com.sharkysoft.fig.interactive

Class FigListenerRegistry<ListenerType>

java.lang.Object

com.sharkysoft.fig.interactive.FigListenerRegistry<ListenerType>

public class FigListenerRegistry<ListenerType>
extends Object

Maps shapes to listeners.

Details: This class maps Doodles to listeners. This mapping is many to many.

Author:

Sharky

Constructor Summary

Constructors

Constructor and Description
FigListenerRegistry() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addListener(Doodle iDoodle, ListenerType iListener) Attaches listener to shape.
Iterator<ListenerType>	getListeners(Doodle iShape) Returns listeners for shape.
void	removeListener(Doodle iDoodle, ListenerType iListener) Detaches listener from shape.
void	removeListeners(Doodle iShape) Detaches all listeners from shape.

Methods inherited from class java.lang.Object

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

Constructor Detail

FigListenerRegistry

public FigListenerRegistry()

Default constructor.

Details: This constructor initializes an empty registry.

Method Detail

addListener

public void addListener(Doodle iDoodle,
               ListenerType iListener)

Attaches listener to shape.

Details: This method binds the given Doodle to the given listener.

Parameters:

iDoodle - the shape

iListener - the listener

See Also:

#removeListener(Doodle, FigMouseListener)

removeListener

public void removeListener(Doodle iDoodle,
                  ListenerType iListener)

Detaches listener from shape.

Details: This method disassociates the given listener from the given shape. If the given shape is not associated with the given listener, no action is taken.

Parameters:

iDoodle - the shape

iListener - the listener

See Also:

#addListener(Doodle, FigMouseListener)

removeListeners

public void removeListeners(Doodle iShape)

Detaches all listeners from shape.

Details: This method removes all of the listeners associated with the given shape. If the given shape is not associated with and listeners, no action is taken.

Parameters:

iShape -

getListeners

public Iterator<ListenerType> getListeners(Doodle iShape)

Returns listeners for shape.

Details: This method returns the listeners bound to the given shape. If the shape has no listeners, null is returned.

Parameters:

iShape - the shape

Returns:

the listeners