de.lmu.ifi.dbs.elki.index.vafile

Class VAFile.Factory<V extends NumberVector>

java.lang.Object

de.lmu.ifi.dbs.elki.index.vafile.VAFile.Factory<V>

Type Parameters:

V - Vector type

All Implemented Interfaces:

IndexFactory<V,VAFile<V>>

Enclosing class:

VAFile<V extends NumberVector>

public static class VAFile.Factory<V extends NumberVector>
extends Object
implements IndexFactory<V,VAFile<V>>

Index factory class.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	VAFile.Factory.Parameterizer Parameterization class.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	numpart Number of partitions.
(package private) int	pagesize Page size.
static OptionID	PARTITIONS_ID Number of partitions to use in each dimension.

Constructor Summary

Constructors

Constructor and Description
VAFile.Factory(int pagesize, int numpart) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
TypeInformation	getInputTypeRestriction() Get the input type restriction used for negotiating the data query.
VAFile<V>	instantiate(Relation<V> 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

PARTITIONS_ID

public static final OptionID PARTITIONS_ID

Number of partitions to use in each dimension.

 -vafile.partitions 8
 

pagesize

int pagesize

Page size.

numpart

int numpart

Number of partitions.

Constructor Detail

VAFile.Factory

public VAFile.Factory(int pagesize,
              int numpart)

Constructor.

Parameters:

pagesize - Page size

numpart - Number of partitions

Method Detail

instantiate

public VAFile<V> instantiate(Relation<V> relation)

Description copied from interface: IndexFactory

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

Specified by:

instantiate in interface IndexFactory<V extends NumberVector,VAFile<V extends NumberVector>>

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<V extends NumberVector,VAFile<V extends NumberVector>>

Returns:

Type restriction