Package org.apache.nutch.crawl

Class CrawlDbMerger.Merger

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<Text,CrawlDatum,Text,CrawlDatum>

org.apache.nutch.crawl.CrawlDbMerger.Merger

Enclosing class:

CrawlDbMerger

public static class CrawlDbMerger.Merger
extends Reducer<Text,CrawlDatum,Text,CrawlDatum>

Nested Class Summary

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

Reducer.Context

Constructor Summary

Constructors

Constructor	Description
Merger()

Method Summary

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

Merger

public Merger()

Method Detail

setup

public void setup(Reducer.Context context)

Overrides:

setup in class Reducer<Text,CrawlDatum,Text,CrawlDatum>

reduce

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

Overrides:

reduce in class Reducer<Text,CrawlDatum,Text,CrawlDatum>

Throws:

IOException

InterruptedException