Bridge pattern
De Banane Atomic
Aller à la navigationAller à la recherche
Description
- Decouple an abstraction from its implementation so that the two can vary independently
- Replace the implementation by another one without having to modify the referencing class by using an interface
- It can also be thought of as two layers of abstraction
Exemple
- The client can change the *Logger classes by another without having to modify the UserService.
ILogger.cs |
public interface ILogger { void WriteLine(string text); } |
ConsoleLogger |
public class ConsoleLogger : ILogger { public void WriteLine(string text) { Console.WriteLine(text); } } |
IUserService.cs |
public interface IUserService { void ChangePassword(int userId, string newPassword); } |
UserService.cs |
public class UserService : IUserService { private ILogger logger; public UserService(ILogger logger) { this.logger = logger; } public void ChangePassword(int userId, string newPassword) { logger.WriteLine($"Password has been change for user {userId}."); } } |
IUserService userService = new UserService(new ConsoleLogger()); userService.ChangePassword(1, "0000"); |