de.lmu.ifi.dbs.elki.distance.distancefunction
Class AbstractIndexBasedDistanceFunction.Instance<O,I extends Index,D extends Distance<D>,F extends DistanceFunction<? super O,D>>

java.lang.Object
  de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery<O>
      de.lmu.ifi.dbs.elki.database.query.distance.AbstractDistanceQuery<O,D>
          de.lmu.ifi.dbs.elki.database.query.distance.AbstractDatabaseDistanceQuery<O,D>
              de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractIndexBasedDistanceFunction.Instance<O,I,D,F>

Type Parameters:

O - Object type

I - Index type

D - Distance type

F - Distance function type

All Implemented Interfaces:

DatabaseQuery, DistanceQuery<O,D>, IndexBasedDistanceFunction.Instance<O,I,D>

Direct Known Subclasses:

AbstractPreferenceVectorBasedCorrelationDistanceFunction.Instance, ERiCDistanceFunction.Instance, LocallyWeightedDistanceFunction.Instance, PCABasedCorrelationDistanceFunction.Instance, SharedNearestNeighborJaccardDistanceFunction.Instance, SubspaceDistanceFunction.Instance

Enclosing class:

AbstractIndexBasedDistanceFunction<O,I extends Index,D extends Distance<D>>

public abstract static class AbstractIndexBasedDistanceFunction.Instance<O,I extends Index,D extends Distance<D>,F extends DistanceFunction<? super O,D>>
extends AbstractDatabaseDistanceQuery<O,D>
implements IndexBasedDistanceFunction.Instance<O,I,D>

The actual instance bound to a particular database.

Field Summary

protected I	index Index we use
protected F	parent Our parent distance function

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

AbstractIndexBasedDistanceFunction.Instance(Relation<O> database, I index, F parent)
Constructor.

Method Summary

F	getDistanceFunction() Get the inner distance function.
I	getIndex() Get the index used.

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.distance.AbstractDatabaseDistanceQuery

distance, distance, distance

Methods inherited from class de.lmu.ifi.dbs.elki.database.query.distance.AbstractDistanceQuery

distance, getDistanceFactory, infiniteDistance, nullDistance, undefinedDistance

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.distance.DistanceQuery

distance, distance, distance, distance, getDistanceFactory, getRelation, infiniteDistance, nullDistance, undefinedDistance

Field Detail

index

protected final I extends Index index

Index we use

parent

protected F extends DistanceFunction<? super O,D> parent

Our parent distance function

Constructor Detail

AbstractIndexBasedDistanceFunction.Instance

public AbstractIndexBasedDistanceFunction.Instance(Relation<O> database,
                                                   I index,
                                                   F parent)

Constructor.

Parameters:

database - Database

index - Index to use

parent - Parent distance function

Method Detail

getIndex

public I getIndex()

Description copied from interface: IndexBasedDistanceFunction.Instance

Get the index used.

Specified by:

getIndex in interface IndexBasedDistanceFunction.Instance<O,I extends Index,D extends Distance<D>>

Returns:

the index used

getDistanceFunction

public F getDistanceFunction()

Description copied from interface: DistanceQuery

Get the inner distance function.

Specified by:

getDistanceFunction in interface DistanceQuery<O,D extends Distance<D>>

Returns:

Distance function