GNAT.Factory (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

java.lang.Object
- elki.index.tree.metrical.vptree.GNAT.Factory<O>

Type Parameters:: O - Object type

All Implemented Interfaces:: IndexFactory<O>

Enclosing class:: GNAT<O>

@Alias({"MVPTree","mvp"})
public static class GNAT.Factory<O extends NumberVector>
extends java.lang.Object
implements IndexFactory<O>

Index Factory

Author:: Robert Gehde

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class GNAT.Factory.Par<O extends NumberVector>
Parameterization class.

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) Distance<? super O>`	`distance`	Distance Function
`(package private) int`	`numbervps`	Sample size
`(package private) RandomFactory`	`random`	Random factory

Constructor Summary

Constructors
Constructor Description

Factory(Distance<? super O> distFunc, RandomFactory random, int numberVantagePoints)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`TypeInformation`	`getInputTypeRestriction()`	Get the input type restriction used for negotiating the data query.
`GNAT<O>`	`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
  - distance
```
Distance<? super O extends NumberVector> distance
```
    Distance Function
  - random
```
RandomFactory random
```
    Random factory
  - numbervps
```
int numbervps
```
    Sample size
- Constructor Detail
  - Factory
```
public Factory(Distance<? super O> distFunc,
               RandomFactory random,
               int numberVantagePoints)
```
    Constructor.
    
    Parameters:
    
    distFunc - Distance function
    
    random - Random generator
    
    numberVantagePoints - Number of vantage points to use
- Method Detail
  - instantiate
```
public GNAT<O> 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 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<O extends NumberVector>
    
    Returns:
    
    Type restriction