May 2009 - Derik Whittaker

Derik Whittaker

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NHibernate & SetProjections/SetProjections w/ List Gotcha

Today I was needing to create a query which looked a bit like this: SELECT max(this_.SEQUENCE) as y0_, this_.ADMISSION_ID as y1_ FROM PT_Status this_ GROUP BY this_.ADMISSION_ID As you can see, I was trying to do a group by one column and a Max() on another...

Published 05-27-2009 10:21 AM by Derik Whittaker

Filed under: NHibernate, HowTo
Follow up to the Poll on Structured or Free-Form Code Camp Session

The other day I posted the question on whether you would rather attend a structured and scripted session at a code camp, or a more free-form one. When I posted this I also posted a link to a short (1 question) poll to try to get everyone’s thoughts...

Published 05-27-2009 5:28 AM by Derik Whittaker

Filed under: Feedback
Quick Poll: Would you better enjoy a structured or unstructured session at a code camp

All, I was thinking of doing a free-form session on Mocking with Rhino-Mocks for the upcoming Chicago Code Camp (sign up here ). When I say free form, I basically mean I would come prepared with a deck and code examples, but would open it up to the group...

Published 05-25-2009 8:14 PM by Derik Whittaker

Filed under: Feedback
IoC/DI should be about creating Loosely coupled code, not testable code

The other day I was watching a video about IoC/DI from Google and about 47 seconds into the video I got a bit upset. Why did I get a bit upset? Because off the bat he talks about IoC/DI as being a concept to simplify testing and creating testable...

Published 05-22-2009 6:24 AM by Derik Whittaker

Filed under: Development, Craftsmanship
To CI or not to CI, did not realize it was still even a question?

Over the past few weeks I have been presenting at a few .Net user groups and one of the questions I asked prior to each session was the number of people who have some sort of CI/build server for their team. Now keep in mind I qualified this question...

Published 05-19-2009 3:22 PM by Derik Whittaker

Filed under: Development Tools, Agile, Best Practice, Rant
You know you buy into Testing and Testabilty when you wrap a singleton simply to create an abstraction…

I am a little bored so I thought I would write a nice fluent interface around the Performance Counter crap that is part of .net. I know, I know the world does not really need another Fluent Interface around something, but I am bored and this is...

Published 05-15-2009 5:27 PM by Derik Whittaker

Filed under: TDD, Opinion
Odd issues with Nant and <include buildfile/> and lack of (or addition of) xmlns in your files

After a decent amount of effort on our project we have finally setup a standard build script for all of our projects, which is a great thing. But when I was converting on of my projects over to the new format I ran into some odd behavior and it...

Published 05-14-2009 1:36 PM by Derik Whittaker

Filed under: Development, HowTo
Pay attention to the difference between Expression.Lt & Expression.LtProperty

Pop quiz, what is the difference between Expression.Lt (.Gt, .Eq, etc) and Expression.LtProperty (.GtProperty, .EqProperty, etc)? If you know the answer off the top of your head you win the prize… What is the prize you may ask? NOTHING…. Anyway, I needed...

Published 05-06-2009 8:33 PM by Derik Whittaker

Filed under: NHibernate, HowTo
Debugging NHibernate Exceptions

When developing your data access layer with NHibernate you are bound to run into some pretty nasty exceptions. Many times the exceptions may be nasty, but at least they explain the problem in enough detail to allow you to solve the problem. But what do...

Published 05-05-2009 4:14 AM by Derik Whittaker

Filed under: NHibernate, HowTo

May 2009 - Derik Whittaker

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NHibernate & SetProjections/SetProjections w/ List Gotcha

Follow up to the Poll on Structured or Free-Form Code Camp Session

Quick Poll: Would you better enjoy a structured or unstructured session at a code camp

IoC/DI should be about creating Loosely coupled code, not testable code

To CI or not to CI, did not realize it was still even a question?

You know you buy into Testing and Testabilty when you wrap a singleton simply to create an abstraction…

Odd issues with Nant and <include buildfile/> and lack of (or addition of) xmlns in your files

Pay attention to the difference between Expression.Lt & Expression.LtProperty

Debugging NHibernate Exceptions