Package org.apache.hadoop.hbase.mapreduce

Class TestTableInputFormatScanBase.ScanReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

org.apache.hadoop.hbase.mapreduce.TestTableInputFormatScanBase.ScanReducer

Enclosing class:

TestTableInputFormatScanBase

public static class TestTableInputFormatScanBase.ScanReducer
extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Checks the last and first key seen against the scanner boundaries.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer

org.apache.hadoop.mapreduce.Reducer.Context

Field Summary

Fields

Modifier and Type	Field	Description
private String	first
private String	last

Constructor Summary

Constructors

Constructor	Description
ScanReducer()

Method Summary

Modifier and Type	Method	Description
protected void	cleanup(org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>.org.apache.hadoop.mapreduce.Reducer.Context context)
protected void	reduce(org.apache.hadoop.hbase.io.ImmutableBytesWritable key, Iterable<org.apache.hadoop.hbase.io.ImmutableBytesWritable> values, org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>.org.apache.hadoop.mapreduce.Reducer.Context context)

Methods inherited from class org.apache.hadoop.mapreduce.Reducer

run, setup

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

first

private String first

last

private String last

Constructor Details

ScanReducer

public ScanReducer()

Method Details

reduce

protected void reduce(org.apache.hadoop.hbase.io.ImmutableBytesWritable key,
 Iterable<org.apache.hadoop.hbase.io.ImmutableBytesWritable> values,
 org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>.org.apache.hadoop.mapreduce.Reducer.Context context)
               throws IOException,
InterruptedException

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

InterruptedException

cleanup

protected void cleanup(org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>.org.apache.hadoop.mapreduce.Reducer.Context context)
                throws IOException,
InterruptedException

Overrides:

cleanup in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Throws:

IOException

InterruptedException