de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mkmax

Class MkMaxLeafEntry

java.lang.Object

de.lmu.ifi.dbs.elki.index.tree.AbstractLeafEntry

de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.MTreeLeafEntry

de.lmu.ifi.dbs.elki.index.tree.metrical.mtreevariants.mktrees.mkmax.MkMaxLeafEntry

All Implemented Interfaces:

Entry, LeafEntry, MkMaxEntry, MTreeEntry, Externalizable, Serializable

 class MkMaxLeafEntry
extends MTreeLeafEntry
implements MkMaxEntry

Represents an entry in a leaf node of an MkMaxTree. Additionally to an MTreeLeafEntry an MkMaxLeafEntry holds the k-nearest neighbor distance of the underlying data object.

Since:

0.2

Author:

Elke Achtert

Field Summary

Fields

Modifier and Type	Field and Description
private double	knnDistance The k-nearest neighbor distance of the underlying data object.
private static long	serialVersionUID Serial version number

Constructor Summary

Constructors

Constructor and Description
MkMaxLeafEntry() Empty constructor for serialization purposes.
MkMaxLeafEntry(DBID objectID, double parentDistance, double knnDistance) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(Object o) Indicates whether some other object is "equal to" this one.
double	getKnnDistance() Returns the knn distance of the entry.
void	readExternal(ObjectInput in) Calls the super method and reads the knn distance of this entry from the specified input stream.
void	setKnnDistance(double knnDistance) Sets the knn distance of the entry.
void	writeExternal(ObjectOutput out) Calls the super method and writes the knn distance of this entry to the specified stream.

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

getCoveringRadius, getParentDistance, getRoutingObjectID, setCoveringRadius, setParentDistance, setRoutingObjectID

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

getDBID, hashCode, isLeafEntry, toString

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.metrical.mtreevariants.MTreeEntry

getCoveringRadius, getParentDistance, getRoutingObjectID, setCoveringRadius, setParentDistance, setRoutingObjectID

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

isLeafEntry

Field Detail

serialVersionUID

private static final long serialVersionUID

Serial version number

See Also:

Constant Field Values

knnDistance

private double knnDistance

The k-nearest neighbor distance of the underlying data object.

Constructor Detail

MkMaxLeafEntry

public MkMaxLeafEntry()

Empty constructor for serialization purposes.

MkMaxLeafEntry

public MkMaxLeafEntry(DBID objectID,
              double parentDistance,
              double knnDistance)

Constructor.

Parameters:

objectID - the id of the underlying data object

parentDistance - the distance from the underlying data object to its parent's routing object

knnDistance - the knn distance of the underlying data object

Method Detail

getKnnDistance

public double getKnnDistance()

Description copied from interface: MkMaxEntry

Returns the knn distance of the entry.

Specified by:

getKnnDistance in interface MkMaxEntry

Returns:

the knn distance of the entry

setKnnDistance

public void setKnnDistance(double knnDistance)

Description copied from interface: MkMaxEntry

Sets the knn distance of the entry.

Specified by:

setKnnDistance in interface MkMaxEntry

Parameters:

knnDistance - the knn distance to be set

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Calls the super method and writes the knn distance of this entry to the specified stream.

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class MTreeLeafEntry

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Calls the super method and reads the knn distance of this entry from the specified input stream.

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class MTreeLeafEntry

Throws:

ClassNotFoundException - If the class for an object being restored cannot be found.

IOException

equals

public boolean equals(Object o)

Indicates whether some other object is "equal to" this one.

Overrides:

equals in class MTreeLeafEntry

Parameters:

o - the object to be tested

Returns:

true, if the super method returns true and o is an MkMaxLeafEntry and has the same knnDistance as this entry.