« Bridge pattern » : différence entre les versions

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(Page créée avec « Category:CSharp Category:Design Patterns = Description = * Decouple an abstraction from its implementation so that the two can vary independently »)
 
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[[Category:Design Patterns]]
[[Category:Design Patterns]]
= Description =
= Description =
* Decouple an abstraction from its implementation so that the two can vary independently
* Decouple an abstraction from its implementation so that the two can vary independently.
 
= Exemple =
<filebox fn='ILogger.cs'>
public interface ILogger
{
    void WriteLine(string text);
}
</filebox>
 
<filebox fn='ConsoleLogger'>
public class ConsoleLogger : ILogger
{
    public void WriteLine(string text)
    {
        Console.WriteLine(text);
    }
}
</filebox>
 
<filebox fn='IUserService.cs'>
public interface IUserService
{
    void ChangePassword(int userId, string newPassword);
}
</filebox>
 
<filebox fn='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}.");
    }
}
</filebox>
 
<kode lang='cs'>
IUserService userService = new UserService(new ConsoleLogger());
userService.ChangePassword(1, "0000");
</kode>

Version du 6 juin 2020 à 22:22

Description

  • Decouple an abstraction from its implementation so that the two can vary independently.

Exemple

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}.");
    }
}
Cs.svg
IUserService userService = new UserService(new ConsoleLogger());
userService.ChangePassword(1, "0000");