de.lmu.ifi.dbs.elki.database.query.distance

Interface DatabaseDistanceQuery<O>

Type Parameters:

O - Database object type.

All Superinterfaces:

DatabaseQuery, DistanceQuery<O>

All Known Subinterfaces:

IndexBasedDistanceFunction.Instance<T,I>

All Known Implementing Classes:

AbstractDatabaseDistanceFunction.Instance, AbstractIndexBasedDistanceFunction.Instance, AbstractSimilarityAdapter.Instance, ArccosSimilarityAdapter.Instance, DBIDDistanceQuery, DBIDRangeDistanceQuery, LinearAdapterLinear.Instance, LnSimilarityAdapter.Instance, SharedNearestNeighborJaccardDistanceFunction.Instance

public interface DatabaseDistanceQuery<O>
extends DistanceQuery<O>

Run a database query in a database context.

Since:

0.4.0

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

Method Summary

Modifier and Type	Method and Description
default double	distance(DBIDRef id1, O o2) Returns the distance between the two objects specified by their object ids.
default double	distance(O o1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
default double	distance(O o1, O o2) Returns the distance between the two objects specified by their object ids.

Methods inherited from interface de.lmu.ifi.dbs.elki.database.query.distance.DistanceQuery

distance, getDistanceFunction, getRelation

Method Detail

distance

default 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

default 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

default 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