Generated by
JDiff

Package org.apache.hadoop.mapred.lib

Added Classes and Interfaces
ChainMapper The ChainMapper class allows to use multiple Mapper classes within a single Map task.
ChainReducer The ChainReducer class allows to chain multiple Mapper classes after a Reducer within the Reducer task.
DelegatingInputFormat An InputFormat that delegates behaviour of paths to multiple other InputFormats.
DelegatingMapper An Mapper that delegates behaviour of paths to multiple other mappers.
InputSampler Utility for collecting samples and writing a partition file for org.apache.hadoop.mapred.lib.TotalOrderPartitioner.
InputSampler.IntervalSampler Sample from s splits at regular intervals.
InputSampler.RandomSampler Sample from random points in the input.
InputSampler.Sampler Interface to sample using an org.apache.hadoop.mapred.InputFormat.
InputSampler.SplitSampler Samples the first n records from s splits.
KeyFieldBasedComparator This comparator implementation provides a subset of the features provided by the Unix/GNU Sort.
MultipleInputs This class supports MapReduce jobs that have multiple input paths with a different InputFormat and Mapper for each path
MultipleOutputs The MultipleOutputs class simplifies writting to additional outputs other than the job default output via the OutputCollector passed to the map() and reduce() methods of the Mapper and Reducer implementations.
TotalOrderPartitioner Partitioner effecting a total order by reading split points from an externally generated source.
 

Changed Classes
KeyFieldBasedPartitioner Defines a way to partition keys based on certain key fields (also see KeyFieldBasedComparator.