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

Class RStarTreeUtil

java.lang.Object

de.lmu.ifi.dbs.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 and Description
private	RStarTreeUtil() Private constructor.

Method Summary

Modifier and Type	Method and Description
static <O extends SpatialComparable> KNNQuery<O>	getKNNQuery(AbstractRStarTree<?,?,?> tree, SpatialDistanceQuery<O> distanceQuery, java.lang.Object... hints) Get an RTree knn query, using an optimized double implementation when possible.
static <O extends SpatialComparable> RangeQuery<O>	getRangeQuery(AbstractRStarTree<?,?,?> tree, SpatialDistanceQuery<O> distanceQuery, java.lang.Object... hints) Get an RTree range query, using an optimized double implementation when possible.

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 SpatialComparable> RangeQuery<O> getRangeQuery(AbstractRStarTree<?,?,?> tree,
                                                                        SpatialDistanceQuery<O> distanceQuery,
                                                                        java.lang.Object... hints)

Get an RTree range query, using an optimized double implementation when possible.

Type Parameters:

O - Object type

Parameters:

tree - Tree to query

distanceQuery - distance query

hints - Optimizer hints

Returns:

Query object

getKNNQuery

public static <O extends SpatialComparable> KNNQuery<O> getKNNQuery(AbstractRStarTree<?,?,?> tree,
                                                                    SpatialDistanceQuery<O> distanceQuery,
                                                                    java.lang.Object... hints)

Get an RTree knn query, using an optimized double implementation when possible.

Type Parameters:

O - Object type

Parameters:

tree - Tree to query

distanceQuery - distance query

hints - Optimizer hints

Returns:

Query object