Package org.apache.druid.indexer

Class DetermineHashedPartitionsJob.DetermineCardinalityMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<Object,Object,KEYOUT,VALUEOUT>

org.apache.druid.indexer.HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

org.apache.druid.indexer.DetermineHashedPartitionsJob.DetermineCardinalityMapper

Enclosing class:

DetermineHashedPartitionsJob

public static class DetermineHashedPartitionsJob.DetermineCardinalityMapper
extends HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields inherited from class org.apache.druid.indexer.HadoopDruidIndexerMapper

granularitySpec

Constructor Summary

Constructors

Constructor	Description
DetermineCardinalityMapper()

Method Summary

Modifier and Type	Method	Description
protected void	innerMap(org.apache.druid.data.input.InputRow inputRow, org.apache.hadoop.mapreduce.Mapper.Context context)
void	run(org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Methods inherited from class org.apache.druid.indexer.HadoopDruidIndexerMapper

getConfig, map

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

cleanup

Methods inherited from class java.lang.Object

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

Constructor Detail

DetermineCardinalityMapper

public DetermineCardinalityMapper()

Method Detail

setup

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

Overrides:

setup in class HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Throws:

IOException

InterruptedException

innerMap

protected void innerMap(org.apache.druid.data.input.InputRow inputRow,
                        org.apache.hadoop.mapreduce.Mapper.Context context)
                 throws IOException

Specified by:

innerMap in class HadoopDruidIndexerMapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Throws:

IOException

run

public void run(org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException,
                InterruptedException

Overrides:

run in class org.apache.hadoop.mapreduce.Mapper<Object,Object,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.BytesWritable>

Throws:

IOException

InterruptedException