Uses of Class

Packages that use Mapper
org.apache.hadoop.examples Hadoop example code. 

Uses of Mapper in org.apache.hadoop.examples

Subclasses of Mapper in org.apache.hadoop.examples
static class SecondarySort.MapClass
          Read two integers from each line and generate a key, value pair as ((left, right), right).
static class WordCount.TokenizerMapper

Uses of Mapper in org.apache.hadoop.mapreduce

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

Method parameters in org.apache.hadoop.mapreduce with type arguments of type Mapper
 void Job.setMapperClass(Class<? extends Mapper> cls)
          Set the Mapper for the job.

Uses of Mapper in org.apache.hadoop.mapreduce.lib.fieldsel

Subclasses of Mapper in org.apache.hadoop.mapreduce.lib.fieldsel
 class FieldSelectionMapper<K,V>
          This class implements a mapper class that can be used to perform field selections in a manner similar to unix cut.

Uses of Mapper in org.apache.hadoop.mapreduce.lib.input

Subclasses of Mapper in org.apache.hadoop.mapreduce.lib.input
 class DelegatingMapper<K1,V1,K2,V2>
          An Mapper that delegates behavior of paths to multiple other mappers.

Method parameters in org.apache.hadoop.mapreduce.lib.input with type arguments of type Mapper
static void MultipleInputs.addInputPath(Job job, Path path, Class<? extends InputFormat> inputFormatClass, Class<? extends Mapper> mapperClass)
          Add a Path with a custom InputFormat and Mapper to the list of inputs for the map-reduce job.

Uses of Mapper in

Subclasses of Mapper in
 class InverseMapper<K,V>
          A Mapper that swaps keys and values.
 class MultithreadedMapper<K1,V1,K2,V2>
          Multithreaded implementation for @link org.apache.hadoop.mapreduce.Mapper.
 class TokenCounterMapper
          Tokenize the input values and emit each word with a count of 1.

Methods in that return types with arguments of type Mapper
MultithreadedMapper.getMapperClass(JobContext job)
          Get the application's mapper class.

Method parameters in with type arguments of type Mapper
MultithreadedMapper.setMapperClass(Job job, Class<? extends Mapper<K1,V1,K2,V2>> cls)
          Set the application's mapper class.

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