de.lmu.ifi.dbs.elki.index.projected

Class ProjectedIndex.Factory<O,I>

java.lang.Object

de.lmu.ifi.dbs.elki.index.projected.ProjectedIndex.Factory<O,I>

Type Parameters:

O - Outer object type.

I - Inner object type.

All Implemented Interfaces:

IndexFactory<O,ProjectedIndex<O,I>>

Direct Known Subclasses:

LatLngAsECEFIndex.Factory, LngLatAsECEFIndex.Factory, PINN

Enclosing class:

ProjectedIndex<O,I>

public static class ProjectedIndex.Factory<O,I>
extends Object
implements IndexFactory<O,ProjectedIndex<O,I>>

Index factory.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ProjectedIndex.Factory.Parameterizer<O,I> Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) IndexFactory<I,?>	inner Inner index factory.
(package private) double	kmulti Multiplier for k.
(package private) boolean	materialize Whether to use a materialized view, or a virtual view.
(package private) boolean	norefine Disable refinement of distances.
(package private) Projection<O,I>	proj Projection to use.

Constructor Summary

Constructors

Constructor and Description
Factory(Projection<O,I> proj, IndexFactory<I,?> inner, boolean materialize, boolean norefine, double kmulti) Constructor.

Method Summary

Modifier and Type	Method and Description
TypeInformation	getInputTypeRestriction() Get the input type restriction used for negotiating the data query.
ProjectedIndex<O,I>	instantiate(Relation<O> relation) Sets the database in the distance function of this index (if existing).

Methods inherited from class java.lang.Object

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

Field Detail

proj

Projection<O,I> proj

Projection to use.

inner

IndexFactory<I,?> inner

Inner index factory.

materialize

boolean materialize

Whether to use a materialized view, or a virtual view.

norefine

boolean norefine

Disable refinement of distances.

kmulti

double kmulti

Multiplier for k.

Constructor Detail

Factory

public Factory(Projection<O,I> proj,
               IndexFactory<I,?> inner,
               boolean materialize,
               boolean norefine,
               double kmulti)

Constructor.

Parameters:

proj - Projection

inner - Inner index

materialize - Flag for materializing

norefine - Disable refinement of distances

kmulti - Multiplicator for k.

Method Detail

instantiate

public ProjectedIndex<O,I> instantiate(Relation<O> relation)

Description copied from interface: IndexFactory

Sets the database in the distance function of this index (if existing).

Specified by:

instantiate in interface IndexFactory<O,ProjectedIndex<O,I>>

Parameters:

relation - the relation to index

getInputTypeRestriction

public TypeInformation getInputTypeRestriction()

Description copied from interface: IndexFactory

Get the input type restriction used for negotiating the data query.

Specified by:

getInputTypeRestriction in interface IndexFactory<O,ProjectedIndex<O,I>>

Returns:

Type restriction