Forcing a class to have a constructor

Question

How can I force a class have a specified constructor signature without using abstract classes? I googled and found that we couldn't use interfaces to do it.

[Updated]

e.g, I have the the following Interface:

public interface IListView<TViewModel, TListQueryParameter, TSingleQueryParameter>
    where TListQueryParameter : IQueryParameter<IEnumerable<TViewModel>>, new()
    where TSingleQueryParameter : IQueryParameter<TViewModel>
{
    ...
    IQueryHandler<TListQueryParameter, IEnumerable<TViewModel>> FindListDataQueryHandler { get; }
    IQueryHandler<TSingleQueryParameter, TViewModel> FindSingleEntityQueryHandler { get; }
    ...
}

and I want to inject QueryHandlers using constructor of each Form that implement the IListView.

Why do you need it? That will help you to get better answers — Sriram Sakthivel, Jul 19 '14 at 10:12
It should not be the responsibility of `IListView` to enforce ctor injection over property injection. — H H, Jul 19 '14 at 10:21
http://docs.structuremap.net/ConstructorAndSetterInjection.htm#section6 — Sriram Sakthivel, Jul 19 '14 at 10:25
http://stackoverflow.com/questions/4979453/structuremap-beginner-property-injection might also help — Aniket Inge, Jul 19 '14 at 10:25

score 0 · Answer 1 · answered Jul 19 '14 at 10:19

0

If you want to inject a dependency, then use a Dependency Injection system or a DI resolver. This is called property injection. Try UNITY or Ninject.

answered Jul 19 '14 at 10:19

Aniket Inge

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score 0 · Accepted Answer · answered Jul 19 '14 at 10:26

0

Looks like structuremap does supports property injection here and here, that's what you're looking for.

answered Jul 19 '14 at 10:26

Sriram Sakthivel

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Forcing a class to have a constructor

2 Answers2