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

Class PrimitiveSimilarityQuery<O>

java.lang.Object

de.lmu.ifi.dbs.elki.database.query.similarity.AbstractSimilarityQuery<O>

de.lmu.ifi.dbs.elki.database.query.similarity.PrimitiveSimilarityQuery<O>

Type Parameters:

O - Database object type.

All Implemented Interfaces:

DatabaseQuery, SimilarityQuery<O>

public class PrimitiveSimilarityQuery<O>
extends AbstractSimilarityQuery<O>

Run a database query in a database context.

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
protected PrimitiveSimilarityFunction<? super O>	similarityFunction The distance function we use.

Fields inherited from class de.lmu.ifi.dbs.elki.database.query.similarity.AbstractSimilarityQuery

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
PrimitiveSimilarityQuery(Relation<? extends O> relation, PrimitiveSimilarityFunction<? super O> similarityFunction) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
PrimitiveSimilarityFunction<? super O>	getSimilarityFunction() Get the inner similarity function.
double	similarity(DBIDRef id1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
double	similarity(DBIDRef id1, O o2) Returns the distance between the two objects specified by their object ids.
double	similarity(O o1, DBIDRef id2) Returns the distance between the two objects specified by their object ids.
double	similarity(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.similarity.AbstractSimilarityQuery

getRelation

Methods inherited from class java.lang.Object

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

Field Detail

similarityFunction

protected final PrimitiveSimilarityFunction<? super O> similarityFunction

The distance function we use.

Constructor Detail

PrimitiveSimilarityQuery

public PrimitiveSimilarityQuery(Relation<? extends O> relation,
                        PrimitiveSimilarityFunction<? super O> similarityFunction)

Constructor.

Parameters:

relation - Relation to use.

similarityFunction - Our similarity function

Method Detail

similarity

public double similarity(DBIDRef id1,
                DBIDRef id2)

Description copied from class: AbstractSimilarityQuery

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

Specified by:

similarity in interface SimilarityQuery<O>

Specified by:

similarity in class AbstractSimilarityQuery<O>

Parameters:

id1 - first object id

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

similarity

public double similarity(O o1,
                DBIDRef id2)

Description copied from class: AbstractSimilarityQuery

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

Specified by:

similarity in interface SimilarityQuery<O>

Specified by:

similarity in class AbstractSimilarityQuery<O>

Parameters:

o1 - first object

id2 - second object id

Returns:

the distance between the two objects specified by their object ids

similarity

public double similarity(DBIDRef id1,
                O o2)

Description copied from class: AbstractSimilarityQuery

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

Specified by:

similarity in interface SimilarityQuery<O>

Specified by:

similarity in class AbstractSimilarityQuery<O>

Parameters:

id1 - first object id

o2 - second object

Returns:

the distance between the two objects specified by their object ids

similarity

public double similarity(O o1,
                O o2)

Description copied from class: AbstractSimilarityQuery

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

Specified by:

similarity in interface SimilarityQuery<O>

Specified by:

similarity in class AbstractSimilarityQuery<O>

Parameters:

o1 - first object

o2 - second object

Returns:

the distance between the two objects specified by their object ids

getSimilarityFunction

public PrimitiveSimilarityFunction<? super O> getSimilarityFunction()

Description copied from interface: SimilarityQuery

Get the inner similarity function.

Returns:

Similarity function