Represents an observer that prints out the current number from the Subject in decimal. More...

#include <Observer_Class.h>

Inheritance diagram for ObserverForDecimal:

Collaboration diagram for ObserverForDecimal:

Public Member Functions
	ObserverForDecimal (INumberProducer::shared_ptr_t numberProducer)
	Constructor.

void	NumberChanged ()
	Called whenever the number is changed in the number producer. This observer instance must first be subscribed to the number producer to receive calls on this method.

Public Member Functions inherited from IObserverNumberChanged
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.

Private Attributes
INumberProducer::shared_ptr_t	_numberProducer
	The number producer from which to get the current number.

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

Detailed Description

Represents an observer that prints out the current number from the Subject in decimal.

Definition at line 28 of file Observer_Class.h.

Constructor & Destructor Documentation

◆ ObserverForDecimal()

ObserverForDecimal ( INumberProducer::shared_ptr_t numberProducer )

inline

Constructor.

Parameters

numberProducer A number producer as represented by an INumberProducer interface. Cannot be null.

Definition at line 42 of file Observer_Class.h.

Member Function Documentation

◆ NumberChanged()

void NumberChanged ( )

inlinevirtual

Called whenever the number is changed in the number producer. This observer instance must first be subscribed to the number producer to receive calls on this method.

In this example, this notification handler prints out the current number in decimal.

Implements IObserverNumberChanged.

Definition at line 61 of file Observer_Class.h.

References ObserverForDecimal::_numberProducer, and Helpers::formatstring().