0

我有一个接口 IBase,其中包含许多派生接口 IDerived1、IDerived2。我想使用 Autofac 为派生接口注册实现。

给定任何派生接口,我可以为该接口编写解析方法。我想知道的是,有什么方法可以避免在构建容器时枚举所有派生接口的列表?

我现在拥有的是:

public static void Register<TDerived>(ContainerBuilder b) where TDerived : IBase {
    b.Register(cc => DerivedFactory.Create<TDerived>(cc.Resolve<SomeDependency>())
     .As<TDerived>()
     .InstancePerLifetimeScope();
}

// in my registration method
ContainerBuilder b = ...
MethodInfo genericRegisterDerivedMethod = this.GetType().GetMethod("Register", BindingFlags.Public | BindingFlags.Static);
List<Type> allDerivedInterfaces = /* query across various assemblies for interfaces which extend IBase */

allDerivedInterfaces.ForEach(t => genericRegisterDerivedMethod 
    .MakeGenericMethod(t)
    .Invoke(null, new object[] { b })
);

我想要的是:

public static void Create<TDerived>(IComponentContext cc) where TDerived : IBase {
    return DerivedFactory.Create<TDerived>(cc.Resolve<SomeDependency>());
}

// in my registration method
ContainerBuilder b = ...
MethodInfo genericResolveDerivedMethod = this.GetType().GetMethod("Create", BindingFlags.Public | BindingFlags.Static);

b.RegisterDerivedTypesOf<IBase>((cc, t) => (IBase)genericResolveDerivedMethod
    .MakeGenericMethod(t)
    .Invoke(null, new object[] { cc, t })
);

这将避免我在应用程序启动时需要知道 IDerived 接口的完整列表。这可能吗?

4

1 回答 1

0

IDerived我能够使用自定义注册源来解决这个问题,它可以为每个请求的接口服务类型即时构建注册。

于 2013-10-03T15:49:01.293 回答