Package org.apache.nutch.scoring.webgraph

Class LinkDumper.Inverter.InvertReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>

org.apache.nutch.scoring.webgraph.LinkDumper.Inverter.InvertReducer

Enclosing class:

LinkDumper.Inverter

public static class LinkDumper.Inverter.InvertReducer
extends Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>

Inverts outlinks to inlinks while attaching node information to the outlink.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer

Reducer.Context

Constructor Summary

Constructors

Constructor	Description
InvertReducer()

Method Summary

Modifier and Type	Method	Description
void	reduce(Text key, Iterable<ObjectWritable> values, Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>.Context context)
void	setup(Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>.Context context)

Methods inherited from class org.apache.hadoop.mapreduce.Reducer

cleanup, run

Methods inherited from class java.lang.Object

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

Constructor Details

InvertReducer

public InvertReducer()

Method Details

setup

public void setup(Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>.Context context)

Overrides:

setup in class Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>

reduce

public void reduce(Text key,
 Iterable<ObjectWritable> values,
 Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>.Context context)
            throws IOException,
InterruptedException

Overrides:

reduce in class Reducer<Text,ObjectWritable,Text,LinkDumper.LinkNode>

Throws:

IOException

InterruptedException