Clean Code

Episode 18

This episode reviews the component principles.

Overview
Payroll Review
- Controller use Builder to request data structure that they pass to interactor that they acquire from Factory. The interactor manipulate entity and database which create response data structure. The response data structure pass into Presenter which create view model data structure, which driven into view.
Ad Hoc Packaging
Cohesion
- High level abstraction should not depend on low level concrete details
Coupling
- No cycle
- Concrete components depends on abstract components
- Unstable components depends on stable components
Families and Metrics
- Separating use cases and component that doesn’t belong together
References
- Agile Software Development, Robert Martin