CSC307 Lecture 10

Introduction to Software Engineering
Patterns II
(202407)

Transcript

1. Dr. Javier Gonzalez-Sanchez javiergs@calpoly.edu www.javiergs.info o ffi ce: 14 -227 CSC 307 Introduction to Software Engineering Lecture 10. Patterns II
2. Previously
3. Relationships 3 Association Directed Association Reflexive Association Multiplicity Aggregation Composition Generalization Realization
4. Observer 4
5. Singleton 5
6. GoF Patterns 6
7. Decorator Composite
8. Decorator | Composite 8
9. Decorator | Composite 9
10. Problem 10
11. Inheritance Approach 11
12. Inheritance Approach 12
13. Inheritance Approach 13
14. Decorator vs Inheritance • Both a llow you to ch a nge how a n object beh a ves. • The decor a tor p a ttern a llows you to extend (decor a te) the function a lity of a n object a t runtime. • Inherit a nce a dds beh a vior a t compil a tion time. 14
15. Decorator | Composite 15
16. Decorator | Composite 16
17. Decorator 17
18. Composite 18
19. Example 19
20. Component 20 https://github.com/CSC3100/Patterns
21. ConcreteComponent | Ball 21 https://github.com/CSC3100/Patterns
22. Decorator 22 https://github.com/CSC3100/Patterns
23. ConcreteDecoratorOne | Bag 23 https://github.com/CSC3100/Patterns
24. ConcreteDecoratorTwo | Box 24 https://github.com/CSC3100/Patterns
25. Main 25 dr a w dr a w dr a w https://github.com/CSC3100/Patterns
26. Composite | Example 26 dr a w
27. Decorator vs Inheritance • Both a llow you to ch a nge how a n object beh a ves. • The decor a tor p a ttern a llows you to extend (decor a te) the function a lity of a n object a t runtime. • Inherit a nce a dds beh a vior a t compil a tion time. 27
28. Homework 28 Reading https://medium.com/javarevisited/software-design-patterns-decorator-in-a-nutshell-eefd2025ea3c
29. Connecting the Dots
30. Application 30
31. Application | GUI 31 Main JFrame ChartPanel JPanel
32. Application | Data Gathering 32 Main JFrame ChartPanel Thread Genius JPanel
33. Application | Observer 33 Main JFrame ChartPanel Thread <<Singleton>> Board Genius JPanel PropertyChange Listener PropertyChange Support
34. MarkerDecoratorShadow MarkerDecoratorDot MarkerSimple Application | Decorator 34 MarkerDecoratorDot MarkerSimple MarkerSimple
35. Main 35 https://github.com/CSC3100/Patterns
36. Genius | Runnable 36 https://github.com/CSC3100/Patterns
37. Board | Singleton, Observable 37 https://github.com/CSC3100/Patterns
38. ChartPanel | Observer 38 https://github.com/CSC3100/Patterns
39. Marker | Decorator 39 https://github.com/CSC3100/Patterns
40. MarkerDecorator | Decorator 40 https://github.com/CSC3100/Patterns
41. MarkerDecoratorBar | Decorator 41 https://github.com/CSC3100/Patterns
42. MarkerDecoratorDot | Decorator 42 https://github.com/CSC3100/Patterns
43. MarkerSimple | Decorator 43 https://github.com/CSC3100/Patterns
44. Note 44 UML Class Diagram
45. Questions 45
46. Questions 46
47. Lab.
48. NumberGenerator.java 48
49. To Do 49 Make it Singleton
50. Screen.java 50
51. Main.java 51
52. To Do 52 Compile and Run
53. To Do 53 Create a Class Diagram
54. CSC 307 Introduction to Software Engineering Javier Gonzalez-Sanchez, Ph.D. javiergs@calpoly.edu Spring 2025 Copyright. These slides can only be used as study material for the class CSC307 at Cal Poly. They cannot be distributed or used for another purpose.