Package elki.index.tree.spatial.rstarvariants.query

Class RStarTreeUtil

java.lang.Object

elki.index.tree.spatial.rstarvariants.query.RStarTreeUtil

public final class RStarTreeUtil
extends java.lang.Object

Utility class for RStar trees.

Since:

0.4.0

Author:

Erich Schubert

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RStarTreeUtil()	Private constructor.

Method Summary

Modifier and Type	Method	Description
static <O extends elki.data.spatial.SpatialComparable> elki.database.query.PrioritySearcher<O>	getDistancePrioritySearcher(AbstractRStarTree<?,?,?> tree, elki.database.query.distance.SpatialDistanceQuery<O> distanceQuery, java.lang.Object... hints)	Get an RTree priority searcher.
static <O extends elki.data.spatial.SpatialComparable> elki.database.query.knn.KNNSearcher<O>	getKNNQuery(AbstractRStarTree<?,?,?> tree, elki.database.query.distance.SpatialDistanceQuery<O> distanceQuery, java.lang.Object... hints)	Get an RTree knn query, using an optimized version for Euclidean distances.
static <O extends elki.data.spatial.SpatialComparable> elki.database.query.range.RangeSearcher<O>	getRangeQuery(AbstractRStarTree<?,?,?> tree, elki.database.query.distance.SpatialDistanceQuery<O> distanceQuery, java.lang.Object... hints)	Get an RTree range query, using an optimized version for Euclidean distances.

Methods inherited from class java.lang.Object

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

Constructor Detail

RStarTreeUtil

private RStarTreeUtil()

Private constructor. Static methods only.

Method Detail

getRangeQuery

public static <O extends elki.data.spatial.SpatialComparable> elki.database.query.range.RangeSearcher<O> getRangeQuery(AbstractRStarTree<?,?,?> tree,
                                                                                                                       elki.database.query.distance.SpatialDistanceQuery<O> distanceQuery,
                                                                                                                       java.lang.Object... hints)

Get an RTree range query, using an optimized version for Euclidean distances.

Type Parameters:

O - Object type

Parameters:

tree - Tree to query

distanceQuery - distance query

hints - Optimizer hints

Returns:

Query object

getKNNQuery

public static <O extends elki.data.spatial.SpatialComparable> elki.database.query.knn.KNNSearcher<O> getKNNQuery(AbstractRStarTree<?,?,?> tree,
                                                                                                                 elki.database.query.distance.SpatialDistanceQuery<O> distanceQuery,
                                                                                                                 java.lang.Object... hints)

Get an RTree knn query, using an optimized version for Euclidean distances.

Type Parameters:

O - Object type

Parameters:

tree - Tree to query

distanceQuery - distance query

hints - Optimizer hints

Returns:

Query object

getDistancePrioritySearcher

public static <O extends elki.data.spatial.SpatialComparable> elki.database.query.PrioritySearcher<O> getDistancePrioritySearcher(AbstractRStarTree<?,?,?> tree,
                                                                                                                                  elki.database.query.distance.SpatialDistanceQuery<O> distanceQuery,
                                                                                                                                  java.lang.Object... hints)

Get an RTree priority searcher.

Type Parameters:

O - Object type

Parameters:

tree - Tree to query

distanceQuery - distance query

hints - Optimizer hints

Returns:

Query object