net.nutch.mapReduce
Class DefaultMapper

java.lang.Object
  extended bynet.nutch.mapReduce.DefaultMapper
All Implemented Interfaces:
Mapper

public class DefaultMapper
extends Object
implements Mapper

The default Mapper. Implements the identity function, mapping inputs directly to outputs.


Constructor Summary
DefaultMapper()
           
 
Method Summary
 void map(WritableComparable key, Writable val, OutputCollector results)
          The identify function.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DefaultMapper

public DefaultMapper()
Method Detail

map

public void map(WritableComparable key,
                Writable val,
                OutputCollector results)
         throws IOException
The identify function. Input key/value pair is written directly to output.

Specified by:
map in interface Mapper
Parameters:
key - the key
val - the values
results - collects mapped keys and values
Throws:
IOException


Copyright © 2005 The Nutch Organization.