org.apache.hadoop.hbase.mapreduce

Class Import.Importer

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.client.Mutation>

org.apache.hadoop.hbase.mapreduce.Import.Importer

Enclosing class:

Import

public static class Import.Importer
extends TableMapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.client.Mutation>

Write table content out to files in hdfs.

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
Importer()

Method Summary

Modifier and Type	Method and Description
protected void	addPutToKv(org.apache.hadoop.hbase.client.Put put, org.apache.hadoop.hbase.Cell kv)
void	map(org.apache.hadoop.hbase.io.ImmutableBytesWritable row, org.apache.hadoop.hbase.client.Result value, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	processKV(org.apache.hadoop.hbase.io.ImmutableBytesWritable key, org.apache.hadoop.hbase.client.Result result, org.apache.hadoop.mapreduce.Mapper.Context context, org.apache.hadoop.hbase.client.Put put, org.apache.hadoop.hbase.client.Delete delete)
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

Importer

public Importer()

Method Detail

map

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

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.client.Mutation>

Parameters:

row - The current table row key.

value - The columns.

context - The current context.

Throws:

IOException - When something is broken with the data.

processKV

protected void processKV(org.apache.hadoop.hbase.io.ImmutableBytesWritable key,
                         org.apache.hadoop.hbase.client.Result result,
                         org.apache.hadoop.mapreduce.Mapper.Context context,
                         org.apache.hadoop.hbase.client.Put put,
                         org.apache.hadoop.hbase.client.Delete delete)
                  throws IOException,
                         InterruptedException

Throws:

IOException

InterruptedException

addPutToKv

protected void addPutToKv(org.apache.hadoop.hbase.client.Put put,
                          org.apache.hadoop.hbase.Cell kv)
                   throws IOException

Throws:

IOException

setup

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

Overrides:

setup 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.client.Mutation>