org.puremvc.java.interfaces
Interface INotification

All Known Implementing Classes:

Notification

public interface INotification

The interface definition for a PureMVC Notification.

PureMVC does not rely upon underlying event models such as the one provided with Flash, and ActionScript 3 does not have an inherent event model.

The Observer Pattern as implemented within PureMVC exists to support event-driven communication between the application and the actors of the MVC triad.

Notifications are not meant to be a replacement for Events in Flex/Flash/Apollo. Generally, IMediator implementors place event listeners on their view components, which they then handle in the usual way. This may lead to the broadcast of Notifications to trigger ICommands or to communicate with other IMediators. IProxy and ICommand instances communicate with each other and IMediators by broadcasting INotifications.

A key difference between Flash Events and PureMVC Notifications is that Events follow the 'Chain of Responsibility' pattern, 'bubbling' up the display hierarchy until some parent component handles the Event, while PureMVC Notifications follow a 'Publish/Subscribe' pattern. PureMVC classes need not be related to each other in a parent/child relationship in order to communicate with one another using Notifications.

See Also:

IView, IObserver

Method Summary

java.lang.Object	getBody() Get the body of the INotification instance
java.lang.String	getName() Get the name of the INotification instance.
java.lang.String	getType() Get the type of the INotification instance
void	setBody(java.lang.Object body) Set the body of the INotification instance
void	setType(java.lang.String type) Set the type of the INotification instance
java.lang.String	toString() Get the string representation of the INotification instance

Method Detail

getName

java.lang.String getName()

Get the name of the INotification instance. No setter, should be set by constructor only

Returns:

the name

setBody

void setBody(java.lang.Object body)

Set the body of the INotification instance

Parameters:

body -

getBody

java.lang.Object getBody()

Get the body of the INotification instance

Returns:

the body

setType

void setType(java.lang.String type)

Set the type of the INotification instance

Parameters:

type - the type

getType

java.lang.String getType()

Get the type of the INotification instance

Returns:

the type

toString

java.lang.String toString()

Get the string representation of the INotification instance

Overrides:

toString in class java.lang.Object

Returns:

the string representation of the INotification instance