Uses of Class
org.apache.hadoop.mapred.MapReduceBase

Packages that use MapReduceBase
org.apache.hadoop.mapred.lib   
 

Uses of MapReduceBase in org.apache.hadoop.mapred.lib
 

Subclasses of MapReduceBase in org.apache.hadoop.mapred.lib
 class IdentityMapper<K,V>
          Implements the identity function, mapping inputs directly to outputs.
 class IdentityReducer<K,V>
          Performs no reduction, writing all input values directly to the output.
 class InverseMapper<K,V>
          A Mapper that swaps keys and values.
 class LongSumReducer<K>
          A Reducer that sums long values.
 class RegexMapper<K>
          A Mapper that extracts text matching a regular expression.
 class TokenCountMapper<K>
          A Mapper that maps text values into pairs.
 



Copyright © 2014 Apache Software Foundation. All Rights Reserved.