Observer Class Reference

#import <Observer.h>

Inherits IObserver-p.

List of all members.

Public Member Functions
(id)	- initWithNotifyMethod:notifyContext:
(BOOL)	- compareNotifyContext: [implementation]
(void)	- notifyObserver: [implementation]
(void)	- setNotifyContext:
(void)	- setNotifyMethod:
Static Public Member Functions
(id)	+ withNotifyMethod:notifyContext:

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Detailed Description

A base IObserver implementation.

An Observer is an object that encapsulates information about an interested object with a method that should be called when a particular INotification is broadcast.

In PureMVC, the Observer class assumes these responsibilities:

• Encapsulate the notification (callback) method of the interested object.
• Encapsulate the notification context (this) of the interested object.
• Provide methods for setting the notification method and context.
• Provide a method for notifying the interested object.

See also:

View, Notification

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Member Function Documentation

- (BOOL) compareNotifyContext:

(id)

object

[implementation]

Compare an object to the notification context.

Parameters:

object

the object to compare

Returns:

boolean indicating if the object and the notification context are the same

Reimplemented from < IObserver >.

- (id) initWithNotifyMethod:		(SEL)	_notifyMethod
notifyContext:		(id)	_notifyContext

Constructor.

The notification method on the interested object should take one parameter of type INotification

Parameters:

	notifyMethod	the notification method of the interested object
	notifyContext	the notification context of the interested object

- (void) notifyObserver:

(id<INotification>)

notification

[implementation]

Notify the interested object.

Parameters:

notification

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

Reimplemented from < IObserver >.

- (void) setNotifyContext:

(id)

notifyContext

Set the notification context.

Parameters:

notifyContext

the notification context (self) of the interested object

- (void) setNotifyMethod:

(SEL)

notifyMethod

Set the notification method.

The notification method should take one parameter of type INotification

Parameters:

notifyMethod

the notification (callback) selector of the interested object

+ (id) withNotifyMethod:		(SEL)	notifyMethod
notifyContext:		(id)	notifyContext

Static Convienence Constructor.