是桥梁还是立面图案？

Question

And I have C interface which contains A and B interfaces.

Which pattern is this implementing?

public class Service : IService
{
    private readonly IWebServiceProvider _serviceProvider;
    private readonly IDatabaseProvider _dbProvider;

    public Service(IWebServiceProvider serviceProvider, IDatabaseProvider dbInteractionsProvider)
    {
        _serviceProvider = serviceProvider;
        _dbInteractionsProvider = dbInteractionsProvider;
    }

    public IEnumerable<Company> CompanySearch(string name)
    {
        return _dbProvider.CompanySearch(name);
    }

    public ValidationResult ValidateUser(Data data)
    {
        var result = _serviceProvider.ValidateUser(new ValidationData()
        {
            Company = data.CompanyName,
            Password = data.Password,
            Login = data.Login
        });
        return new ValidationResult() { ErrorMessage = result.ErrorMessage };
    }

    public bool ResetPassword(ResetPassword resetPassword)
    {
        throw new System.NotImplementedException();
    }

    public string GenerateURL(int id)
    {
        return _serviceProvider.GenerateURL(id);
    }
}

Answer 1

您提供的代码实现了IoC（控制反转）模式。

Answer 2

To call it the bridge pattern, you need to see evolution paths along abstraction and implementation. Here, implementation evolution (by using different service providers and db providers) paths are seen. But abstraction evolution is not seen in the code given (even though it is possible).

Also, the service class uses two implementation classes related to two different matters. A bridge would ideally represent one thing.

So this is more closer to a facade.