oracle.spatial.hadoop.vector.mapred

Class SpatialHierarchicalCountMapper<K,V>

java.lang.Object

org.apache.hadoop.mapred.MapReduceBase

oracle.spatial.hadoop.vector.mapred.AbstractSpatialHierarchicalMapper<K,V,org.apache.hadoop.io.LongWritable>

oracle.spatial.hadoop.vector.mapred.SpatialHierarchicalCountMapper<K,V>

Type Parameters:

K -

V -

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.Text,RTreeWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable>

public class SpatialHierarchicalCountMapper<K,V>
extends AbstractSpatialHierarchicalMapper<K,V,org.apache.hadoop.io.LongWritable>

This implementation of AbstractSpatialHierarchicalMapper outputs as value a single count for each hierarchical entry.

Field Summary

Fields inherited from class oracle.spatial.hadoop.vector.mapred.AbstractSpatialHierarchicalMapper

hierInfo, maxLevel, minLevel, outKey, searchMultiLevels, spatialOpConf

Constructor Summary

Constructors

Constructor and Description
SpatialHierarchicalCountMapper()

Method Summary

Modifier and Type	Method and Description
protected org.apache.hadoop.io.LongWritable	getOutValue(RecordInfo matchingRecordInfo) Given a RecordInfo instance representing a record that previously matched a hierarchy entry, returns the output value

Methods inherited from class oracle.spatial.hadoop.vector.mapred.AbstractSpatialHierarchicalMapper

configure, map, mapHierarchicalResults

Methods inherited from class org.apache.hadoop.mapred.MapReduceBase

close

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Closeable

close

Constructor Detail

SpatialHierarchicalCountMapper

public SpatialHierarchicalCountMapper()

Method Detail

getOutValue

protected org.apache.hadoop.io.LongWritable getOutValue(RecordInfo matchingRecordInfo)

Description copied from class: AbstractSpatialHierarchicalMapper

Given a RecordInfo instance representing a record that previously matched a hierarchy entry, returns the output value

Specified by:

getOutValue in class AbstractSpatialHierarchicalMapper<K,V,org.apache.hadoop.io.LongWritable>

Parameters:

matchingRecordInfo - an instance of RecordInfo

Returns:

a value used as the output value