Unity 2.0 IOC Configuration about Generic class

Question

I want some Repository class extend one common generic class to perform some common operation, problem is: how to config a UserExRepository type in config file.

public class UserExRepository : Repository<User>, IUserEx
{
    public UserExRepository(Context context):base(context){ }
}

public abstract class Repository<TObject> : IRepository<TObject>
    where TObject : class
{
    protected Context Context = null;

    public Repository(Context context)
    {
        Context = context;
    }
    // do some common operation about entity, like create, delete...
}

What type or types are you trying to map to UserExRepository? An IRepository? — ErnieL, Oct 31 '11 at 15:10
Strange generic constraint. Maybe marker interface, e.g. IRepositoryItem`, will make more sense? — abatishchev, Oct 31 '11 at 15:17

score 1 · Accepted Answer · answered Oct 31 '11 at 15:13

You can configure binding generic to generic, generic to non-generic, non-generic to generic,

<unity>
    <containers>
        <container>
            <types>
                 <type type="Repository`1[[User]]" mapTo="UserExRepository ">
            </types>
        </container>
    </containers>
</unity>

but you cannot configure generic constraint.

Unity 2.0 IOC Configuration about Generic class

1 Answers1

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