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

Class AbstractDatabaseDistanceQuery<O>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.distance.AbstractDistanceQuery<O>

de.lmu.ifi.dbs.elki.database.query.distance.AbstractDatabaseDistanceQuery<O>

Type Parameters:

O - Database object type.

All Implemented Interfaces:

DatabaseQuery, DistanceQuery<O>

Direct Known Subclasses:

AbstractDatabaseDistanceFunction.Instance, AbstractIndexBasedDistanceFunction.Instance, DBIDDistanceQuery

public abstract class AbstractDatabaseDistanceQuery<O>
extends AbstractDistanceQuery<O>

Run a database query in a database context.

Author:

Erich Schubert

Field Summary

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

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

Constructors

Constructor and Description
AbstractDatabaseDistanceQuery(Relation<? extends O> relation) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
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.

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

distance, 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

getDistanceFunction

Constructor Detail

AbstractDatabaseDistanceQuery

public AbstractDatabaseDistanceQuery(Relation<? extends O> relation)

Constructor.

Parameters:

relation - Relation to use.

Method Detail

distance

public double distance(O o1,
              DBIDRef id2)

Description copied from class: AbstractDistanceQuery

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

Specified by:

distance in interface DistanceQuery<O>

Specified by:

distance in class AbstractDistanceQuery<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 class: AbstractDistanceQuery

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

Specified by:

distance in interface DistanceQuery<O>

Specified by:

distance in class AbstractDistanceQuery<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 class: AbstractDistanceQuery

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

Specified by:

distance in interface DistanceQuery<O>

Specified by:

distance in class AbstractDistanceQuery<O>

Parameters:

o1 - first object

o2 - second object

Returns:

the distance between the two objects specified by their object ids