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I'm Ryan Lowe, a Software Engineering graduate living in Ottawa, Canada. I like agile software development and Ruby on Rails.
I write this blog in Canadian English and don't use a spell checker. Typos happen.
» Full-time Ruby on Rails freelancer
» Full-time with Rails since May 2005
» Former committer for RadRails (now Aptana)
» I also have a few Rails side-projects in development:
1. wheretogoinTO.com Toronto nightlife
2. Hey Heads Up! TODO list and sharing
3. Layered Genealogy family history research
4. foos for foosball scoring
5. fanconcert for music fans (on hold)
Hiring Rails developers? I can telecommute by the hour from Ottawa, Canada
»» Email: rails AT ryanlowe DOT ca
Now hosted on Hey! Heads Up -- check it out!
Derek Lowe's (Ryan's older brother) words at Ryan's funeral
email@example.com no more
Forging Email Headers: Good, Bad or Ugly?
Sarcastic Dictionary (Part 1 of Many)
Twisting Rails is Risky Business
Risky Business? My Take on Early Alphas
Whoa, it's August 2007
A Postscript to "Growth at the grassroots"
»» All Blog Posts
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Signal vs. Noise
Amy Hoy: (24)slash7
Luis de la Rosa
Data Abstraction Layer Architecture
I took my hands off Eclipse for a bit and thought about AudioMan's architecture, specifically the Data Abstraction Layer (DAL) and wrote up a whole section on it. I grouped the methods of the DAL package into classes so that they are easier to manage/isolate, instead of having one large singleton class. I definitely welcome your comments.
The key to the new Data Abstraction Layer is the notion of models and mutators. A model is a bunch of data that the user interface displays in views and mutators are functions that change the models.
AudioMan is a bit more complex because the mutators don't actually change the models directly, they change the repository and the files. When the repository changes the models are updated indirectly. As well the files can be modified outside of AudioMan so when the models are refreshed the files have to be checked. Add formatting to that and you have my brain turning to mush until I forced myself to write it all down. Now it looks pretty manageable.Posted at January 28, 2004 at 07:35 AM EST
Last updated January 28, 2004 at 07:35 AM EST