Links: EF4 Podcast, N-Tier Anti-Patterns, and some thoughts about DDD

Here are a few more resources I hope you will find useful: Recently I had a conversation about EF4 with Carl and Richard of .Net Rocks, and it went up on their site today.  Have a listen at http://www.dotnetrocks.com/default.aspx?showNum=451.  In addition, I have an article about design/architecture decisions related to n-tier applications in the latest…

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Non-scalar Value Objects aka "Complex Types"

Yesterday there was a post on the ADO.Net Orcas forum asking if it is possible to map two entities to a single row in a single table using the entity framework.  The motivation/scenario behind this request was an entity which had an address as part of its properties plus the fact that there were other entity…

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Persistence Ignorance: OK, I think I get it now.

Let me apologize up front for how long it has taken me to get back to this topic.  What I can say, though, is that in the intervening interval I have devoted real time to studying agile design principles and domain driven design. Initially I thought that some of the requests for *complete* persistence ignorance…

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Where’s the model? Is it the code or something else?

A few weeks ago I had a very interesting email exchange with Jeffrey Palermo in which he raised some important questions about the Entity Framework.  Here’s an excerpt from his original query (used by permission): I’ve been thinking a lot about the model of the problem domain for a piece of software and the question…

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A delay before I write more about persistence ignorance...

I’ve promised to write more about persistence ignorance in the Entity Framework, and while waiting for builds during some late night coding binges for a deadline and various other distractions, I’ve been giving it a lot of thought.  My conclusion, though, is that I’m not ready to treat this topic fairly.  While I think I…

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