de.lmu.ifi.dbs.elki.index.distancematrix

Class PrecomputedDistanceMatrix.PrecomputedDistanceQuery

java.lang.Object

de.lmu.ifi.dbs.elki.index.distancematrix.PrecomputedDistanceMatrix.PrecomputedDistanceQuery

All Implemented Interfaces:

DatabaseQuery, DistanceQuery<O>

Enclosing class:

PrecomputedDistanceMatrix<O>

private class PrecomputedDistanceMatrix.PrecomputedDistanceQuery
extends java.lang.Object
implements DistanceQuery<O>

Distance query using the precomputed matrix.

Author:

Erich Schubert

Field Summary

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

Constructors

Modifier	Constructor and Description
private	PrecomputedDistanceQuery()

Method Summary

Modifier and Type	Method and Description
double	distance(DBIDRef id1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
double	distance(DBIDRef id1, O o2) Returns the distance between the two objects specified by their object ids.
double	distance(O o1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
double	distance(O o1, O o2) Returns the distance between the two objects specified by their object ids.
DistanceFunction<? super O>	getDistanceFunction() Get the inner distance function.
Relation<? extends O>	getRelation() Access the underlying data query.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrecomputedDistanceQuery

private PrecomputedDistanceQuery()

Method Detail

distance

public double distance(DBIDRef id1,
                       DBIDRef id2)

Description copied from interface: DistanceQuery

Returns the distance between the two objects specified by their object ids.

Specified by:

distance in interface DistanceQuery<O>

Parameters:

id1 - first object id

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

distance

public double distance(O o1,
                       DBIDRef id2)

Description copied from interface: DistanceQuery

Returns the distance between the two objects specified by their object ids.

Specified by:

distance in interface DistanceQuery<O>

Parameters:

o1 - first object

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

distance

public double distance(DBIDRef id1,
                       O o2)

Description copied from interface: DistanceQuery

Returns the distance between the two objects specified by their object ids.

Specified by:

distance in interface DistanceQuery<O>

Parameters:

id1 - first object id

o2 - second object

Returns:

the distance between the two objects specified by their object ids

distance

public double distance(O o1,
                       O o2)

Description copied from interface: DistanceQuery

Returns the distance between the two objects specified by their object ids.

Specified by:

distance in interface DistanceQuery<O>

Parameters:

o1 - first object

o2 - second object

Returns:

the distance between the two objects specified by their object ids

getDistanceFunction

public DistanceFunction<? super O> getDistanceFunction()

Description copied from interface: DistanceQuery

Get the inner distance function.

Specified by:

getDistanceFunction in interface DistanceQuery<O>

Returns:

Distance function

getRelation

public Relation<? extends O> getRelation()

Description copied from interface: DistanceQuery

Access the underlying data query.

Specified by:

getRelation in interface DistanceQuery<O>

Returns:

data query in use