Package io.hgraphdb.mapreduce.index

Class HBaseIndexMapperBase

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.KeyValue>

io.hgraphdb.mapreduce.index.HBaseIndexMapperBase

Direct Known Subclasses:

HBaseIndexBulkMapperBase, HBaseIndexDirectMapperBase

public abstract class HBaseIndexMapperBase
extends org.apache.hadoop.hbase.mapreduce.TableMapper<org.apache.hadoop.hbase.io.ImmutableBytesWritable,org.apache.hadoop.hbase.KeyValue>

Abstract mapper that hands over rows from data table to the index table.

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
HBaseIndexMapperBase()

Method Summary

Modifier and Type	Method	Description
protected void	cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
protected abstract Iterator<? extends org.apache.hadoop.hbase.client.Mutation>	constructMutations(org.apache.hadoop.hbase.client.Result result)
HBaseGraph	getGraph()
IndexMetadata	getIndex()
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

map, run

Methods inherited from class java.lang.Object

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

Constructor Detail

HBaseIndexMapperBase

public HBaseIndexMapperBase()

Method Detail

getGraph

public HBaseGraph getGraph()

getIndex

public IndexMetadata getIndex()

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
              throws IOException,
                     InterruptedException

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.KeyValue>

Throws:

IOException

InterruptedException

constructMutations

protected abstract Iterator<? extends org.apache.hadoop.hbase.client.Mutation> constructMutations(org.apache.hadoop.hbase.client.Result result)
                                                                                           throws IOException,
                                                                                                  InterruptedException

Throws:

IOException

InterruptedException

cleanup

protected void cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
                throws IOException,
                       InterruptedException

Overrides:

cleanup 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.KeyValue>

Throws:

IOException

InterruptedException