de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.deliclu
Class DeLiCluNode

java.lang.Object
  de.lmu.ifi.dbs.elki.persistent.AbstractPage<N>
      de.lmu.ifi.dbs.elki.index.tree.AbstractNode<N,E>
          de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.AbstractRStarTreeNode<DeLiCluNode,DeLiCluEntry>
              de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.deliclu.DeLiCluNode

All Implemented Interfaces:

Node<DeLiCluNode,DeLiCluEntry>, SpatialComparable, SpatialNode<DeLiCluNode,DeLiCluEntry>, SpatialObject, Page<DeLiCluNode>, Externalizable, Serializable

public class DeLiCluNode
extends AbstractRStarTreeNode<DeLiCluNode,DeLiCluEntry>

Represents a node in a DeLiClu-Tree.

Author:

Elke Achtert

See Also:

Serialized Form

Field Summary

private static long

serialVersionUID

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

eclass, entries, isLeaf, numEntries

Constructor Summary

DeLiCluNode()
Empty constructor for Externalizable interface.

DeLiCluNode(PageFile<DeLiCluNode> file, int capacity, boolean isLeaf)
Creates a new DeLiCluNode with the specified parameters.

Method Summary

void	adjustEntry(DeLiCluEntry entry) Adjusts the parameters of the entry representing this node.
protected DeLiCluNode	createNewDirectoryNode(int capacity) Creates a new directory node with the specified capacity.
protected DeLiCluNode	createNewLeafNode(int capacity) Creates a new leaf node with the specified capacity.
boolean	hasHandled() Returns true, if the children of this node (or their child nodes) contain handled data objects.
boolean	hasUnhandled() Returns true, if the children of this node (or their child nodes) contain unhandled data objects.
protected void	integrityCheckParameters(DeLiCluNode parent, int index) Tests, if the parameters of the entry representing this node, are correctly set.

Methods inherited from class de.lmu.ifi.dbs.elki.index.tree.spatial.rstarvariants.AbstractRStarTreeNode

getDimensionality, getMax, getMin, initReInsert, integrityCheck, mbr, readExternal, splitEntries, writeExternal

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

addDirectoryEntry, addLeafEntry, children, deleteAllEntries, deleteEntry, equals, getCapacity, getEntries, getEntry, getNumEntries, increaseEntries, isLeaf, toString

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

getFile, getID, hashCode, isDirty, setDirty, setFile, setID

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.index.tree.Node

addDirectoryEntry, addLeafEntry, children, getEntry, getNumEntries, isLeaf

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

getID, isDirty, setDirty, setFile, setID

Methods inherited from interface de.lmu.ifi.dbs.elki.index.tree.spatial.SpatialObject

getID

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

Constructor Detail

DeLiCluNode

public DeLiCluNode()

Empty constructor for Externalizable interface.

DeLiCluNode

public DeLiCluNode(PageFile<DeLiCluNode> file,
                   int capacity,
                   boolean isLeaf)

Creates a new DeLiCluNode with the specified parameters.

Parameters:

file - the file storing the DeLiClu-Tree

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

hasHandled

public boolean hasHandled()

Returns true, if the children of this node (or their child nodes) contain handled data objects.

Returns:

true, if the children of this node (or their child nodes) contain handled data objects

hasUnhandled

public boolean hasUnhandled()

Returns true, if the children of this node (or their child nodes) contain unhandled data objects.

Returns:

true, if the children of this node (or their child nodes) contain unhandled data objects

createNewLeafNode

protected DeLiCluNode createNewLeafNode(int capacity)

Creates a new leaf node with the specified capacity.

Specified by:

createNewLeafNode in class AbstractRStarTreeNode<DeLiCluNode,DeLiCluEntry>

Parameters:

capacity - the capacity of the new node

Returns:

a new leaf node

createNewDirectoryNode

protected DeLiCluNode createNewDirectoryNode(int capacity)

Creates a new directory node with the specified capacity.

Specified by:

createNewDirectoryNode in class AbstractRStarTreeNode<DeLiCluNode,DeLiCluEntry>

Parameters:

capacity - the capacity of the new node

Returns:

a new directory node

adjustEntry

public void adjustEntry(DeLiCluEntry entry)

Description copied from class: AbstractRStarTreeNode

Adjusts the parameters of the entry representing this node.

Overrides:

adjustEntry in class AbstractRStarTreeNode<DeLiCluNode,DeLiCluEntry>

Parameters:

entry - the entry representing this node

integrityCheckParameters

protected void integrityCheckParameters(DeLiCluNode parent,
                                        int index)

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

Overrides:

integrityCheckParameters in class AbstractRStarTreeNode<DeLiCluNode,DeLiCluEntry>

Parameters:

parent - the parent holding the entry representing this node

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