ninject 继承接口(interface)

Question

我有如下两个基本接口(interface)，一个继承另一个。我将它们绑定(bind)到如下实现..

public interface IUnitOfWork { }
public interface IEventStoreUnitOfWork : IUnitOfWork { }

public class TransactionalHandler<TCommand, TCommandHandler> {
    public TransactionalHandler(IUnitOfWork unitOfWork) {
            // removed
    }
}

public class EventStoreUnitOfWork : IEventStoreUnitOfWork { }

绑定(bind)...

Bind<IEventStoreUnitOfWork>().To<EventStoreUnitOfWork>();

Bind<TransactionalHandler<IDomainCommand, IDomainCommandHandler<IDomainCommand>>>()
    .ToSelf()
    .WithConstructorArgument("unitOfWork", Kernel.GetService(typeof(IEventStoreUnitOfWork)));

这是行不通的。错误是:

Error activating IUnitOfWork
No matching bindings are available, and the type is not self-bindable.
Activation path:
 2) Injection of dependency IUnitOfWork into parameter unitOfWork of constructor of type TransactionalHandler{CreateUserCmd, CreateUserCmdHandler}
 1) Request for TransactionalHandler{CreateUserCmd, CreateUserCmdHandler}

这里发生了什么？显然 IUnitOfWork 是由 IEventStoreUnitOfWork 继承的，它有一个绑定(bind)。我尝试过这个，但我得到了同样的错误......

Bind<TransactionalHandler<IDomainCommand, IDomainCommandHandler<IDomainCommand>>>()
 .ToSelf()
 .WithConstructorArgument("unitOfWork", Kernel.GetService(typeof(IEventStoreUnitOfWork)) as IUnitOfWork);

有任何想法吗？

谢谢

Answer 1

Aaron jensen 有一个 ninject fork，如果你绝对需要这种行为，它会在 github 上考虑基本类型