Package uk.gov.gchq.gaffer.accumulostore.operation.hdfs.mapper

Class SampleDataForSplitPointsMapper<KEY_IN,VALUE_IN>

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<KEY_IN,VALUE_IN,KEY_OUT,VALUE_OUT>

uk.gov.gchq.gaffer.hdfs.operation.mapper.GafferMapper<KEY_IN,VALUE_IN,org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

uk.gov.gchq.gaffer.accumulostore.operation.hdfs.mapper.SampleDataForSplitPointsMapper<KEY_IN,VALUE_IN>

public class SampleDataForSplitPointsMapper<KEY_IN,VALUE_IN>
extends GafferMapper<KEY_IN,VALUE_IN,org.apache.accumulo.core.data.Key,org.apache.accumulo.core.data.Value>

Mapper class used for estimating the split points to ensure even distribution of data in Accumulo after initial insert.

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
SampleDataForSplitPointsMapper()

Method Summary

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

run

Methods inherited from class java.lang.Object

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

Constructor Detail

SampleDataForSplitPointsMapper

public SampleDataForSplitPointsMapper()