Join Jungwoo Ryoo for an in-depth discussion in this video Bridge, part of Python: Design Patterns.
- The bridge pattern helps untangle an unnecessary…complicated class hierarchy,…especially when implementation specific classes…are mixed together with…implementation-indendent classes.…So our problem here is…that there are two parallel or orthogonal…abstractions.…One is implementation-specific,…and the other one is implementation-independent.…
And our scenario involves…this implementation-independent circle abstraction…and implementation-dependent circle abstraction.…The implementation-dependent circle abstraction…involves how to draw a circle,…and implementation-independent circle abstraction…involves how to define the properties of a circle…and scale it.…The key to our solution is not trying to abstract…both implementation-specific…and implementation-independent classes…in a single class hierarchy.…
The abstract factory and adaptor patterns…are the related patterns to this rich design pattern.…
- Understanding design patterns
- Best design practices: consistency, completeness, and correctness
- Working with creational patterns
- Working with structural patterns
- Working with behavioral patterns
Skill Level Intermediate
Q: In the strategy pattern example, why does the code keep executing the default function rather than the alternate?
A: The programming demonstration skips the step of defining what the strategy pattern should be when an alternate function name is provided
as an argument as shown below.
Programming Foundations: Design Patternswith Elisabeth Robson2h 19m Intermediate
1. Understanding Design Patterns
2. Creational Patterns
3. Structural Patterns
4. Behavioral Patterns
5. Design Best Practices
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