Uses of Class
org.apache.hadoop.mapreduce.Mapper.Context

Packages that use Mapper.Context
org.apache.hadoop.mapreduce   
org.apache.hadoop.mapreduce.lib.aggregate   
org.apache.hadoop.mapreduce.lib.chain   
org.apache.hadoop.mapreduce.lib.fieldsel   
org.apache.hadoop.mapreduce.lib.input   
org.apache.hadoop.mapreduce.lib.map   
 

Uses of Mapper.Context in org.apache.hadoop.mapreduce
 

Methods in org.apache.hadoop.mapreduce that return Mapper.Context
static
<K1,V1,K2,V2>
Mapper.Context
ContextFactory.cloneMapContext(MapContext<K1,V1,K2,V2> context, org.apache.hadoop.conf.Configuration conf, RecordReader<K1,V1> reader, RecordWriter<K2,V2> writer)
          Copy a custom WrappedMapper.Context, optionally replacing the input and output.
 

Methods in org.apache.hadoop.mapreduce with parameters of type Mapper.Context
protected  void Mapper.cleanup(Mapper.Context context)
          Called once at the end of the task.
protected  void Mapper.map(KEYIN key, VALUEIN value, Mapper.Context context)
          Called once for each key/value pair in the input split.
 void Mapper.run(Mapper.Context context)
          Expert users can override this method for more complete control over the execution of the Mapper.
protected  void Mapper.setup(Mapper.Context context)
          Called once at the beginning of the task.
 

Uses of Mapper.Context in org.apache.hadoop.mapreduce.lib.aggregate
 

Methods in org.apache.hadoop.mapreduce.lib.aggregate with parameters of type Mapper.Context
 void ValueAggregatorMapper.map(K1 key, V1 value, Mapper.Context context)
          the map function.
 void ValueAggregatorMapper.setup(Mapper.Context context)
           
 

Uses of Mapper.Context in org.apache.hadoop.mapreduce.lib.chain
 

Methods in org.apache.hadoop.mapreduce.lib.chain with parameters of type Mapper.Context
 void ChainMapper.run(Mapper.Context context)
           
protected  void ChainMapper.setup(Mapper.Context context)
           
 

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

Methods in org.apache.hadoop.mapreduce.lib.fieldsel with parameters of type Mapper.Context
 void FieldSelectionMapper.map(K key, V val, Mapper.Context context)
          The identify function.
 void FieldSelectionMapper.setup(Mapper.Context context)
           
 

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

Methods in org.apache.hadoop.mapreduce.lib.input with parameters of type Mapper.Context
 void DelegatingMapper.run(Mapper.Context context)
           
protected  void DelegatingMapper.setup(Mapper.Context context)
           
 

Uses of Mapper.Context in org.apache.hadoop.mapreduce.lib.map
 

Subclasses of Mapper.Context in org.apache.hadoop.mapreduce.lib.map
 class WrappedMapper.Context
           
 

Methods in org.apache.hadoop.mapreduce.lib.map that return Mapper.Context
 Mapper.Context WrappedMapper.getMapContext(MapContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> mapContext)
          Get a wrapped WrappedMapper.Context for custom implementations.
 

Methods in org.apache.hadoop.mapreduce.lib.map with parameters of type Mapper.Context
 void RegexMapper.map(K key, org.apache.hadoop.io.Text value, Mapper.Context context)
           
 void InverseMapper.map(K key, V value, Mapper.Context context)
          The inverse function.
 void TokenCounterMapper.map(Object key, org.apache.hadoop.io.Text value, Mapper.Context context)
           
 void MultithreadedMapper.run(Mapper.Context context)
          Run the application's maps using a thread pool.
 void RegexMapper.setup(Mapper.Context context)
           
 



Copyright © 2014 Apache Software Foundation. All Rights Reserved.