de.lmu.ifi.dbs.elki.algorithm.clustering.optics

Class OPTICSHeapEntry

java.lang.Object

de.lmu.ifi.dbs.elki.algorithm.clustering.optics.OPTICSHeapEntry

All Implemented Interfaces:

Comparable<OPTICSHeapEntry>

public class OPTICSHeapEntry
extends Object
implements Comparable<OPTICSHeapEntry>

Entry in the priority heap.

Author:

Elke Achtert

Field Summary

Fields

Modifier and Type	Field and Description
(package private) DBID	objectID The id of the entry.
(package private) DBID	predecessorID The id of the entry's predecessor.
(package private) double	reachability The reachability of the entry.

Constructor Summary

Constructors

Constructor and Description
OPTICSHeapEntry(DBID objectID, DBID predecessorID, double reachability) Creates a new entry in a cluster order with the specified parameters.

Method Summary

Modifier and Type	Method and Description
int	compareTo(OPTICSHeapEntry o)
boolean	equals(Object o) Indicates whether some other object is "equal to" this one.
int	hashCode() Returns a hash code value for the object.
String	toString() Returns a string representation of the object.

Methods inherited from class java.lang.Object

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

Field Detail

objectID

DBID objectID

The id of the entry.

predecessorID

DBID predecessorID

The id of the entry's predecessor.

reachability

double reachability

The reachability of the entry.

Constructor Detail

OPTICSHeapEntry

public OPTICSHeapEntry(DBID objectID,
                       DBID predecessorID,
                       double reachability)

Creates a new entry in a cluster order with the specified parameters.

Parameters:

objectID - the id of the entry

predecessorID - the id of the entry's predecessor

reachability - the reachability of the entry

Method Detail

equals

public boolean equals(Object o)

Indicates whether some other object is "equal to" this one. NOTE: for the use in an UpdatableHeap, only the ID is compared!

Overrides:

equals in class Object

Parameters:

o - the reference object with which to compare.

Returns:

true if this object has the same attribute values as the o argument; false otherwise.

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class Object

Returns:

the object id if this entry

toString

public String toString()

Returns a string representation of the object.

Overrides:

toString in class Object

Returns:

a string representation of the object.

compareTo

public int compareTo(OPTICSHeapEntry o)

Specified by:

compareTo in interface Comparable<OPTICSHeapEntry>