Jeremy D. Miller -- The Shade Tree Developer

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NDC 2009 Wrapup

I’m on my way back from the Norwegian Developer’s Conference in Oslo this past week.  I had a fantastic time meeting some new people, hanging out with friends, interacting with a couple heroes, and seeing a little bit of Norway.  Special thanks to Anders Norås for inviting me to NDC.  I had a blast with the Bergen gang:  Mark Nijhof, John St Clair, and Jon Arild Tørresdal.  I got to put a face to Andreas Öhlund who is developing the StructureMap integration with WCF and nServiceBus. 

I think all the talks were recorded and are going to be posted to the NDC website for download.  I’ll blog the links as soon as they go up.  I gave 8 talks in 4 days across 2 cities.  I’m not sure I want to be one of those professional speakers that do that a couple dozen times a year.  I had an awesome crowd for my “Design and Testability” talk that I appreciated.  I had a comparatively small crowd for my “Conventions over Configuration” talk, but I had a lot of good questions afterwards that probably made that my favorite session of the week.  Most importantly, I presented some preliminary design patterns work on the “Screen Activation Lifecycle” from my book and I thought it went over pretty well (you can see a little preview of it on Ward Bell’s blog here). 

I got even more book ideas from Jonas Follesø’s talk.  <bias>Apparently there are some crazy people out there who think it’s not entirely insane to do “View First” navigation.  I need to cover that pattern in the book and pretend it’s not a nutso thing to do.</bias> 

Lastly, I gave my “Lessons Learned from StructureMap” talk one more time.  I think I’m going to retire this one permanently, so I might try to blog it out over the next 2 months. 

Upon reflection, I think my favorite thing about NDC was that there was a lot of more or less ALT.NET-ish content (and the older speakers from the bigger software world that we admire), but we weren’t in special camps or the “Agile gutter” track like in the DevTeach’s I went to a couple years ago.  I love that the tee shirts for the conference said “Legalize Unit Testing.”  I don’t ever see ALT.NET becoming completely the mainstream, but it’d be nice to stop being this strangely alternative stuff on the fringe.

I got ambushed by Hanselman and recorded for Channel 9 spouting off on 3 hours sleep about “Executable Requirements”, StoryTeller, apologizing for using angle brackets, and explaining why I’m not using Oslo/MGrammar for creating external DSL’s for testing (hint:  I’m very unenthusiastic about the phrase “you just have to parse the AST”).  There’s several other impromptu recordings from the speaker’s area here.

All in all, I had a great time and I’d be happy to recommend NDC next year for those of you in that part of the world.


Posted Wed, Jun 24 2009 8:58 AM by Jeremy D. Miller

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Comments

Jon Arild Tørresdal wrote re: NDC 2009 Wrapup
on Wed, Jun 24 2009 1:08 PM

Was great meeting you in person. Hope to see you back at NDC next year. Also looking forward to see some more codebits for StoryTeller. ST has great potential and looking forward to try it out at work.

Mark Nijhof wrote re: NDC 2009 Wrapup
on Wed, Jun 24 2009 2:41 PM

It was good to see you as well, looking forward to the next time.

Haacked wrote re: NDC 2009 Wrapup
on Fri, Jun 26 2009 12:19 AM

Good times. I have some pics I need to send you when I get a free moment. :)

Henning Anderssen wrote re: NDC 2009 Wrapup
on Mon, Jun 29 2009 10:35 AM

It was great seeing you at NDC. What you talked about and most of what you write about is something that really interests me and I learned alot. You inspired me in so many ways :D. Thank you!

I do have one question though, I think in regards to your Long lived codebase talk. I think you mentioned that the typical "Manager" classes usually ends up being a dump for code that doesnt fit anywhere.

On my current project  I'm in a similar predicament where I'm mostly struggling to name my business classes, but also whether or not to put some piece of code in that class.

Now, lets say that I have a entity class called Customer, which primarily holds data. I want to save that customer through a business class, which is now also called Customer. This is, mostly, ambiguous and is hard to understand from code what the class does. I haven't managed to find a good name for this class, but I'm leaning towards CustomerService. However, CustomerService in my mind implies that this Class has to do with services, namely webservices and wcf, and I'm not comfortable with this. A few other alternative suffixes is Factory, Coordinator and Manager.

Factory is also quite bad, as it implies that it creates instances of other classes. Coordinator and Manager I feel will end up being a dump of all Customer related methods, while it doesn't quite tell me what it really does.

Do you have any comments/ideas/suggestions to my problem? Is a simple naming convention all it takes, or should I split up the classes somehow? If it has any bearing on your answer, I'm doing semi/quasi DDD. It's my first project where I'm trying to implement DDD.

Jeremy D. Miller wrote re: NDC 2009 Wrapup
on Tue, Jun 30 2009 9:16 AM

@Henning,

Offhand I'd say you could make strictly the data access piece of Customer be the "CustomerRepository."  If you need it, you could have a "domain service" called CustomerService if some logic or operation just doesn't fit into the Customer Entity.

As far as splitting up the classes, yeah, following the Single Responsibility Principle is pretty well the first step to a good design.

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