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

Class RStarTreeRangeQuery<O extends SpatialComparable>

java.lang.Object

de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.query.RStarTreeRangeQuery<O>

All Implemented Interfaces:

DatabaseQuery, RangeQuery<O>

Direct Known Subclasses:

EuclideanRStarTreeRangeQuery

@Reference(authors="J. Kuan, P. Lewis",
           title="Fast k nearest neighbour search for R-tree family",
           booktitle="Proc. Int. Conf Information, Communications and Signal Processing, ICICS 1997",
           url="https://doi.org/10.1109/ICICS.1997.652114",
           bibkey="doi:10.1109/ICICS.1997.652114")
public class RStarTreeRangeQuery<O extends SpatialComparable>
extends java.lang.Object
implements RangeQuery<O>

Instance of a range query for a particular spatial index.

Reference:

J. Kuan, P. Lewis
Fast k nearest neighbour search for R-tree family
Proc. Int. Conf Information, Communications and Signal Processing, ICICS 1997

Since:

0.4.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
protected SpatialPrimitiveDistanceFunction<? super O>	distanceFunction Spatial primitive distance function
protected Relation<? extends O>	relation Relation we query.
protected AbstractRStarTree<?,?,?>	tree The index to use

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
RStarTreeRangeQuery(AbstractRStarTree<?,?,?> tree, Relation<? extends O> relation, SpatialPrimitiveDistanceFunction<? super O> distanceFunction) Constructor.

Method Summary

Modifier and Type	Method and Description
DoubleDBIDList	getRangeForDBID(DBIDRef id, double range) Get the neighbors for a particular id in a given query range
void	getRangeForDBID(DBIDRef id, double range, ModifiableDoubleDBIDList result) Get the neighbors for a particular object in a given query range
DoubleDBIDList	getRangeForObject(O obj, double range) Get the neighbors for a particular object in a given query range
void	getRangeForObject(O obj, double range, ModifiableDoubleDBIDList result) Get the neighbors for a particular object in a given query range

Methods inherited from class java.lang.Object

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

Field Detail

tree

protected final AbstractRStarTree<?,?,?> tree

The index to use

distanceFunction

protected final SpatialPrimitiveDistanceFunction<? super O extends SpatialComparable> distanceFunction

Spatial primitive distance function

relation

protected Relation<? extends O extends SpatialComparable> relation

Relation we query.

Constructor Detail

RStarTreeRangeQuery

public RStarTreeRangeQuery(AbstractRStarTree<?,?,?> tree,
                           Relation<? extends O> relation,
                           SpatialPrimitiveDistanceFunction<? super O> distanceFunction)

Constructor.

Parameters:

tree - Index to use

relation - Data relation to query

distanceFunction - Distance function

Method Detail

getRangeForDBID

public DoubleDBIDList getRangeForDBID(DBIDRef id,
                                      double range)

Description copied from interface: RangeQuery

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

Specified by:

getRangeForDBID in interface RangeQuery<O extends SpatialComparable>

Parameters:

id - query object ID

range - Query range

Returns:

neighbors

getRangeForObject

public DoubleDBIDList getRangeForObject(O obj,
                                        double range)

Description copied from interface: RangeQuery

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

Specified by:

getRangeForObject in interface RangeQuery<O extends SpatialComparable>

Parameters:

obj - Query object

range - Query range

Returns:

neighbors

getRangeForDBID

public void getRangeForDBID(DBIDRef id,
                            double range,
                            ModifiableDoubleDBIDList result)

Description copied from interface: RangeQuery

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

Specified by:

getRangeForDBID in interface RangeQuery<O extends SpatialComparable>

Parameters:

id - query object ID

range - Query range

result - Neighbors output set

getRangeForObject

public void getRangeForObject(O obj,
                              double range,
                              ModifiableDoubleDBIDList result)

Description copied from interface: RangeQuery

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

Specified by:

getRangeForObject in interface RangeQuery<O extends SpatialComparable>

Parameters:

obj - Query object

range - Query range

result - Neighbors output set