org.apache.nutch.crawl

Class CrawlDbReader.CrawlDbTopNReducer

java.lang.Object

org.apache.nutch.crawl.CrawlDbReader.CrawlDbTopNReducer

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text>

Enclosing class:

CrawlDbReader

public static class CrawlDbReader.CrawlDbTopNReducer
extends Object
implements org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text>

Constructor Summary

Constructors

Constructor and Description
CrawlDbReader.CrawlDbTopNReducer()

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
void	configure(org.apache.hadoop.mapred.JobConf job)
void	reduce(org.apache.hadoop.io.FloatWritable key, Iterator<org.apache.hadoop.io.Text> values, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text> output, org.apache.hadoop.mapred.Reporter reporter)

Methods inherited from class java.lang.Object

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

Constructor Detail

CrawlDbReader.CrawlDbTopNReducer

public CrawlDbReader.CrawlDbTopNReducer()

Method Detail

reduce

public void reduce(org.apache.hadoop.io.FloatWritable key,
          Iterator<org.apache.hadoop.io.Text> values,
          org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text> output,
          org.apache.hadoop.mapred.Reporter reporter)
            throws IOException

Specified by:

reduce in interface org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.FloatWritable,org.apache.hadoop.io.Text>

Throws:

IOException

configure

public void configure(org.apache.hadoop.mapred.JobConf job)

Specified by:

configure in interface org.apache.hadoop.mapred.JobConfigurable

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable