QueryInvoker

gistfile1.cs

    public interface IQueryInvoker
    {
        TViewModel Invoke<TViewModel>() where TViewModel : new();
    }

    public class QueryInvoker : IQueryInvoker
    {
        private readonly IObjectResolver _objectResolver;

        public QueryInvoker(IObjectResolver objectResolver)
        {
            _objectResolver = objectResolver;
        }

        public TViewModel Invoke<TViewModel>() where TViewModel : new()
        {
            var viewmodel = new TViewModel();
            var handler = _objectResolver.Resolve<IQueryHandler<TViewModel>>();
            handler.Handle(viewmodel);
            return viewmodel;
        }
    }

    public interface IQueryHandler<TViewModel>
    {
        void Handle(TViewModel viewmodel);
    }

    public interface IObjectResolver
    {
        T Resolve<T>();
    }

    public class ObjectResolver : IObjectResolver
    {
        public T Resolve<T>()
        {
            return ObjectFactory.GetInstance<T>();
        }
    }