org.apache.nutch.crawl
Class CrawlDbMerger.Merger

java.lang.Object
  org.apache.hadoop.mapred.MapReduceBase
      org.apache.nutch.crawl.CrawlDbMerger.Merger

All Implemented Interfaces:

Closeable, JobConfigurable, Reducer<Text,CrawlDatum,Text,CrawlDatum>

Enclosing class:

CrawlDbMerger

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

Constructor Summary

CrawlDbMerger.Merger()

Method Summary

void	close()
void	configure(JobConf conf)
void	reduce(Text key, Iterator<CrawlDatum> values, OutputCollector<Text,CrawlDatum> output, Reporter reporter)

Methods inherited from class java.lang.Object

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

Constructor Detail

CrawlDbMerger.Merger

public CrawlDbMerger.Merger()

Method Detail

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Overrides:

close in class MapReduceBase

Throws:

IOException

configure

public void configure(JobConf conf)

Specified by:

configure in interface JobConfigurable

Overrides:

configure in class MapReduceBase

reduce

public void reduce(Text key,
                   Iterator<CrawlDatum> values,
                   OutputCollector<Text,CrawlDatum> output,
                   Reporter reporter)
            throws IOException

Specified by:

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

Throws:

IOException