org.apache.hadoop.hbase.mapreduce

Class Import.KeyValueImporter

java.lang.Object

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

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

org.apache.hadoop.hbase.mapreduce.Import.KeyValueImporter

Enclosing class:

Import

public static class Import.KeyValueImporter
extends TableMapper<ImmutableBytesWritable,KeyValue>

A mapper that just writes out KeyValues.

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor and Description
Import.KeyValueImporter()

Method Summary

Methods

Modifier and Type	Method and Description
void	map(ImmutableBytesWritable row, Result value, org.apache.hadoop.mapreduce.Mapper.Context context)
void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

cleanup, run

Methods inherited from class java.lang.Object

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

Constructor Detail

Import.KeyValueImporter

public Import.KeyValueImporter()

Method Detail

map

public void map(ImmutableBytesWritable row,
       Result value,
       org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,ImmutableBytesWritable,KeyValue>

Parameters:

row - The current table row key.

value - The columns.

context - The current context.

Throws:

IOException - When something is broken with the data.

setup

public void setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<ImmutableBytesWritable,Result,ImmutableBytesWritable,KeyValue>