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A Pure Object-oriented Domain Model by a DB Guy, Part 4 : Page 4

This is the fourth in a series of articles by Jimmy Nilsson on a new architecture for enterprise applications in .NET. The new architecture is purely object-oriented, while still focusing on roundtrips and the data access code to get good performance.


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The Application Layer Class
To be honest, the use case I started discussing in the last article is too simple (but that is good for the moment) which is apparent when we come to the Application layer class. All it has to do is interact with the Persistence Access layer. Anyway, in my opinion talking to the Persistence Access layer is extremely interesting in itself so let’s have a look at that now. In Listing 1 you’ll find the FetchCustomers() method.

Public Function FetchCustomers _
(ByVal customerQuery As CustomerQuery) As IList



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