org.apache.hadoop.examples.terasort
Class TeraGenWithCRC.SortGenMapper

java.lang.Object
  org.apache.hadoop.mapred.MapReduceBase
      org.apache.hadoop.examples.terasort.TeraGenWithCRC.SortGenMapper

All Implemented Interfaces:

Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

Enclosing class:

TeraGenWithCRC

public static class TeraGenWithCRC.SortGenMapper
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

The Mapper class that given a row number, will generate the appropriate output line.

Constructor Summary

TeraGenWithCRC.SortGenMapper()

Method Summary

void	map(org.apache.hadoop.io.LongWritable row, org.apache.hadoop.io.NullWritable ignored, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output, org.apache.hadoop.mapred.Reporter reporter)

Methods inherited from class org.apache.hadoop.mapred.MapReduceBase

close, configure

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.hadoop.mapred.JobConfigurable

configure

Methods inherited from interface java.io.Closeable

close

Constructor Detail

TeraGenWithCRC.SortGenMapper

public TeraGenWithCRC.SortGenMapper()

Method Detail

map

public void map(org.apache.hadoop.io.LongWritable row,
                org.apache.hadoop.io.NullWritable ignored,
                org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output,
                org.apache.hadoop.mapred.Reporter reporter)
         throws IOException

Specified by:

map in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>

Throws:

IOException