } |