org.isoron.uhabits.models

Class ModelObservable

java.lang.Object

org.isoron.uhabits.models.ModelObservable

public class ModelObservable
extends java.lang.Object

A ModelObservable allows objects to subscribe themselves to it and receive notifications whenever the model is changed.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ModelObservable.Listener Interface implemented by objects that want to be notified when the model changes.

Constructor Summary

Constructors

Constructor and Description
ModelObservable() Creates a new ModelObservable with no listeners.

Method Summary

Modifier and Type	Method and Description
void	addListener(ModelObservable.Listener l) Adds the given listener to the observable.
void	notifyListeners() Notifies every listener that the model has changed.
void	removeListener(ModelObservable.Listener l) Removes the given listener.

Methods inherited from class java.lang.Object

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

Constructor Detail

ModelObservable

public ModelObservable()

Creates a new ModelObservable with no listeners.

Method Detail

addListener

public void addListener(ModelObservable.Listener l)

Adds the given listener to the observable.

Parameters:

l - the listener to be added.

notifyListeners

public void notifyListeners()

Notifies every listener that the model has changed.

Only models should call this method.

removeListener

public void removeListener(ModelObservable.Listener l)

Removes the given listener.

The listener will no longer be notified when the model changes. If the given listener is not subscrined to this observable, does nothing.

Parameters:

l - the listener to be removed