Create instances of a class that needs a constructor argument with StructureMap

Question

I have the following classes:

public class AllowanceManager : IAllowanceManager
{
    public AllowanceManager(ITranslationManager t_Manager, ISessionManager s_Manager)
    {...}
}

public class TranslationManager : ITranslationManager
{
    public TranslationManager(string culture) 
    {...}
}

public class SessionManager : ISessionManager
{
    public SessionManager(string key) 
    {...}
}

How can I initialize this classes up in ObjectFactory so that getting an instance of IAllowanceManager also autowires and initializes (with the constructor arguments) StateManager and TranslationManager. So that I only need to retrieve the instance of IAllowanceDeduction like so:

IAllowanceManager a_Manager = ObjectFactory....// Gets Allowancemanager configured    with initialized instances of IStateManager and ITranslationManager

Answer 1

Edit: Even shorter.

Put this in your bootstrapper code:

ForRequestedType<IAllowanceManager>().TheDefault.Is
       .ConstructedBy(() => new Allowancemanager(new StateManager(), new TranslationManager()));

Answer 2

Using 2.6.1 syntax it could be written:

For<ISessionManager>().Use<SessionManager>()
  .Ctor<string>("key").Is(c => GetSessionKey());
For<ITranslationManager>().Use<TranslationManager>()
  .Ctor<string>("culture").Is(c => Thread.CurrentThread.CurrentCulture.Name);
For<IAllowanceManager>.Use<AllowanceManager>();

where GetSessionKey returns your session key in a way similar to how the culture is resolved.

See this blog entry for a more in depth description of how to resolve contructor arguments.

Answer 3

I have come up with the following solution:

IStateManager stateManager = ObjectFactory
    .With<string>("key")
    .GetInstance<IStateManager>();

ITranslationManager translationManager = ObjectFactory
    .With<string>("culture")
    .GetInstance<ITranslationManager>();

manager = ObjectFactory
    .With<ITranslationManager>(translationManager)
    .With<IStateManager>(stateManager)
    .GetInstance<IAllowanceDeductionManager>();