"Sri" <Sri@discussions.microsoft.com> wrote in message
news:E7247D36-4AB5-42A0-A754-319D04580B14@microsoft.com...
> Hi All
> I am desperately looking for some help in design issues, wondering if you
> could help me!!!
>
> I am desigining an n-tier .NET web application with
> UI--Facade--BusinessLogic--DataAccess---Database layers.using ASP.NEt2,
> C#2,
> SQLServer2000....
>
> I have used Codesmith code generation tool with NetTiers template to
> geenerate DAL and Business Logic Layer components along with Stored
> Procedures. It has basically generated typical DAL components for
> CRUD(Create/Retrieve/Update/Delete) operations and business entity classes
> at
> BLL layer.
>
> Now i am stuck with designing a facade layer to make use of the "Business
> entities and DAL classes" generated. My idea is to implement a common
> access
> interface for UI to interact with BLL/DAL classes(exactly in lines with a
> standard facade factory pattern).I have issues troubling me for over 2
> months
> now, i have searched for a working/real world example of facade
> implementation on NET but no luck...
> Could you please help me....
>
> My project requirement is something like this...
>
> I have got a facade factory that creates facade classes for individual
> entities (for ex:Organisation, employee, customer etc...)and return a
> common
> interface(say IFacade). At this stage i should mention that my application
> has just to achieve simple CRUD implementation with a little master detail
> business logic. Each Facade class (implements common interface that is the
> return type of facadefactory.createfacade(facadetype) method) should call
> business entities/ DALComponents at the generated code layer and return
> data
> transfer objects(OR CRUD result basically!!) that could be either bound to
> UI
> controls or used to populate UI. What all i wanted to know is how best i
> can
> design facade layer so that it returns a common interface that can be used
> to
> implement CRUD methods.
>
> For ex:
> I want to design my facade layer in such a way that the following calls
> return a common interface (IFacade) to call CRUD methods of generated
> code...
> IFacade = FacadeFactory.Createfacade(FacadeType.OrganisationFacade)
> IFacade = FacadeFactory.CreateFacade(FacadeType.CustomerFacade)
> IFacade = FacadeFactory.CrateFacade(FacadeType.EmployeeFacade)
> and something like
> OrganisationDataSource = IFacade.GetAllOrganisations() -- in case of
> Organisation select
> OR IFacade.Create(Organisation) / IFacade.Update(Organisation)
> /IFacade.Delete(Organisation)
>
> CustmoerDataSource = IFacade.GetAllCustomers() -- in case of Custmoers
> OR IFacade.Create(Customer) / IFacade.Update(Customer)
> /IFacade.Delete(Customer)
> so on...
> I really appreciate your response as i am still not very clear in this
> regard...
>
> Thank you very much in advance!!!!
> Sriram