de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mktab
Class MkTabTreeNode<O,D extends Distance<D>>

java.lang.Object
  de.lmu.ifi.dbs.elki.persistent.AbstractPage
      de.lmu.ifi.dbs.elki.index.tree.AbstractNode<E>
          de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.AbstractMTreeNode<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>>
              de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mktab.MkTabTreeNode<O,D>

Type Parameters:

O - object type

D - distance type

All Implemented Interfaces:

Node<MkTabEntry<D>>, Page, Externalizable, Serializable

 class MkTabTreeNode<O,D extends Distance<D>>
extends AbstractMTreeNode<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>>

Represents a node in a MkMax-Tree.

Field Summary

private static long

serialVersionUID

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

entries, isLeaf, numEntries

Constructor Summary

MkTabTreeNode()
Empty constructor for Externalizable interface.

MkTabTreeNode(int capacity, boolean isLeaf)
Creates a MkTabTreeNode object.

Method Summary

void	adjustEntry(MkTabEntry<D> entry, DBID routingObjectID, D parentDistance, AbstractMTree<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>> mTree) Adjusts the parameters of the entry representing this node (e.g. after insertion of new objects).
protected void	integrityCheckParameters(MkTabEntry<D> parentEntry, MkTabTreeNode<O,D> parent, int index, AbstractMTree<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>> mTree) Tests, if the parameters of the entry representing this node, are correctly set.
protected List<D>	kNNDistances(DistanceQuery<O,D> distanceFunction) Determines and returns the knn distance of this node as the maximum knn distance of all entries.

Methods inherited from class de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.AbstractMTreeNode

coveringRadius, integrityCheck

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

addDirectoryEntry, addLeafEntry, children, deleteAllEntries, deleteEntry, equals, getCapacity, getEntries, getEntry, getNumEntries, isLeaf, readExternal, splitTo, splitTo, toString, writeExternal

Methods inherited from class de.lmu.ifi.dbs.elki.persistent.AbstractPage

getPageID, hashCode, isDirty, setDirty, setPageID

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.lmu.ifi.dbs.elki.persistent.Page

getPageID, isDirty, setDirty, setPageID

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

MkTabTreeNode

public MkTabTreeNode()

Empty constructor for Externalizable interface.

MkTabTreeNode

public MkTabTreeNode(int capacity,
                     boolean isLeaf)

Creates a MkTabTreeNode object.

Parameters:

capacity - the capacity (maximum number of entries plus 1 for overflow) of this node

isLeaf - indicates whether this node is a leaf node

Method Detail

kNNDistances

protected List<D> kNNDistances(DistanceQuery<O,D> distanceFunction)

Determines and returns the knn distance of this node as the maximum knn distance of all entries.

Parameters:

distanceFunction - the distance function

Returns:

the knn distance of this node

adjustEntry

public void adjustEntry(MkTabEntry<D> entry,
                        DBID routingObjectID,
                        D parentDistance,
                        AbstractMTree<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>> mTree)

Description copied from class: AbstractMTreeNode

Adjusts the parameters of the entry representing this node (e.g. after insertion of new objects). Subclasses may need to overwrite this method.

Overrides:

adjustEntry in class AbstractMTreeNode<O,D extends Distance<D>,MkTabTreeNode<O,D extends Distance<D>>,MkTabEntry<D extends Distance<D>>>

Parameters:

entry - the entry representing this node

routingObjectID - the id of the (new) routing object of this node

parentDistance - the distance from the routing object of this node to the routing object of the parent node

mTree - the M-Tree object holding this node

integrityCheckParameters

protected void integrityCheckParameters(MkTabEntry<D> parentEntry,
                                        MkTabTreeNode<O,D> parent,
                                        int index,
                                        AbstractMTree<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>> mTree)

Tests, if the parameters of the entry representing this node, are correctly set. Subclasses may need to overwrite this method.

Overrides:

integrityCheckParameters in class AbstractMTreeNode<O,D extends Distance<D>,MkTabTreeNode<O,D extends Distance<D>>,MkTabEntry<D extends Distance<D>>>

Parameters:

parent - the parent holding the entry representing this node

index - the index of the entry in the parents child array

mTree - the underlying M-Tree

parentEntry - the entry representing the parent