Once you've learned some design patterns, the question of when to use them arises. In this video, take a step back to consider how design patterns can help you, and learn when to apply them.
- After a long discussion of design patterns, … it's easy to see design patterns can be powerful. … And it's easy to see all kinds of ways … you can use design patterns … in your current and future designs. … Developers love to create beautiful architectures … that are ready to take on change from any direction. … But is that how we should think about patterns? … Don't think of patterns as a magic bullet. … When you see the need for one, … you'll sleep well knowing many developers … have been there before and solved the problem … using similar techniques. … However, patterns aren't the solution to every problem. … - So how do you know which patterns to use? … If you've got a good knowledge of patterns, … you may know of a pattern that is a good match. … Otherwise, review patterns that look like … they might solve the problem. … Once you've found a pattern … that appears to be a good match, … make sure it has a set of consequences … you can live with and study its effects … on the rest of your design. …
- What are design patterns?
- Encapsulating code that varies with the Strategy pattern
- The limitations of inheritance
- Using the Adapter pattern
- Implementing the Observer pattern
- Extending behavior with composition and the Decorator pattern
- Encapsulating iteration with the Iterator pattern
- Object creation with the Factory Method pattern
- Using design principles to guide your object-oriented design
Skill Level Intermediate
1. Design Patterns
2. The Strategy Pattern
3. The Adapter Pattern
4. The Observer Pattern
Using the Observer pattern2m 23s
5. The Decorator Pattern
6. The Iterator Pattern
7. The Factory Patterns
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