org.jquantlib.util

Class WeakReferenceObservable

java.lang.Object

org.jquantlib.util.DefaultObservable

org.jquantlib.util.WeakReferenceObservable

All Implemented Interfaces:

Observable

public class WeakReferenceObservable
extends DefaultObservable

Implementation of Observable that holds references to Observers as WeakReferences.

See Also:

Martin Fischer: Observer and Observable interfaces, Improved Observer/Observable, Observable, Observer, DefaultObservable

Constructor Summary

Constructors

Constructor and Description
WeakReferenceObservable(Observable observable)

Method Summary

Modifier and Type	Method and Description
void	addObserver(Observer referent) Attaches a observer to the Observable.
void	deleteObserver(Observer observer) This method deletes the Observer passed as argument but also discards those Observers which where reclaimed by gc

Methods inherited from class org.jquantlib.util.DefaultObservable

countObservers, deleteObservers, getObservers, notifyObservers, notifyObservers

Methods inherited from class java.lang.Object

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

Constructor Detail

WeakReferenceObservable

public WeakReferenceObservable(Observable observable)

Method Detail

addObserver

public void addObserver(Observer referent)

Description copied from interface: Observable

Attaches a observer to the Observable. After attachment the observer gets informed about changes in the Observable.

Specified by:

addObserver in interface Observable

Overrides:

addObserver in class DefaultObservable

Parameters:

referent - The observer to attach to the observable

deleteObserver

public void deleteObserver(Observer observer)

This method deletes the Observer passed as argument but also discards those Observers which where reclaimed by gc

Specified by:

deleteObserver in interface Observable

Overrides:

deleteObserver in class DefaultObservable

Parameters:

observer - The observer to detach from the observable