This video is an exercise about implementing the Decorator pattern and having the framework utilize it.
- [Instructor] So, we've talked at a high … level about the decorator and how it's used. … Let's jump into code and take a … look at its actual implementation. … We're going to start with our base package in scr/main/java. … And we're going to create a new package. … This time, called decorator. … Now, one of the easiest examples to use … of a decorator is the concept of a pizza. … And that's what we're going to do. … So, we will create a class of Name: Pizza. … And we will make that class abstract. … Now, we're going to add a protected … string on here, called description. … And then we will create a public string, … getDescription method, that will return that description. … Then we're going to put a public abstract method, … that returns a BigDecimal, called getCost. … Okay. … So, now we've got our pizza. … So, let's create a concrete instance of a pizza. … And we will create a ThickCrustPizza. … Now, we're going to extend Pizza here. … And we will create a public ThickCrustPizza constructor. …
Author
Released
3/22/2019- The patterns of the Spring framework
- Creational patterns in Spring
- The adapter and decorator pattern in action
- Structural patterns in Spring
- The repository pattern in action
- The observer, command, and mediator patterns
Skill Level Advanced
Duration
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Introduction
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What you should know1m 28s
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1. Design Patterns and Spring
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What are design patterns2m 28s
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Gang of Four3m 38s
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2. Creational Patterns in Spring
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The Factory pattern4m 39s
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Factory pattern in action5m 38s
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The Builder pattern2m 55s
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The Singleton pattern4m 1s
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Singleton pattern in action4m 55s
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The Prototype pattern4m 36s
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Prototype pattern in action4m 59s
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3. Structural Patterns in Spring
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The Adapter pattern5m 13s
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Adapter pattern in action5m 12s
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The Decorator pattern3m 26s
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Decorator pattern in action4m 39s
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The Proxy pattern4m 10s
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4. Operational Patterns in Spring
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The Repository pattern3m 13s
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Repository pattern in action5m 12s
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The Template pattern4m 34s
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5. Other Framework Patterns in Spring
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The Observer pattern4m 49s
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The Command pattern3m 50s
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The Mediator pattern3m 15s
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The Interpreter pattern3m 10s
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Conclusion
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Next steps3m 27s
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Video: Decorator pattern in action