Represents an observer to the Subject class. An observer implements this interface and then subscribes to the Subject with the interface. The observer will be called whenever a change in the number is made. More...

#include <ObserverSubject_NumberProducer.h>

Inheritance diagram for IObserverNumberChanged:

Collaboration diagram for IObserverNumberChanged:

Public Types
using	shared_ptr_t = std::shared_ptr< IObserverNumberChanged >
	Alias to make it easier to use this shared pointer.

Public Member Functions
virtual	~IObserverNumberChanged ()
	Virtual destructor required for interfaces in abstract classes.

virtual void	NumberChanged ()=0
	This is called whenever the number in the ObserverSubject_NumberProducer object is changed.

Detailed Description

Represents an observer to the Subject class. An observer implements this interface and then subscribes to the Subject with the interface. The observer will be called whenever a change in the number is made.

This interface is specific to the ObserverSubject_NumberProducer example, which is a typical requirement for a Subject that supports observers.

Definition at line 41 of file ObserverSubject_NumberProducer.h.