Wcf - SOA Architecture For .NET With Entity Framework
Apr 1, 2011
I am redesigning a Solution's Architecture to implement SOA.
After doing the design changes I have come up with:
MySolution.Client.MyProject.Web ...... //ASP.NET WebSite
MySolution.Client.MyProject.Proxy .... //Service Proxy C# Library Project *[1]
MySolution.Service ................... //Service.cs for Service.svc is here
MySolution.Service.DataContract ...... //IService.cs for Service.cs is here *[2] [code]....
This project contains IService and Request/Response Classes
All methods in Service.cs takes the Request classes as input and return Response classes as output
Therefore this project is referenced by the 2 Client Projects(Web and Proxy), as it contains the IService and all of the Request/Response classes that will be required to communicate with Service.cs
*[3]MySolution.Model: This project contains the .edmx that is the Data Model of Entity Framework and some custom classes that are used in the project.
PROBLEM: Because I only use Request/Response classes to communicate between service and client, The MySolution.Service.DataContract project is only used by Service.cs and Repository.cs
And due to that all responses that Repository generates i have to map them to the properties of its respective response class (which make both the original returned entity, and the response class almost identical). But i am OKAY with it ...
e.g: GetCustomer() in Repository.cs method is called by Service.cs
GetCustomer() method in repository performs the LINQ query and return a "Customer" object
Service.cs then maps all the properties of "Customer" object to the "CustomerResponse" object
Service.cs then returns the "CustomerResponse" to the caller.
in this case most of the properties will repeat in both classes, if there is solution to this, its good, otherwise, I am fine with it.However, when Repository.cs's method GetCustomers() (Notice its not GetCustomer()) is called, it will return List of Customer object, and mapping this for return purpose would mean a "for loop" that iterates the collection and do the mapping ... this is NOT OKAY ...
is there any better way of doing this, considering I do not want to return "Customer" object without "CustomerResponse" as first of all it violates the SOA architecture, and secondly I don't want my Client Projects to have any reference to the Model or Repository projects.
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