de.lmu.ifi.dbs.elki.index
Interface KNNIndex<O>

Type Parameters:

O - Object type

All Superinterfaces:

Index, Result

All Known Implementing Classes:

AbstractMaterializeKNNPreprocessor, DeLiCluTreeIndex, MaterializeKNNAndRKNNPreprocessor, MaterializeKNNPreprocessor, MetricalIndexApproximationMaterializeKNNPreprocessor, MkAppTreeIndex, MkCoPTreeIndex, MkMaxTreeIndex, MkTabTreeIndex, MTreeIndex, PartitionApproximationMaterializeKNNPreprocessor, RStarTreeIndex, SpatialApproximationMaterializeKNNPreprocessor

public interface KNNIndex<O>
extends Index

Index with support for kNN queries.

Method Summary

<D extends Distance<D>> KNNQuery<O,D>

getKNNQuery(DistanceQuery<O,D> distanceQuery, Object... hints) Get a KNN query object for the given distance query and k.

Methods inherited from interface de.lmu.ifi.dbs.elki.index.Index

delete, deleteAll, getPageFileStatistics, insert, insertAll

Methods inherited from interface de.lmu.ifi.dbs.elki.result.Result

getLongName, getShortName

Method Detail

getKNNQuery

<D extends Distance<D>> KNNQuery<O,D> getKNNQuery(DistanceQuery<O,D> distanceQuery,
                                                  Object... hints)

Get a KNN query object for the given distance query and k. This function MAY return null, when the given distance is not supported!

Type Parameters:

D - Distance type

Parameters:

distanceQuery - Distance query

hints - Hints for the optimizer

Returns:

KNN Query object or null