Namespace: PureMVC.Interfaces.IObserver

Interface IObserver

All Known Implementing Classes:

TObserver

public interface IObserver

Persistent

False

see

remarks

In PureMVC, IObserver implementors assume these responsibilities:Encapsulate the notification (callback) method of the interested objectEncapsulate the notification context (this) of the interested objectProvide methods for setting the interested object' notification method and contextProvide a method for notifying the interested objectPureMVC does not rely upon underlying event modelsThe Observer Pattern as implemented within PureMVC exists to support event driven communication between the application and the actors of the MVC triadAn Observer is an object that encapsulates information about an interested object with a notification method that should be called when an INotification is broadcast. The Observer then acts as a proxy for notifying the interested objectObservers can receive Notifications by having their notifyObserver method invoked, passing in an object implementing the INotification interface, such as a subclass of Notification

summary

The interface definition for a PureMVC Observer

Property Summary
public  TObject	NotifyContext
public  string	NotifyMethod

 

Method Summary
public function Boolean	CompareNotifyContext(Obj: TObject) Compare the given object to the notificaiton context object
public Sub	NotifyObserver(Notification: PureMVC.Interfaces.INotification.INotification ) Notify the interested object
public Sub	SetNotifyContext(Value: TObject) The notification context (this) of the interested object
public Sub	SetNotifyMethod(Value: string) The notification (callback) method of the interested object

 

Property Detail

NotifyContext

public NotifyContext: TObject

Type

TObject

Access

write

public NotifyMethod: string

Type

string

Access

write

public function CompareNotifyContext(Obj: TObject): Boolean

Reintroduce

False

Returns

Boolean

summary

Compare the given object to the notificaiton context object

returns

Indicates if the notification context and the object are the same.

param

The object to compare

public procedure NotifyObserver(Notification: PureMVC.Interfaces.INotification.INotification )

Reintroduce

False

summary

Notify the interested object

param

The INotification to pass to the interested object's notification method

public procedure SetNotifyContext(Value: TObject)

Reintroduce

False

summary

The notification context (this) of the interested object

public procedure SetNotifyMethod(Value: string)

Reintroduce

False

summary

The notification (callback) method of the interested object

remarks

The notification method should take one parameter of type INotification