Observer Class Reference

#include <Subject_Observer.h>

Inheritance diagram for Observer:

List of all members.

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Detailed Description

Observer of the Observer design pattern.

This is a base class for any implementation of a Design pattern Observer. The class that is presenting data must be a child of the base class Observer. The role of this class is to define an updating interface for objects that should be notified of changes in a subject.

  class ControlPanel: public Observer
  {
  public:
  
  int i;
  };

Cite_: Reference: Gamma, E., Helm, R. Johnson, R. et Vlissides, J. Design Patterns - Elements of Reusable Object-Oriented Software. Addison-Wesley, 1995, 395 pages.

Definition at line 99 of file Subject_Observer.h.

Public Member Functions
virtual	~Observer ()
	Destructor.
virtual void	Update (Subject *theChangedSubject)=0
	Virtual function that must be overloaded to refresh the data displayed properly.
Protected Member Functions
	Observer ()
	Constructor.

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Member Function Documentation

void Observer::Update

(

Subject *

theChangedSubject

)

[pure virtual]

Virtual function that must be overloaded to refresh the data displayed properly.

Attention:

Make sure this method is overloaded in your concrete observer.

Parameters:

theChanedSubject

a pointer to the Subject that requested the update

Implemented in Canvas3D, KinControlPanel, and DynControlPanel.

Definition at line 86 of file Subject_Observer.cpp.

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