beginClassesNotificationForIF(theClass: Class; includeSubclasses: Boolean; transients: Boolean; eventType: Integer; responseType: Integer; eventTag: Integer; theInterface: JadeInterface);
The beginClassesNotificationForIF method of the Object class is a variation of the beginClassesNotification method.
The beginClassesNotificationForIF method allows notification events to be sent to methods mapped to the userNotification and sysNotification methods of the theInterface parameter when a nominated event occurs on instances of a class and optionally its subclasses, rather than to those of the subscriber.
The subscriber must be an instance of a
The parameters specified in the method signatures must match the standard userNotification or sysNotification method, as follows.
sysNotification(eventType: Integer; theObject: Object; eventTag: Integer); userNotification(eventType: Integer; theObject: Object; eventTag: Integer; userInfo: Any);
If the method signature does not match the standard userNotification or sysNotification method, an exception is raised when the beginClassesNotificationForIF method is executed.
The subscription to a notification registered by the beginClassesNotificationForIF method is terminated by the endClassesNotificationForIF method. You can also use the endNotificationForSubscriber method to terminate all notifications for a specific subscriber.
The beginClassesNotificationForIF method parameters are summarized in the following table.
Parameter | Specifies … |
---|---|
theClass | The class for which the notification is to be invoked |
includeSubclasses | Whether subclasses are included in or excluded from the notification registration |
transients | If the user notification is invoked for events occurring in transient instances |
eventType | The type of event for which the notification is requested |
responseType | The frequency with which an event notification is sent |
eventTag | An integer value that is required for each notification |
theInterface | The interface implemented by the specified class and optionally its subclasses |
With the exception of the theInterface parameter, described in the following subsection, for details about the other parameters, see the appropriate subsections of the beginClassesNotification method.