Examples of org.apache.hadoop.mapred.lib.LongSumReducer

  @Test
  public void testSumAtEnd() {
    PipelineMapReduceDriver driver = new PipelineMapReduceDriver();
    driver.withMapReduce(new IdentityMapper(), new IdentityReducer())
          .withMapReduce(new IdentityMapper(), new IdentityReducer())
          .withMapReduce(new IdentityMapper(), new LongSumReducer())
          .withInput(new Text("foo"), new LongWritable(FOO_IN_A))
          .withInput(new Text("bar"), new LongWritable(BAR_IN))
          .withInput(new Text("foo"), new LongWritable(FOO_IN_B))
          .withOutput(new Text("bar"), new LongWritable(BAR_OUT))
          .withOutput(new Text("foo"), new LongWritable(FOO_OUT))


  @Test
  public void testSumInMiddle() {
    PipelineMapReduceDriver driver = new PipelineMapReduceDriver();
    driver.withMapReduce(new IdentityMapper(), new IdentityReducer())
          .withMapReduce(new IdentityMapper(), new LongSumReducer())
          .withMapReduce(new IdentityMapper(), new IdentityReducer())
          .withInput(new Text("foo"), new LongWritable(FOO_IN_A))
          .withInput(new Text("bar"), new LongWritable(BAR_IN))
          .withInput(new Text("foo"), new LongWritable(FOO_IN_B))
          .withOutput(new Text("bar"), new LongWritable(BAR_OUT))

Related Classes of org.apache.hadoop.mapred.lib.LongSumReducer

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