org.locationtech.geowave.analytic.partitioner

Class AdapterBasedPartitioner

java.lang.Object

org.locationtech.geowave.analytic.partitioner.AbstractPartitioner<AdapterBasedPartitioner.AdapterDataEntry>

org.locationtech.geowave.analytic.partitioner.AdapterBasedPartitioner

All Implemented Interfaces:

Serializable, Partitioner<AdapterBasedPartitioner.AdapterDataEntry>

public class AdapterBasedPartitioner
extends AbstractPartitioner<AdapterBasedPartitioner.AdapterDataEntry>
implements Partitioner<AdapterBasedPartitioner.AdapterDataEntry>, Serializable

This class uses the DataTypeAdapter to decode the dimension fields to be indexed. Although seemingly more flexible than the OrthodromicDistancePartitioner, handling different types of data entries, the assumption is that each object decode by the adapter provides the fields required according to the supplied model.

The user provides the distances per dimension. It us up to the user to convert geographic distance into distance in degrees per longitude and latitude.

This class depends on an AdapterStore. Since an AdapterStore is not Serializable, the dependency is transient requiring initialization after serialization AdapterBasedPartitioner#initialize(ConfigurationWrapper)

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AdapterBasedPartitioner.AdapterDataEntry

Nested classes/interfaces inherited from class org.locationtech.geowave.analytic.partitioner.AbstractPartitioner

AbstractPartitioner.NumericDataHolder

Nested classes/interfaces inherited from interface org.locationtech.geowave.analytic.partitioner.Partitioner

Partitioner.PartitionData, Partitioner.PartitionDataCallback

Constructor Summary

Constructors

Constructor and Description
AdapterBasedPartitioner()
AdapterBasedPartitioner(org.locationtech.geowave.core.store.index.CommonIndexModel indexModel, double[] distancesPerDimension, org.locationtech.geowave.core.store.adapter.TransientAdapterStore adapterStore)

Method Summary

Modifier and Type	Method and Description
protected AbstractPartitioner.NumericDataHolder	getNumericData(AdapterBasedPartitioner.AdapterDataEntry entry)
protected void	init()
void	initialize(org.apache.hadoop.mapreduce.JobContext context, Class<?> scope)
protected org.locationtech.geowave.core.index.sfc.data.MultiDimensionalNumericData[]	querySet(org.locationtech.geowave.core.index.sfc.data.MultiDimensionalNumericData dimensionsData, double[] distances)
void	setup(PropertyManagement runTimeProperties, Class<?> scope, org.apache.hadoop.conf.Configuration configuration)

Methods inherited from class org.locationtech.geowave.analytic.partitioner.AbstractPartitioner

addPartitions, equals, getCubeIdentifiers, getDistancePerDimension, getIndex, getParameters, getRangesForPartition, hashCode, initialize, initIndex, partition

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.locationtech.geowave.analytic.partitioner.Partitioner

getCubeIdentifiers, getParameters, partition

Constructor Detail

AdapterBasedPartitioner

public AdapterBasedPartitioner()

AdapterBasedPartitioner

public AdapterBasedPartitioner(org.locationtech.geowave.core.store.index.CommonIndexModel indexModel,
                               double[] distancesPerDimension,
                               org.locationtech.geowave.core.store.adapter.TransientAdapterStore adapterStore)

Method Detail

getNumericData

protected AbstractPartitioner.NumericDataHolder getNumericData(AdapterBasedPartitioner.AdapterDataEntry entry)

Specified by:

getNumericData in class AbstractPartitioner<AdapterBasedPartitioner.AdapterDataEntry>

init

protected void init()

initialize

public void initialize(org.apache.hadoop.mapreduce.JobContext context,
                       Class<?> scope)
                throws IOException

Specified by:

initialize in interface Partitioner<AdapterBasedPartitioner.AdapterDataEntry>

Overrides:

initialize in class AbstractPartitioner<AdapterBasedPartitioner.AdapterDataEntry>

Throws:

IOException

setup

public void setup(PropertyManagement runTimeProperties,
                  Class<?> scope,
                  org.apache.hadoop.conf.Configuration configuration)

Specified by:

setup in interface Partitioner<AdapterBasedPartitioner.AdapterDataEntry>

Overrides:

setup in class AbstractPartitioner<AdapterBasedPartitioner.AdapterDataEntry>

querySet

protected org.locationtech.geowave.core.index.sfc.data.MultiDimensionalNumericData[] querySet(org.locationtech.geowave.core.index.sfc.data.MultiDimensionalNumericData dimensionsData,
                                                                                              double[] distances)