Decoupling into DAL and BLL - my concerns.

Posted by novice_man on Stack Overflow See other posts from Stack Overflow or by novice_man
Published on 2010-06-08T11:37:24Z Indexed on 2010/06/08 11:42 UTC
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c#

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architecture

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dal

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bll

Hi,

In many posts concerning this topic I come across very simple examples that do not answer my question.

Let's say a have a document table and user table. In DAL written in ADO.NET i have a method to retries all documents for some criteria. Now I the UI I have a case where I need to show this list along with the names of the creator.

Up to know I have it done with one method in DAL containig JOIN statement. However eveytime I have such a complex method i have to do custom mapping to some object that doesn't mark 1:1 to DB.

Should it be put into another layer ? If so then I will have to resing from join query for iteration through results and querying each document author. . . which doen't make sense... (performance)

what is the best approach for such scenarios ?

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