Join Jungwoo Ryoo for an in-depth discussion in this video Types of design patterns, part of Python: Design Patterns.
- There are mainly three different types of design patterns.…One is Creational, the other is Structural,…and another one is Behavioral.…The Creational design patterns are mainly used…to create objects in a systematic way.…The main benefit behind these Creational Patterns…lies in its flexibility.…For example, different subtypes of objects…from the same classes can be created at runtime…when you use these Creational Patterns.…
Structural Patterns are used to establish…these useful relationships between…software elements or components…in certain settings or configurations.…The goal here is mainly to accomplish…certain functional or nonfunctional requirements.…Therefore, these efforts to accomplish…these different goals typically lead to…different structures implemented in Structural Patterns.…Behavioral Patterns are the best practices…of how you make your objects interact with each other.…
The focus here is really defining the protocols…in between these objects when they're trying to…work together to accomplish a common goal.…
Author
Jungwoo Ryoo
Released
7/16/2015- 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
Duration
Views
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.
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Introduction
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Welcome34s
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1. Understanding Design Patterns
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What is a design pattern?2m 18s
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Types of design patterns1m 47s
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2. Creational Patterns
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Factory48s
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Factory example6m 44s
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Abstract factory1m 24s
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Abstract factory example5m 23s
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Singleton57s
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Singleton example5m 32s
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Builder1m 44s
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Builder example4m 34s
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Prototype58s
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Prototype example6m 2s
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3. Structural Patterns
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Decorator51s
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Decorator example4m 23s
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Proxy1m 7s
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Proxy example5m 19s
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Adapter37s
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Adapter example5m 54s
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Composite1m 14s
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Composite example4m 56s
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Bridge1m 12s
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Bridge example4m 46s
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4. Behavioral Patterns
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Observer1m 1s
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Observer example7m 27s
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Visitor48s
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Visitor example6m 59s
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Iterator1m 9s
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Iterator example4m 10s
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Strategy37s
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Strategy example6m 1s
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5. Design Best Practices
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Consistency2m 18s
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Other qualities2m 42s
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Conclusion
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Next steps28s
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Video: Types of design patterns