Whoa time flies! . After 9 months of hard work, LLBLGen Pro v2.0 has been released! LLBLGen Pro V2.0 comes with a new licensing scheme: it's now licensed per seat, instead of per-department. Current customers of v1.0.200x.y can upgrade for EUR 49.- per developer. (Designer using developers need a license...

Several days ago it finally arrived: Applying Domain-Driven Design and Patterns by Jimmy Nilsson ! It's Jimmy's latest book and it's great. Well, 'great' is not really the word, it's more a matter of Must Have , it's that good. It's perhaps a bit strange, to hear from me that a DDD/TDD book, which this...

Several days ago it finally arrived: Applying Domain-Driven Design and Patterns by Jimmy Nilsson ! It's Jimmy's latest book and it's great. Well, 'great' is not really the word, it's more a matter of Must Have , it's that good. It's perhaps a bit strange, to hear from me that a DDD/TDD book, which this...

You'd think that by now everyone would have said everything that you can say about Stored Procedures vs. Dynamic SQL, but apparently Eric Wise and Jeremy Miller disagree with that and have started another iteration of this Never Ending Story TM . As it's Friday and you're probably looking forward to...

Jimmy Nilson says "I see Lazy Load as being something technical, and it is not important for the Domain Model itself." I see Lazy/Eager Load as something very important to the domain problem. When you lazy load you can load data that is not consistent. If you lazy load an Order, first the header, then...

Preface To work with data on a semantic basis, it's often useful to specify general definitions of the elements a given portion of logic will work with. For example, an order system works with, among other elements, Order elements. To be able to define how this logic works, a definition of the concept...

Last week I had the privilege to spend 5 days in Arosa, Switzerland, among a group of people who were way more smarter than I am, for the annual Software Architecture Workshop (SAW). The SAW in Europe is an initiative of Jimmy Nilsson , and uses the Open Spaces methodology to let the participants discuss...

I ran into this today and it was simply too good to pass on: Like most O/R solutions today, ObjectSpaces attempted to support a rich set of mappings and scenarios through custom query generation. Adding support for a new type of inheritance mapping, for example, meant adding code to a query generator...

Recently, Andres Aguiar started a discussion between him and Udi Dahan about change tracking in the upcoming Entity Framework (EDM) from Microsoft. Basicly, Andres described why it was unfortunate that the EDM doesn't have change tracking inside the entity objects itself and gave some examples why that...

Recently I replied to a post on Ayende's blog which I'll quote below: In general lazy loading is more of a burden than a blessing. The reason for this is that it leaks persistent storage access to different tiers via the lazy loadable associations. If you want to prevent your UI developers to utilize...