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

Packages that use Mapper
org.apache.hadoop.contrib.index.example   
org.apache.hadoop.contrib.index.mapred   
org.apache.hadoop.contrib.utils.join   
org.apache.hadoop.mapred A software framework for easily writing applications which process vast amounts of data (multi-terabyte data-sets) parallelly on large clusters (thousands of nodes) built of commodity hardware in a reliable, fault-tolerant manner. 
org.apache.hadoop.mapred.lib Library of generally useful mappers, reducers, and partitioners. 
org.apache.hadoop.mapred.lib.aggregate Classes for performing various counting and aggregations. 
org.apache.hadoop.streaming Hadoop Streaming is a utility which allows users to create and run Map-Reduce jobs with any executables (e.g. 
org.apache.hadoop.tools Command-line tools for MapReduce. 
 

Uses of Mapper in org.apache.hadoop.contrib.index.example
 

Classes in org.apache.hadoop.contrib.index.example that implement Mapper
 class IdentityLocalAnalysis
          Identity local analysis maps inputs directly into outputs.
 class LineDocLocalAnalysis
          Convert LineDocTextAndOp to DocumentAndOp as required by ILocalAnalysis.
 

Uses of Mapper in org.apache.hadoop.contrib.index.mapred
 

Subinterfaces of Mapper in org.apache.hadoop.contrib.index.mapred
 interface ILocalAnalysis<K extends WritableComparable,V extends Writable>
          Application specific local analysis.
 

Classes in org.apache.hadoop.contrib.index.mapred that implement Mapper
 class IndexUpdateMapper<K extends WritableComparable,V extends Writable>
          This class applies local analysis on a key-value pair and then convert the result docid-operation pair to a shard-and-intermediate form pair.
 

Uses of Mapper in org.apache.hadoop.contrib.utils.join
 

Classes in org.apache.hadoop.contrib.utils.join that implement Mapper
 class DataJoinMapperBase
          This abstract class serves as the base class for the mapper class of a data join job.
 class DataJoinReducerBase
          This abstract class serves as the base class for the reducer class of a data join job.
 class JobBase
          A common base implementing some statics collecting mechanisms that are commonly used in a typical map/reduce job.
 

Uses of Mapper in org.apache.hadoop.mapred
 

Methods in org.apache.hadoop.mapred that return Mapper
protected  Mapper<K1,V1,K2,V2> MapRunner.getMapper()
           
 

Methods in org.apache.hadoop.mapred that return types with arguments of type Mapper
 Class<? extends Mapper> JobConf.getMapperClass()
          Deprecated. Get the Mapper class for the job.
 

Method parameters in org.apache.hadoop.mapred with type arguments of type Mapper
 void JobConf.setMapperClass(Class<? extends Mapper> theClass)
          Deprecated. Set the Mapper class for the job.
 

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

Classes in org.apache.hadoop.mapred.lib that implement Mapper
 class ChainMapper
          Deprecated. Use ChainMapper instead
 class FieldSelectionMapReduce<K,V>
          Deprecated. Use FieldSelectionMapper and FieldSelectionReducer instead
 class IdentityMapper<K,V>
          Deprecated. Use Mapper instead.
 class InverseMapper<K,V>
          Deprecated. Use InverseMapper instead.
 class RegexMapper<K>
          Deprecated. Use RegexMapper
 class TokenCountMapper<K>
          Deprecated. Use TokenCounterMapper instead.
 

Method parameters in org.apache.hadoop.mapred.lib with type arguments of type Mapper
static void MultipleInputs.addInputPath(JobConf conf, org.apache.hadoop.fs.Path path, Class<? extends InputFormat> inputFormatClass, Class<? extends Mapper> mapperClass)
          Deprecated. Add a Path with a custom InputFormat and Mapper to the list of inputs for the map-reduce job.
static
<K1,V1,K2,V2>
void
ChainMapper.addMapper(JobConf job, Class<? extends Mapper<K1,V1,K2,V2>> klass, Class<? extends K1> inputKeyClass, Class<? extends V1> inputValueClass, Class<? extends K2> outputKeyClass, Class<? extends V2> outputValueClass, boolean byValue, JobConf mapperConf)
          Deprecated. Adds a Mapper class to the chain job's JobConf.
static
<K1,V1,K2,V2>
void
ChainReducer.addMapper(JobConf job, Class<? extends Mapper<K1,V1,K2,V2>> klass, Class<? extends K1> inputKeyClass, Class<? extends V1> inputValueClass, Class<? extends K2> outputKeyClass, Class<? extends V2> outputValueClass, boolean byValue, JobConf mapperConf)
          Deprecated. Adds a Mapper class to the chain job's JobConf.
 

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

Classes in org.apache.hadoop.mapred.lib.aggregate that implement Mapper
 class ValueAggregatorCombiner<K1 extends WritableComparable,V1 extends Writable>
          Deprecated. Use ValueAggregatorCombiner instead
 class ValueAggregatorJobBase<K1 extends WritableComparable,V1 extends Writable>
          Deprecated. Use ValueAggregatorJobBase instead
 class ValueAggregatorMapper<K1 extends WritableComparable,V1 extends Writable>
          Deprecated. Use ValueAggregatorMapper instead
 class ValueAggregatorReducer<K1 extends WritableComparable,V1 extends Writable>
          Deprecated. Use ValueAggregatorReducer instead
 

Uses of Mapper in org.apache.hadoop.streaming
 

Classes in org.apache.hadoop.streaming that implement Mapper
 class PipeMapper
          A generic Mapper bridge.
 

Uses of Mapper in org.apache.hadoop.tools
 

Classes in org.apache.hadoop.tools that implement Mapper
static class Logalyzer.LogRegexMapper<K extends WritableComparable>
          A Mapper that extracts text matching a regular expression.
 



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