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

Packages that use JobConfigurable
org.apache.hadoop.examples Hadoop example code. 
org.apache.hadoop.mapred A system for scalable, fault-tolerant, distributed computation over large data collections. 
org.apache.hadoop.mapred.lib Library of generally useful mappers, reducers, and partitioners. 
 

Uses of JobConfigurable in org.apache.hadoop.examples
 

Classes in org.apache.hadoop.examples that implement JobConfigurable
static class WordCount.MapClass
          Counts the words in each line.
static class WordCount.Reduce
          A reducer class that just emits the sum of the input values.
 

Uses of JobConfigurable in org.apache.hadoop.mapred
 

Subinterfaces of JobConfigurable in org.apache.hadoop.mapred
 interface Mapper
          Maps input key/value pairs to a set of intermediate key/value pairs.
 interface MapRunnable
          Expert: Permits greater control of map processing.
 interface Partitioner
          Partitions the key space.
 interface Reducer
          Reduces a set of intermediate values which share a key to a smaller set of values.
 

Classes in org.apache.hadoop.mapred that implement JobConfigurable
 class MapReduceBase
          A class to implement the trivial close and configure methods.
 class MapRunner
          Default MapRunnable implementation.
 

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

Classes in org.apache.hadoop.mapred.lib that implement JobConfigurable
 class HashPartitioner
          Partition keys by their Object.hashCode().
 class IdentityMapper
          Implements the identity function, mapping inputs directly to outputs.
 class IdentityReducer
          Performs no reduction, writing all input values directly to the output.
 class InverseMapper
          A Mapper that swaps keys and values.
 class LongSumReducer
          A Reducer that sums long values.
 class RegexMapper
          A Mapper that extracts text matching a regular expression.
 class TokenCountMapper
          A Mapper that maps text values into pairs.
 



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