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

Packages that use Reducer.Context
org.apache.hadoop.mapred   
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.reduce   
 

Uses of Reducer.Context in org.apache.hadoop.mapred
 

Methods in org.apache.hadoop.mapred that return Reducer.Context
protected static
<INKEY,INVALUE,OUTKEY,OUTVALUE>
Reducer.Context
Task.createReduceContext(Reducer<INKEY,INVALUE,OUTKEY,OUTVALUE> reducer, org.apache.hadoop.conf.Configuration job, TaskAttemptID taskId, RawKeyValueIterator rIter, Counter inputKeyCounter, Counter inputValueCounter, RecordWriter<OUTKEY,OUTVALUE> output, OutputCommitter committer, StatusReporter reporter, org.apache.hadoop.io.RawComparator<INKEY> comparator, Class<INKEY> keyClass, Class<INVALUE> valueClass)
           
 

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

Methods in org.apache.hadoop.mapreduce with parameters of type Reducer.Context
protected  void Reducer.cleanup(Reducer.Context context)
          Called once at the end of the task.
protected  void Reducer.reduce(KEYIN key, Iterable<VALUEIN> values, Reducer.Context context)
          This method is called once for each key.
 void Reducer.run(Reducer.Context context)
          Advanced application writers can use the Reducer.run(org.apache.hadoop.mapreduce.Reducer.Context) method to control how the reduce task works.
protected  void Reducer.setup(Reducer.Context context)
          Called once at the start of the task.
 

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

Methods in org.apache.hadoop.mapreduce.lib.aggregate with parameters of type Reducer.Context
 void ValueAggregatorCombiner.reduce(org.apache.hadoop.io.Text key, Iterable<org.apache.hadoop.io.Text> values, Reducer.Context context)
          Combines values for a given key.
 void ValueAggregatorReducer.reduce(org.apache.hadoop.io.Text key, Iterable<org.apache.hadoop.io.Text> values, Reducer.Context context)
           
 void ValueAggregatorReducer.setup(Reducer.Context context)
           
 

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

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

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

Methods in org.apache.hadoop.mapreduce.lib.fieldsel with parameters of type Reducer.Context
 void FieldSelectionReducer.reduce(org.apache.hadoop.io.Text key, Iterable<org.apache.hadoop.io.Text> values, Reducer.Context context)
           
 void FieldSelectionReducer.setup(Reducer.Context context)
           
 

Uses of Reducer.Context in org.apache.hadoop.mapreduce.lib.reduce
 

Subclasses of Reducer.Context in org.apache.hadoop.mapreduce.lib.reduce
 class WrappedReducer.Context
           
 

Methods in org.apache.hadoop.mapreduce.lib.reduce that return Reducer.Context
 Reducer.Context WrappedReducer.getReducerContext(ReduceContext<KEYIN,VALUEIN,KEYOUT,VALUEOUT> reduceContext)
          A a wrapped WrappedReducer.Context for custom implementations.
 

Methods in org.apache.hadoop.mapreduce.lib.reduce with parameters of type Reducer.Context
 void IntSumReducer.reduce(Key key, Iterable<org.apache.hadoop.io.IntWritable> values, Reducer.Context context)
           
 void LongSumReducer.reduce(KEY key, Iterable<org.apache.hadoop.io.LongWritable> values, Reducer.Context context)
           
 



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