CellCounter.CellCounterMapper (Apache HBase 1.2.12 API)

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java.lang.Object
- org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,KEYOUT,VALUEOUT>
- - org.apache.hadoop.hbase.mapreduce.TableMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>
  - - org.apache.hadoop.hbase.mapreduce.CellCounter.CellCounterMapper

Enclosing class:: CellCounter

static class CellCounter.CellCounterMapper
extends TableMapper<org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>

Mapper that runs the count.

- Nested Class Summary
  
  Nested Classes
  Modifier and Type Class and Description
  
  static class CellCounter.CellCounterMapper.Counters
  Counter enumeration to count the actual rows.
  - Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper
    org.apache.hadoop.mapreduce.Mapper.Context
- Constructor Summary
  
  Constructors
  Constructor and Description
  
  CellCounter.CellCounterMapper()
- Method Summary
  
  Methods
  Modifier and Type Method and Description
  
  void map(ImmutableBytesWritable row, Result values, org.apache.hadoop.mapreduce.Mapper.Context context)
  Maps the data.
  - Methods inherited from class org.apache.hadoop.mapreduce.Mapper
    cleanup, run, setup
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CellCounter.CellCounterMapper
```
CellCounter.CellCounterMapper()
```
- Method Detail
  - map
```
public void map(ImmutableBytesWritable row,
       Result values,
       org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException
```
    Maps the data.
    
    Overrides:
    
    map in class org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,org.apache.hadoop.io.Text,org.apache.hadoop.io.IntWritable>
    
    Parameters:
    row - The current table row key.
    values - The columns.
    context - The current context.
    
    Throws:
    
    IOException - When something is broken with the data.
    See Also:
    org.apache.hadoop.mapreduce.Mapper#map(KEYIN, VALUEIN, org.apache.hadoop.mapreduce.Mapper.Context)

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