Tag: Java

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Development

JavaZone 2009 over

So the big event for Java geeks in Oslo, JavaZone, is over. I had a blast as always, and a little less people. Moving the overflow area helped a lot. The less people was a conscious choice I’ve been told, and I wouldn’t really mind even fewer. But hey, I guess there’s some economics that has to work too.

My company, Capgemini was present as usual, and the bright girls and guys did an excellent job of tweeting and blogging from the conference. If you know norwegian check out our twitter stream and the technology blog.

We also had two full feature talks, and I was really satisfied with how they went. Always something to change, but over all very satisfied. The topics were (sorry only Norwegian slides):

  • Smidig Utrulling (Agile deployment) – Slides
  • Rules engine vs. Domain logic – Slides

For the Smidig Utrulling talk I spent a lot of time creating code and examples. They contain some simplified Maven setup and a Java program to do deployment from the Maven repo. Check it out at http://github.com/anderssv/agile-deploy/tree/master . Documentation is scarce as always, but let me know if I can make something better. And feel free to use.

The videos will be available later, but if you want to see the ones that are available (of others, some english speakers) you can check them out at http://tcs.java.no . Tandberg delivered the video equipment and it seems like they are doing a hell of a job for the community. Check out the videos, there’s a lot of good talks there.

Now for some vacation, see you. 🙂

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Development

Java migrations tools

Wow, it’s been a while. If you’re interested in good links follow me on Twitter: http://twitter.com/anderssv . I usually update there these days.

My talk on “Agile deployment” got accepted for JavaZone this year! I’m extremely happy, but a bit scared too. 🙂 I’ll be talking about rolling out changes in a controlled manner, and one of the things that are usually neglected in this scenario is the database side. I’ll cover stuff like packaging and deploy of the application too, but that’s probably the area where I know the least. The database side of things are really sort of my expertise.

I have written some blog posts on this already, and in relation to the talk and things at work I did a quick search for Java migration tools. DBDeploy I have used earlier, but there are now a couple of other contenders. Here’s my list so far of tools that work on sql deltas that can be checked into SCM:

  • DBDeploy – Tried, few features but works well. Ant based.
  • DbMaintain – Probably has the most features. Ant based.
  • c5-db-migration – Interesting alternative, similar to DBDeploy. Maven based.
  • scala-migrations – Based on the Ruby on Rails migrations. Interesting take.
  • migrate4j – Similar to Scala Migrations, but implemented in Java.
  • Bering – Similar to Scala Migrations, and looks a lot like Migrate4J

I’ll definitely be looking into DbMaintain and c5-db-migration soon. DbMaintain looks promising, or I migh just contribute to DBDeploy some features. I’ll let you know how it went. 🙂

(updated with scala-migrations, bering and migrate4j after first post)

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Development

Agile deployment talk retro

On wednesday I did a talk at the Norwegian Java User Group about agile deployment. The slides (in norwegian) are available here as well as embedded on the bottom of this post.

From the comments and questions I got afterwards, I could see how I should have included more detail. That would have made it even more interesting for that kind of crowd. I probably also should have clearified that I had limited time to prepare and that this was just a slightly extended version of a lightning talk I held at XP Meetup last year. I hope to get the chance to correct this in a JavaZone talk with more details. If you did see the talk and have comments please do leave them at the bottom of the page. 🙂

Many of the questions I got revolved around the handling of the database, so I just thought I should give some pointers here to articles that better describes what I have been up to:

Check them out if you’re curious.

Smidig Utrulling

View more presentations from Anders Sveen.