Abstract away LightSpeedContext in business logic located in separate class library

Hi, I would like to know the best method for abstracting away the LightSpeedContext in business logic that is located in a separate class library. The separate class library will obviously have a reference to the LightSpeed model but should be instantiating a LightSpeedContext - that should be up to the application that is using the class library.

Can anyone suggest a suitable method (configuration, IOC, etc), perhaps with an example? I am looking to utilise the business logic class library and model class library in an existing Asp.Net WebForms application.

Cheers,

Jeremy.

The running application should be responsible for setting up the LightSpeedContext as it will have awareness of the environment you are running in.

The normal approach we take for a solution which needs to share the model around is to have the model in its own class library, with partials as needed and then to reference that assembly from the other projects which are making use of it. Each of those projects would then have a LightSpeedContext and create UnitOfWork instances as needed.

Have a look at the Aptitude Test sample for an example - in this project we have the model file in the web application itself but the same approach would apply for when the model is factored out into its own project.

Jeremy

Jeremy,

I've had a look at the example and I can see the usage of PerRequestUnitOfWorkScope in the WebForms lifecycle.

In the Aptitude Test example the WebForms application has the business logic and UOW execution inside the code behind. Is this the best practice?

What if there were say 3 class libaries:

1. WebForms/MVC App (MyApp.Web)
2. Lighspeed Model and custom models (MyApp.Domain)
3. Business logic and custom repository implementations (MyApp.Business)

Class library 3 would need to be instantiating Lightspeed Contexts. How would you go about removing that dependency whilst still retaining the use of a strongly typed UnitOfWork. Perhaps I am not understanding how the LightspeedContext works. Ie you would not want to be doing this in Class library 3 (Business logic):

_context = new LightSpeedContext<ModelUnitOfWork>("Development");

using (var uow = _context.CreateUnitOfWork())
{

}

Hope I am making some sense :)

Cheers, Jeremy

see post http://www.mindscapehq.com/forums/thread/271936

May give you some ideas.

Regards,

Jeff