This video looks at the Decorator pattern from a conceptual level.
- [Instructor] The Decorator Pattern … is one of those patterns of composition … that you either get or you don't … but once you get it, its power becomes so great … that you use it often within your development techniques. … Within the Spring framework, … decorators are used all over the place. … The frameworks uses decorators … to do much of its operations. … Injecting your decorated objects, … however, is difficult in Spring … because of how bean references work … specifically around shared interfaces. … In order for you to use the decorators for your beans, … you have to use Qualifier annotations … which then makes your code less about IOC … and more about you controlling the injection … throughout your application. … Now, the pattern and the way that it works in a nutshell … is pretty straightforward. … You add responsibilities to an object dynamically … at runtime and you do so through composition … instead of inheritance. … Inherited base classes compose new behavior … and responsibility by becoming additive …
AuthorFrank P Moley III
- 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
Spring: Framework In Depth (2017)with Frank P Moley III2h 16m Intermediate
What you should know1m 28s
1. Design Patterns and Spring
2. Creational Patterns in Spring
3. Structural Patterns in Spring
4. Operational Patterns in Spring
5. Other Framework Patterns in Spring
Next steps3m 27s
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