UtlObserver Class Reference

#include <UtlObservable.h>

Public Member Functions
virtual	~UtlObserver ()
virtual void	onNotify (UtlObservable *subject, int code, void *pUserData)=0

Detailed Description

Generic interface for any object which is an observer of an observable.

Constructor & Destructor Documentation

virtual ~UtlObserver ( )

inlinevirtual

Member Function Documentation

virtual void onNotify ( UtlObservable *  subject, int  code, void *  pUserData  )

pure virtual

Notification method which the observer must implement. The observable's (also, subject) responsibility is to notify the observers of state changes. The observable will notify the observers by invoking this onNotify method.

Parameters

subject	The observable which invoked this method.
code	An integer notification value. For example, it can be used to indicate the observable's state.
pUserData	A reference to any object that the observable may pass to the observer.