April 2018
Beginner
536 pages
13h 21m
English
Interfaces are used to declare how two or more software components cooperate and exchange information with each other. This declaration is known as an application programming interface (API). In the previous example, our interface was PersistanceServiceInterface, and it was implemented by the classes LocalStoragePersitanceService and CookiePersitanceService. The interface was consumed by the FavouritesController class, so we say that this class is a client of the PersistanceServiceInterface API.
The interface segregation principle (ISP) states that no client should be forced to depend on methods it does not use. To adhere to the ISP, we need to keep in mind that when we declare the API (how two ...