Package org.apache.hadoop.hbase.mapred

Class TestMultiTableSnapshotInputFormat.Reducer

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.MultiTableInputFormatTestBase.ScanReducer

org.apache.hadoop.hbase.mapred.TestMultiTableSnapshotInputFormat.Reducer

All Implemented Interfaces:

Closeable, AutoCloseable, org.apache.hadoop.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

Enclosing class:

TestMultiTableSnapshotInputFormat

public static class TestMultiTableSnapshotInputFormat.Reducer
extends MultiTableInputFormatTestBase.ScanReducer
implements org.apache.hadoop.mapred.Reducer<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable>

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 org.apache.hadoop.mapred.JobConf	jobConf

Constructor Summary

Constructors

Constructor	Description
Reducer()

Method Summary

Modifier and Type	Method	Description
void	close()	Closes this stream and releases any system resources associated with it.
void	configure(org.apache.hadoop.mapred.JobConf jobConf)
void	reduce(org.apache.hadoop.hbase.io.ImmutableBytesWritable key, Iterator<org.apache.hadoop.hbase.io.ImmutableBytesWritable> values, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable> outputCollector, org.apache.hadoop.mapred.Reporter reporter)

Methods inherited from class org.apache.hadoop.hbase.mapreduce.MultiTableInputFormatTestBase.ScanReducer

cleanup, cleanup, makeAssertions, reduce

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

jobConf

private org.apache.hadoop.mapred.JobConf jobConf

Constructor Details

Reducer

public Reducer()

Method Details

reduce

public void reduce(org.apache.hadoop.hbase.io.ImmutableBytesWritable key,
 Iterator<org.apache.hadoop.hbase.io.ImmutableBytesWritable> values,
 org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.NullWritable,org.apache.hadoop.io.NullWritable> outputCollector,
 org.apache.hadoop.mapred.Reporter reporter)
            throws IOException

Specified by:

reduce in interface org.apache.hadoop.mapred.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

close

public void close()
           throws IOException

Closes this stream and releases any system resources associated with it. If the stream is already closed then invoking this method has no effect.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Throws:

IOException - if an I/O error occurs

configure

public void configure(org.apache.hadoop.mapred.JobConf jobConf)

Specified by:

configure in interface org.apache.hadoop.mapred.JobConfigurable