de.lmu.ifi.dbs.elki.database.query.rknn
Class AbstractRKNNQuery<O,D extends Distance<D>>

java.lang.Object
  de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery<O>
      de.lmu.ifi.dbs.elki.database.query.rknn.AbstractRKNNQuery<O,D>

All Implemented Interfaces:

DatabaseQuery, RKNNQuery<O,D>

Direct Known Subclasses:

LinearScanRKNNQuery, MkTreeRKNNQuery

public abstract class AbstractRKNNQuery<O,D extends Distance<D>>
extends AbstractDataBasedQuery<O>
implements RKNNQuery<O,D>

Instance for the query on a particular database.

Field Summary

protected DistanceQuery<O,D>

distanceQuery Hold the distance function to be used.

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

AbstractRKNNQuery(DistanceQuery<O,D> distanceQuery)
Constructor.

Method Summary

D	getDistanceFactory() Get the distance data type of the function.
abstract List<DistanceResultPair<D>>	getRKNNForDBID(DBID id, int k) Get the reverse k nearest neighbors for a particular id.

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.rknn.RKNNQuery

getRelation, getRKNNForBulkDBIDs, getRKNNForObject

Field Detail

distanceQuery

protected final DistanceQuery<O,D extends Distance<D>> distanceQuery

Hold the distance function to be used.

Constructor Detail

AbstractRKNNQuery

public AbstractRKNNQuery(DistanceQuery<O,D> distanceQuery)

Constructor.

Parameters:

distanceQuery - distance query

Method Detail

getRKNNForDBID

public abstract List<DistanceResultPair<D>> getRKNNForDBID(DBID id,
                                                           int k)

Description copied from interface: RKNNQuery

Get the reverse k nearest neighbors for a particular id.

Specified by:

getRKNNForDBID in interface RKNNQuery<O,D extends Distance<D>>

Parameters:

id - query object ID

k - number of neighbors requested

Returns:

reverse k nearest neighbors

getDistanceFactory

public D getDistanceFactory()

Description copied from interface: RKNNQuery

Get the distance data type of the function.

Specified by:

getDistanceFactory in interface RKNNQuery<O,D extends Distance<D>>