Patterns in your Pastry
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The document discusses various design patterns that can be used when programming such as MVC, Factory, Singleton, Strategy, and Observer. MVC separates an application into three layers - model, view, controller. The factory pattern creates objects without exposing instantiation logic. The singleton pattern ensures only one instance can be created. Strategy changes a process based on criteria. Observer notifies other objects of state changes through subscriptions.
Patterns in your Pastry
- 1. Patterns In Your PastryPatterns In Your Pastry Image credit:Image credit: EvelynGiggles (EvelynIsHere)EvelynGiggles (EvelynIsHere) - http://www.flickr.com/photos/evelynishere/3662124836- http://www.flickr.com/photos/evelynishere/3662124836 James Watts james.watts @ cakephp.org CakeFest 2013: The CakePHP Conference August 31st , 2013 – San Francisco, USA
- 2. WARNINGWARNING Image credit:Image credit: Vegan Feast Catering (VeganFeast)Vegan Feast Catering (VeganFeast) - http://www.flickr.com/photos/veganfeast/4139656092- http://www.flickr.com/photos/veganfeast/4139656092
- 3. WARNINGWARNING You may feel hungryYou may feel hungry at some point duringat some point during this presentationthis presentation Image credit:Image credit: Vegan Feast Catering (VeganFeast)Vegan Feast Catering (VeganFeast) - http://www.flickr.com/photos/veganfeast/4139656092- http://www.flickr.com/photos/veganfeast/4139656092
- 4. Design PatternsDesign Patterns Image credit:Image credit: Andrew Michaels (dragontomato)Andrew Michaels (dragontomato) - http://www.flickr.com/photos/dragontomato/3050561189- http://www.flickr.com/photos/dragontomato/3050561189
- 5. There are many!There are many! Image credit:Image credit: James Lee (jronaldlee)James Lee (jronaldlee) - http://www.flickr.com/photos/jronaldlee/7033839441- http://www.flickr.com/photos/jronaldlee/7033839441
- 6. Image source:Image source: AmazonAmazon - http://www.amazon.com/Design-Patterns-Elements-Reusable-Object-Oriented/dp/0201633612- http://www.amazon.com/Design-Patterns-Elements-Reusable-Object-Oriented/dp/0201633612
- 7. MVCMVC Image credit:Image credit: Helen (afeitar)Helen (afeitar) - http://www.flickr.com/photos/afeitar/8039909030- http://www.flickr.com/photos/afeitar/8039909030
- 8. - M - V - C
- 9. - Model - V - C
- 10. - Model - View - C
- 11. - Model - View - Controller
- 12. - Business - Presentation - Mediation
- 13. - Business - Presentation - Mediation
- 14. - Business - Presentation - Mediation “ separation of concerns ”
- 15. Neither layer . . .
- 16. Neither layer . . . - wants to know
- 17. Neither layer . . . - wants to know - should know
- 18. Neither layer . . . - wants to know - should know - or can know
- 19. Neither layer . . . - wants to know - should know - or can know about the other
- 20. Front ControllerFront Controller Image credit:Image credit: Zrendavir_ (zrendavir)Zrendavir_ (zrendavir) - http://www.flickr.com/photos/zrendavir/3074941476- http://www.flickr.com/photos/zrendavir/3074941476
- 21. Single Point of Entry
- 22. Single Point of Entry Obvious Jokes Omitted
- 24. Template MethodTemplate Method Image credit:Image credit: Phil and Pam Gradwell (philandpam)Phil and Pam Gradwell (philandpam) - http://www.flickr.com/photos/philandpam/2195674013- http://www.flickr.com/photos/philandpam/2195674013
- 25. Override steps Of a process
- 27. “ Hooks “
- 29. FactoryFactory Image credit:Image credit: Philippe Du Berger (DubyDub2009)Philippe Du Berger (DubyDub2009) - http://www.flickr.com/photos/urbexplo/4360787743- http://www.flickr.com/photos/urbexplo/4360787743
- 30. Create an Object Without exposing Instantiation logic
- 31. Animal
- 32. Animal Cat
- 33. Animal Dog Cat
- 35. Animal Factory
- 36. Create ( 'dog' )
- 39. UtilityUtility Image credit:Image credit: Kiran Foster (rueful)Kiran Foster (rueful) - http://www.flickr.com/photos/rueful/5697846897- http://www.flickr.com/photos/rueful/5697846897
- 41. Static
- 43. Active RecordActive Record Image credit:Image credit: Marcin Wichary (mwichary)Marcin Wichary (mwichary) - http://www.flickr.com/photos/mwichary/2481681915- http://www.flickr.com/photos/mwichary/2481681915
- 44. ORM
- 46. Database Row = Object
- 47. Array
- 48. CRUD
- 49. CRUD Create, Read, Update, Delete
- 51. DecoratorDecorator Image credit:Image credit: U.S. Army Corps of Engineers (usacehq)U.S. Army Corps of Engineers (usacehq) - http://www.flickr.com/photos/usacehq/8723898265- http://www.flickr.com/photos/usacehq/8723898265
- 52. Add Behaviors To an Object
- 54. “ MIXIN “ OR “ TRAIT “
- 56. SingletonSingleton Image credit:Image credit: Kevin Jones (kj-an)Kevin Jones (kj-an) - http://www.flickr.com/photos/kj-an/2294604279- http://www.flickr.com/photos/kj-an/2294604279
- 57. There can only be one
- 58. Only Allow a Single Instance
- 61. StrategyStrategy Image credit:Image credit: Lucas Arts/Walt DisneyLucas Arts/Walt Disney
- 62. Change a Process Based on Criteria
- 65. AdaptorAdaptor Image credit:Image credit: gwire (gwire)gwire (gwire) - http://www.flickr.com/photos/gwire/336458831- http://www.flickr.com/photos/gwire/336458831
- 67. Normalization
- 68. “ Wrapper ”
- 70. ObserverObserver Image credit:Image credit: nociveglia (gwire)nociveglia (gwire) - http://www.flickr.com/photos/40385177@N07/4256525264- http://www.flickr.com/photos/40385177@N07/4256525264
- 71. Notifications
- 72. State Change
- 73. Event Driven