de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.query

Class GenericRStarTreeRangeQuery<O extends SpatialComparable,D extends Distance<D>>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery<O>

de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery<O,D>

de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.query.GenericRStarTreeRangeQuery<O,D>

All Implemented Interfaces:

DatabaseQuery, RangeQuery<O,D>

public class GenericRStarTreeRangeQuery<O extends SpatialComparable,D extends Distance<D>>
extends AbstractDistanceRangeQuery<O,D>

Instance of a range query for a particular spatial index.

Field Summary

Fields

Modifier and Type	Field and Description
protected SpatialPrimitiveDistanceFunction<? super O,D>	distanceFunction Spatial primitive distance function
protected AbstractRStarTree<?,?>	tree The index to use

Fields inherited from class de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery

distanceQuery

Fields inherited from class de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery

relation

Fields inherited from interface de.lmu.ifi.dbs.elki.database.query.DatabaseQuery

HINT_BULK, HINT_EXACT, HINT_HEAVY_USE, HINT_NO_CACHE, HINT_OPTIMIZED_ONLY, HINT_SINGLE

Constructor Summary

Constructors

Constructor and Description
GenericRStarTreeRangeQuery(AbstractRStarTree<?,?> tree, SpatialDistanceQuery<O,D> distanceQuery) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected List<DistanceResultPair<D>>	doRangeQuery(O object, D epsilon) Perform the actual query process.
List<DistanceResultPair<D>>	getRangeForDBID(DBID id, D range) Get the nearest neighbors for a particular id in a given query range
List<DistanceResultPair<D>>	getRangeForObject(O obj, D range) Get the nearest neighbors for a particular object in a given query range

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.range.AbstractDistanceRangeQuery

getDistanceFactory, getRangeForBulkDBIDs

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery

getRelation

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.database.query.range.RangeQuery

getRelation

Field Detail

tree

protected final AbstractRStarTree<?,?> tree

The index to use

distanceFunction

protected final SpatialPrimitiveDistanceFunction<? super O extends SpatialComparable,D extends Distance<D>> distanceFunction

Spatial primitive distance function

Constructor Detail

GenericRStarTreeRangeQuery

public GenericRStarTreeRangeQuery(AbstractRStarTree<?,?> tree,
                          SpatialDistanceQuery<O,D> distanceQuery)

Constructor.

Parameters:

tree - Index to use

distanceQuery - Distance query to use

Method Detail

doRangeQuery

protected List<DistanceResultPair<D>> doRangeQuery(O object,
                                       D epsilon)

Perform the actual query process.

Parameters:

object - Query object

epsilon - Query range

Returns:

Objects contained in query range.

getRangeForObject

public List<DistanceResultPair<D>> getRangeForObject(O obj,
                                            D range)

Description copied from interface: RangeQuery

Get the nearest neighbors for a particular object in a given query range

Specified by:

getRangeForObject in interface RangeQuery<O extends SpatialComparable,D extends Distance<D>>

Specified by:

getRangeForObject in class AbstractDistanceRangeQuery<O extends SpatialComparable,D extends Distance<D>>

Parameters:

obj - Query object

range - Query range

Returns:

neighbors

getRangeForDBID

public List<DistanceResultPair<D>> getRangeForDBID(DBID id,
                                          D range)

Description copied from interface: RangeQuery

Get the nearest neighbors for a particular id in a given query range

Specified by:

getRangeForDBID in interface RangeQuery<O extends SpatialComparable,D extends Distance<D>>

Specified by:

getRangeForDBID in class AbstractDistanceRangeQuery<O extends SpatialComparable,D extends Distance<D>>

Parameters:

id - query object ID

range - Query range

Returns:

neighbors