Package org.apache.hadoop.hbase.mapreduce

Class TestTableInputFormatScanBase.ScanMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Result,KEYOUT,VALUEOUT>

org.apache.hadoop.hbase.mapreduce.TableMapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable>

org.apache.hadoop.hbase.mapreduce.TestTableInputFormatScanBase.ScanMapper

Enclosing class:

TestTableInputFormatScanBase

public static class TestTableInputFormatScanBase.ScanMapper
extends org.apache.hadoop.hbase.mapreduce.TableMapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable>

Pass the key and value to reduce.

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor	Description
ScanMapper()

Method Summary

Modifier and Type	Method	Description
void	map(org.apache.hadoop.hbase.io.ImmutableBytesWritable key, org.apache.hadoop.hbase.client.Result value, org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Result,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)	Pass the key and value to reduce.

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 Details

ScanMapper

public ScanMapper()

Method Details

map

public void map(org.apache.hadoop.hbase.io.ImmutableBytesWritable key,
 org.apache.hadoop.hbase.client.Result value,
 org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Result,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable>.org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException,
InterruptedException

Pass the key and value to reduce.

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Result,org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.io.ImmutableBytesWritable>

Parameters:

key - The key, here "aaa", "aab" etc.

value - The value is the same as the key.

context - The task context.

Throws:

IOException - When reading the rows fails.

InterruptedException