Implementing IRepository for multiple domains

Question

I have implemented IRepository interface for multiple domains but I don't know how to call specific method.

Below is the code :

public interface IRepository<T> where T : class
{
    IEnumerable<T> GetAll();
    void Add(T entity);
    void Update(T entity);
}


public interface IProjectRepository : IRepository<ProjectType>, IRepository<Project>, IRepository<ProjectDetail>
{
}

public class ProjectRepository : IProjectRepository
{
// implemenation

}

Now, When I create object of ProjectRepository class it shows all methods of interface but only expecting projecttype parameter.

I don't know, is it correct way of implementation? or Is there another way to implement similar thing?

http://stackoverflow.com/questions/5625746/generic-repository-with-ef-4-1-what-is-the-point — Euphoric, Nov 15 '13 at 08:59

EgorBo · Answer 1 · 2013-11-15T14:23:18.427

4

Generic repository IRepository<T> is not a good solution IMO, take a look at http://www.sapiensworks.com/blog/post/2012/03/05/The-Generic-Repository-Is-An-Anti-Pattern.aspx

I think it's better to specify each repository separately without generic paramter and common methods (are you sure you will always need Add, Update, GetAll in all of your repositories?)

edited Nov 15 '13 at 14:23

answered Nov 15 '13 at 09:03

EgorBo

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It's a very, very moot point. Especially, considering how this is stated in the blog you referred. – Dennis Nov 15 '13 at 10:21

alinaish · Answer 2 · 2013-11-15T09:44:55.390

I think it can be better to create Generic repository with Unit of Work pattern.
Take a look at
http://www.asp.net/mvc/tutorials/getting-started-with-ef-5-using-mvc-4/implementing-the-repository-and-unit-of-work-patterns-in-an-asp-net-mvc-application
this is good tutorial about implementation Generic repository with Unit of Work
And at http://contosontiermvc.codeplex.com/SourceControl/changeset/view/13936#ContosoUniveristy/ContosoUniveristy/Controllers/CourseController.cs
.this is code example

Implementing IRepository for multiple domains

2 Answers2