de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants
Class AbstractMTreeFactory<O,D extends Distance<D>,N extends AbstractMTreeNode<O,D,N,E>,E extends MTreeEntry<D>,I extends AbstractMTree<O,D,N,E> & Index>

java.lang.Object
  de.lmu.ifi.dbs.elki.index.tree.TreeIndexFactory<O,I>
      de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.AbstractMTreeFactory<O,D,N,E,I>

Type Parameters:

O - Object type

D - Distance type

N - Node type

E - Entry type

I - Index type

All Implemented Interfaces:

IndexFactory<O,I>, InspectionUtilFrequentlyScanned, Parameterizable

Direct Known Subclasses:

AbstractMkTreeUnifiedFactory, MkAppTreeFactory, MkCopTreeFactory, MTreeFactory

public abstract class AbstractMTreeFactory<O,D extends Distance<D>,N extends AbstractMTreeNode<O,D,N,E>,E extends MTreeEntry<D>,I extends AbstractMTree<O,D,N,E> & Index>
extends TreeIndexFactory<O,I>

Abstract factory for various MTrees

Nested Class Summary

static class

AbstractMTreeFactory.Parameterizer<O,D extends Distance<D>> Parameterization class.

Field Summary

static OptionID	DISTANCE_FUNCTION_ID Parameter to specify the distance function to determine the distance between database objects, must extend DistanceFunction.
protected DistanceFunction<O,D>	distanceFunction Holds the instance of the distance function specified by DISTANCE_FUNCTION_ID.

Fields inherited from class de.lmu.ifi.dbs.elki.index.tree.TreeIndexFactory

CACHE_SIZE_ID, cacheSize, FILE_ID, fileName, PAGE_SIZE_ID, pageSize

Constructor Summary

AbstractMTreeFactory(String fileName, int pageSize, long cacheSize, DistanceFunction<O,D> distanceFunction)
Constructor.

Method Summary

TypeInformation

getInputTypeRestriction() Get the input type restriction used for negotiating the data query.

Methods inherited from class de.lmu.ifi.dbs.elki.index.tree.TreeIndexFactory

instantiate, makePageFile

Methods inherited from class java.lang.Object

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

Field Detail

DISTANCE_FUNCTION_ID

public static final OptionID DISTANCE_FUNCTION_ID

Parameter to specify the distance function to determine the distance between database objects, must extend DistanceFunction.

Key: -mtree.distancefunction

Default value: EuclideanDistanceFunction

distanceFunction

protected DistanceFunction<O,D extends Distance<D>> distanceFunction

Holds the instance of the distance function specified by DISTANCE_FUNCTION_ID.

Constructor Detail

AbstractMTreeFactory

public AbstractMTreeFactory(String fileName,
                            int pageSize,
                            long cacheSize,
                            DistanceFunction<O,D> distanceFunction)

Constructor.

Parameters:

fileName -

pageSize -

cacheSize -

distanceFunction -

Method Detail

getInputTypeRestriction

public TypeInformation getInputTypeRestriction()

Description copied from interface: IndexFactory

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

Returns:

Type restriction