Holub on patterns 2 2
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This document discusses removing dependency on concrete classes by using interfaces and patterns like abstract factory and strategy. It recommends using interfaces instead of extending concrete classes. Abstract factory creates objects through factory methods while encapsulating object creation. Singleton and abstract factory patterns are described as ways to remove extends. Strategy pattern is presented as an alternative to dependency on concrete classes.
Holub on patterns 2 2
- 1. Holub on Patterns Remove extends charsyam@naver.com
- 3. Extends is not Bad.
- 4. Just. Using Concrete Class is Bad
- 6. How to Remove Extens?
- 11. Using 1
- 12. Factory <<interface>> EmployeeFactory Employee <<Employee>>+create() Peon <<void>>+youAreFired()
- 13. Using 2
- 14. Using 3
- 16. 2 Patterns Singleton Abstract Factory
- 17. Pass Singleton Pattern Threading Issue Don’t Use Double-Checked Locking
- 18. Abstract Factory Pattern NOT Factory Method Pattern Factory is changable
- 22. Abstraction 2 Employee.Factory.create(); Employee.create();
- 23. Java Example HttpURLConnection FtpURLConnection
- 24. 2 Patterns Command Strategy
- 25. Pass Command Pattern Default Pattern
- 26. Strategy Example
- 27. Thank You!