简单喷油器中的工厂设施

Question

I am migrating from Windsor to Simple Injector , I tried to follow the following this link . But I could not find any replacement for:

container.AddFacility<TypedFactoryFacility>();
container.Register(Component.For<ICacheDependencyFactory>().AsFactory());

What will be the replacement the above code in Simple Injector ?

Edited:

ICacheDependencyFactory.cs

public interface ICacheDependencyFactory
{
    T Create<T>()
       where T : ICacheDependency;

    void Release<T>(T cacheDependency)
        where T : ICacheDependency;
}

Answer 1

Castle's factory facility is able to generate a proxy class based on the interface you supply. This proxy class will call back into the container to request the creation of a new instance of such type.

Simple Injector lacks such feature. Simple Injector doesn't implement this, because:

• The number of factories your application code needs, should be fairly limited (to just a couple at most). Well designed applications hardly need factories.
• It's really easy to implement this with a hand-written factory.
• Hand-written factories should be part of your composition root (where there already is a dependency on the container). This prevents application code from having to take a dependency on the container.

Here's an example:

private sealed class CacheDependencyFactory : ICacheDependencyFactory {
    public Container Container { get; set; }
    public T Create<T>() where T : ICacheDependency, class {
        return this.Container.GetInstance<T>();
    }
}

This factory can be registered as follows:

container.RegisterSingle<ICacheDependencyFactory>(
    new CacheDependencyFactory { Container = container });