com.intel.hadoop.graphbuilder.idnormalize.mapreduce
Class SortEdgeMR.SortEdgeMapper

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by com.intel.hadoop.graphbuilder.idnormalize.mapreduce.SortEdgeMR.SortEdgeMapper
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text>
Enclosing class:
SortEdgeMR

public static class SortEdgeMR.SortEdgeMapper
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text>

This mapper class maps each edge into (h(edge.source), edge). The hash function depends on "numChunks" passed through the JobConf.

Author:
Haijie Gu

Constructor Summary
SortEdgeMR.SortEdgeMapper()
           
 
Method Summary
 void configure(org.apache.hadoop.mapred.JobConf conf)
           
 void map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text val, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text> out, org.apache.hadoop.mapred.Reporter arg3)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

SortEdgeMR.SortEdgeMapper

public SortEdgeMR.SortEdgeMapper()
Method Detail

configure

public void configure(org.apache.hadoop.mapred.JobConf conf)
Specified by:
configure in interface org.apache.hadoop.mapred.JobConfigurable
Overrides:
configure in class org.apache.hadoop.mapred.MapReduceBase

map

public void map(org.apache.hadoop.io.LongWritable key,
                org.apache.hadoop.io.Text val,
                org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text> out,
                org.apache.hadoop.mapred.Reporter arg3)
         throws java.io.IOException
Specified by:
map in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.Text>
Throws:
java.io.IOException