de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mktab
Class MkTabTreeNode<O extends DatabaseObject,D extends Distance<D>>
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.metrical.mtreevariants.AbstractMTreeNode<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>>
de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mktab.MkTabTreeNode<O,D>
- All Implemented Interfaces:
- MetricalNode<MkTabTreeNode<O,D>,MkTabEntry<D>>, Node<MkTabTreeNode<O,D>,MkTabEntry<D>>, Page<MkTabTreeNode<O,D>>, Externalizable, Serializable
class MkTabTreeNode<O extends DatabaseObject,D extends Distance<D>>
- extends AbstractMTreeNode<O,D,MkTabTreeNode<O,D>,MkTabEntry<D>>
Represents a node in a MkMax-Tree.
- Author:
- Elke Achtert
Method Summary |
void |
adjustEntry(MkTabEntry<D> entry,
Integer 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 MkTabTreeNode<O,D> |
createNewDirectoryNode(int capacity)
Creates a new directory node with the specified capacity. |
protected MkTabTreeNode<O,D> |
createNewLeafNode(int capacity)
Creates a new leaf node with the specified capacity. |
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(DistanceFunction<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.AbstractNode |
addDirectoryEntry, addLeafEntry, children, deleteAllEntries, deleteEntry, equals, getCapacity, getEntries, getEntry, getNumEntries, increaseEntries, isLeaf, readExternal, toString, writeExternal |
serialVersionUID
private static final long serialVersionUID
- See Also:
- Constant Field Values
MkTabTreeNode
public MkTabTreeNode()
- Empty constructor for Externalizable interface.
MkTabTreeNode
public MkTabTreeNode(PageFile<MkTabTreeNode<O,D>> file,
int capacity,
boolean isLeaf)
- Creates a MkTabTreeNode object.
- Parameters:
file
- the file storing the MkTab-Treecapacity
- the capacity (maximum number of entries plus 1 for overflow)
of this nodeisLeaf
- indicates whether this node is a leaf node
createNewLeafNode
protected MkTabTreeNode<O,D> createNewLeafNode(int capacity)
- Creates a new leaf node with the specified capacity.
- Specified by:
createNewLeafNode
in class AbstractNode<MkTabTreeNode<O extends DatabaseObject,D extends Distance<D>>,MkTabEntry<D extends Distance<D>>>
- Parameters:
capacity
- the capacity of the new node
- Returns:
- a new leaf node
createNewDirectoryNode
protected MkTabTreeNode<O,D> createNewDirectoryNode(int capacity)
- Creates a new directory node with the specified capacity.
- Specified by:
createNewDirectoryNode
in class AbstractNode<MkTabTreeNode<O extends DatabaseObject,D extends Distance<D>>,MkTabEntry<D extends Distance<D>>>
- Parameters:
capacity
- the capacity of the new node
- Returns:
- a new directory node
kNNDistances
protected List<D> kNNDistances(DistanceFunction<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,
Integer 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 extends DatabaseObject,D extends Distance<D>,MkTabTreeNode<O extends DatabaseObject,D extends Distance<D>>,MkTabEntry<D extends Distance<D>>>
- Parameters:
entry
- the entry representing this noderoutingObjectID
- the id of the (new) routing object of this nodeparentDistance
- the distance from the routing object of this node
to the routing object of the parent nodemTree
- 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 extends DatabaseObject,D extends Distance<D>,MkTabTreeNode<O extends DatabaseObject,D extends Distance<D>>,MkTabEntry<D extends Distance<D>>>
- Parameters:
parent
- the parent holding the entry representing this nodeindex
- the index of the entry in the parents child arraymTree
- the underlying M-TreeparentEntry
- the entry representing the parent