oop - back to basic

• 1. OOP Back to Basic! Gran Hansen Seniorkonsulent, Capgemini http://blog.goeran.no [email_address] Twitter.com/goeran

2. 3. 4. 5. 6.

• Vi kanunng spagettikodeved bry oss omkvaliteten p koden vi skriver !

7.

• What does these have in common?

.NET VB.NET C# Ruby Python Silverlight Flash Java ASP.NET MVC Ruby on Rails WPF Azure 8. 9.

• Object Orientation!

10.

• Encapsulation, Inheritance, Polymorphism

11.

• Loose Coupling

12. 13. 14.

• Cohesion

15. 16. 17.

• Design Principles

18.

• Single Responsibility Principle SRP There should never be more thanone reasonfor the classto change Tom DeMarco

• http://www.objectmentor.com/resources/articles/srp.pdf

19.

• Dependency Inversion Principle DIP High level modules should not depend upon low level modules. Bothshould depend upon asbtractions

• Abstractions should not depend upon details.Details should depend upon abstractions

• - Robert C. Martin (Unclebobmartin)

• http://www.objectmentor.com/resources/articles/dip.pdf

20.

• Open-Closed Principle OCP

• Should beopen for extensionsbutclosed for modification Bertand Meyer (1988)

• http://www.objectmentor.com/resources/articles/ocp.pdf

21.

• SRP

• DIP

• OCP

22.

• S . O .L.I. D

23.

• Vi kanunng spagettikodeved bry oss omkvaliteten p koden vi skriver !

24. 25.

• Recommended reading

26.

• http://www.objectmentor.com/resources/publishedArticles.html

• http://msdn.microsoft.com/en-us/magazine/cc546578.aspx

• http://blog.objectmentor.com/

• http://codebetter.com/blogs/jeremy.miller/

27. OOP Back to Basic! Gran Hansen Seniorkonsulent, Capgemini http://blog.goeran.no [email_address] Twitter.com/goeran