Package hec.lang

Class Observable

java.lang.Object

java.util.Observable

hec.lang.Observable

public class Observable
extends Observable

Class to allow use of java.util.Observable by composition instead of extension. Protected methods in superclass are public.

Constructor Summary

Constructors

Constructor	Description
Observable()

Method Summary

Modifier and Type	Method	Description
void	addObserver(Observer o)
void	clearChanged()
int	countObservers()
void	deleteObserver(Observer o)
void	deleteObservers()
boolean	hasChanged()
void	notifyObservers()
void	notifyObservers(Object arg)
void	setChanged()

Methods inherited from class java.lang.Object

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

Constructor Details

Observable

public Observable()

Method Details

addObserver

public void addObserver(Observer o)

Overrides:

addObserver in class Observable

clearChanged

public void clearChanged()

Overrides:

clearChanged in class Observable

countObservers

public int countObservers()

Overrides:

countObservers in class Observable

deleteObserver

public void deleteObserver(Observer o)

Overrides:

deleteObserver in class Observable

deleteObservers

public void deleteObservers()

Overrides:

deleteObservers in class Observable

hasChanged

public boolean hasChanged()

Overrides:

hasChanged in class Observable

notifyObservers

public void notifyObservers()

Overrides:

notifyObservers in class Observable

notifyObservers

public void notifyObservers(Object arg)

Overrides:

notifyObservers in class Observable

setChanged

public void setChanged()

Overrides:

setChanged in class Observable