org.apache.nutch.crawl
Class CrawlDbReducer

java.lang.Object
  org.apache.nutch.crawl.CrawlDbReducer

All Implemented Interfaces:

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

public class CrawlDbReducer
extends Object
implements Reducer<Text,CrawlDatum,Text,CrawlDatum>

Merge new page entries with existing entries.

Field Summary

static org.apache.commons.logging.Log

LOG

Constructor Summary

CrawlDbReducer()

Method Summary

void	close()
void	configure(JobConf job)
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

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

Constructor Detail

CrawlDbReducer

public CrawlDbReducer()

Method Detail

configure

public void configure(JobConf job)

Specified by:

configure in interface JobConfigurable

close

public void close()

Specified by:

close in interface Closeable

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