de.lmu.ifi.dbs.elki.distance
Class AbstractDistance<D extends AbstractDistance<D>>

java.lang.Object
  de.lmu.ifi.dbs.elki.distance.AbstractDistance<D>

Type Parameters:

D - the (final) type of Distance used

All Implemented Interfaces:

Distance<D>, Externalizable, Serializable, Comparable<D>

Direct Known Subclasses:

CorrelationDistance, NumberDistance, SubspaceDistance

public abstract class AbstractDistance<D extends AbstractDistance<D>>
extends Object
implements Distance<D>

An abstract distance implements equals conveniently for any extending class. At the same time any extending class is to implement hashCode properly. See DistanceUtil for related utility functions such as min, max.

Author:

Arthur Zimek

See Also:

DistanceUtil, Serialized Form

Constructor Summary

AbstractDistance()

Method Summary

boolean	equals(Object o) Returns true if this == o has the value true or o is not null and o is of the same class as this instance and this.compareTo(o) is 0, false otherwise.
abstract int	hashCode() Any extending class should implement a proper hashCode method.

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.Distance

description, externalizableSize, minus, plus, toString

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface java.io.Externalizable

readExternal, writeExternal

Constructor Detail

AbstractDistance

public AbstractDistance()

Method Detail

hashCode

public abstract int hashCode()

Any extending class should implement a proper hashCode method.

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Returns true if this == o has the value true or o is not null and o is of the same class as this instance and this.compareTo(o) is 0, false otherwise.

Overrides:

equals in class Object