Uses of Interface
org.apache.hadoop.mapred.Mapper

Packages that use Mapper
org.apache.hadoop.examples Hadoop example code. 
org.apache.hadoop.mapred.lib Library of generally useful mappers, reducers, and partitioners. 
org.apache.hadoop.util Common utilities. 
 

Uses of Mapper in org.apache.hadoop.examples
 

Classes in org.apache.hadoop.examples that implement Mapper
static class RandomWriter.Map
           
static class WordCount.MapClass
          Counts the words in each line.
 

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

Classes in org.apache.hadoop.mapred.lib that implement Mapper
 class IdentityMapper
          Implements the identity function, mapping inputs directly to outputs.
 class InverseMapper
          A Mapper that swaps keys and values.
 class RegexMapper
          A Mapper that extracts text matching a regular expression.
 class TokenCountMapper
          A Mapper that maps text values into pairs.
 

Uses of Mapper in org.apache.hadoop.util
 

Classes in org.apache.hadoop.util that implement Mapper
static class CopyFiles.CopyFilesMapper
          Mappper class for Copying files.
 



Copyright © 2006 The Apache Software Foundation