Autofac触发Lifetimescope的创建

Question

Is there any way to cause the creation of a new lifetimescope when resolving a component?

Meaning something like

container.registerType().As().TriggersNewScope()

Is there any other way of doing that? Other than taking dependency on ILifetimeScope and to directly resolve through it?

If there isn't, is there a way to abstract the ILifetimeScope ? I don't want that part of the application to reference Autofac..

Thanks

Answer 1

There's not really a "component triggers lifetime scope creation" thing as such. However, you may be interested in Owned<T> . That causes a component to be resolved in its own little lifetime.

Answer 2

You need to register your reused service as InstancePerOwned .

The remaining unsolved part is avoiding reference to Autofac, here is a possible workaround:

• Define your IOwned interface in your Autofac agnostic assembly.

• Define and register open-generic CustomOwned implementation in Autofac aware composition root:

   class CustomOwned<T> : IOwned<T>, IDisposable { public T Value { get { return _owned.Value; } } public CustomOwned(Autofac.Owned<T> owned) { _owned = owned; } // IDisposable implementation and whatever additional stuff } 

• Use IOwned instead of Owned in your types.