Question

I have a class called initialize that runs at the beginning of my program. Originally I explicitly hard coded all the classes that it was supposed to instantiate but I would like to make it more generic and remove the hard coded classes so I can mark the class closed for modification.

My first thought was to create a queue of Types that my initialize class would cycle through and instantiate all the Types that are in the queue.

I then wanted to decide on a per class basis if it should be added to the queue or not. By adding itself to the queue from within the class. The problem is that I cant add a class to the queue unless it is already been instantiated. I know that variables can be initialized before running but obviously not methods. So Im stuck on figuring out weather what I would like to do is possible on not.

Something along the Lines of:

MyClass
{

 initalize.instance.Enqueue(typeof(MyClass));
}

Answer 1

I meant something along these lines.

    public static class Initializer
    {
        public static void Initialize()
        {
            foreach (var assembly in AppDomain.CurrentDomain.GetAssemblies())
                foreach (var type in assembly.GetTypes())
                    if (type.IsDefined(typeof(InitializeAttribute), true))
                        Console.WriteLine("Need to initialize {0}", type.FullName);
        }
    }

    [AttributeUsage(AttributeTargets.Class)]
    public sealed class InitializeAttribute : Attribute
    { 
    }

    [Initialize]
    public sealed class ToBeInitialized
    { 
    }