How to get StructureMap to return a specific instance for a requested type

Question

Hi,

I want to register a specific instance of an object for a type in structuremap, how can I do that?

For example,

When I do:

var myObj = ObjectFactory.GetInstance(typeof(MyAbstractClass));

i would like it to return a previously constructed concrete class, which i created like this:

var myClass = new MyConcreteClass("bla"); // MyConcreteClass : MyAbstractClass

so

myObj == myClass

How do i register myClass with structuremap to facilitate this?

Thanks

Andrew

Answer 1

I believe you would do this in you initialization

        ObjectFactory.Initialize(x =>
        {
            x.ForRequestedType<MyAbstractClass>().TheDefault.IsThis(myClass);
        });

Where myClass is the instance of the object you want to return.

Answer 2

You can inject a concrete instance as the default by

ObjectFactory.Inject(typeof(MyAbstractClass), myClass);