How far does Dependency Injection reach?
- by Baddie
My web app solution consists of 3 projects:
Web App (ASP.NET MVC)
Business Logic Layer (Class Library)
Database Layer (Entity Framework)
I want to use Ninject to manage the lifetime of the DataContext generated by the Entity Framework in the Database Layer.
The Business Logic layer consists of classes which reference repositories (located in the database layer) and my ASP.NET MVC app references the business logic layer's service classes to run code. Each repository creates an instance of the MyDataContext object from the Entity Framework
Repository
public class MyRepository
{
private MyDataContext db;
public MyRepository
{
this.db = new MyDataContext();
}
// methods
}
Business Logic Classes
public class BizLogicClass
{
private MyRepository repos;
public MyRepository
{
this.repos = new MyRepository();
}
// do stuff with the repos
}
Will Ninject handle the lifetime of MyDataContext despite the lengthy dependency chain from the Web App to the Data Layer?
