Occasional Thoughts

I'm glad to be able to depricate my own post Groovy++-with-Maven a couple of weeks ago. The Groovy++ team has already taken action and provides the groovvypp libraries in a commonly accessible repository. They also provide a preliminary version of the gmaven plugin that supports statically linked Groovy.

For details see Using-groovypp-with-maven  and also the related update Using-groovypp-with-maven (update).

Please see my update Official-Maven-support-for-Groovypp.

If you are already a fan of Groovy you probably will also be a fan of the rising star Groovy++. Even people that dislike the dynamic magic of Groovy must agree, that this is cool stuff, mixing the power of Groovy with the safety and performance of classical Java. Since Groovy++ is still brand new it lacks of any Maven support today. In the following I will show how you can tweak the GMaven plugin for using the Groovy++ extensions.

Please be aware that this is just a very quick work to get it running and might not be stable. For example I did not verify all the necessary dependencies. So further work has to be done.

Migrating an existing Java project for use with Hibernate is a difficult process. And yet I'm not sure if it is worth the work at all.

Some years ago I started a Java project with direct database access using JDBC and SQL. I designed my object model and a relational database schema. Both were optimized independenlty to work optimal in their environment. In order to connect the object world with the relational world, I wrote a clean storage layer, which was responsible for communicating with the database. This worked pretty good. But when Hibernate was becoming more and more popular, I started thinking about migrating to a Hibernate based object mapping.

After a long painful time I finally got my Logitech Quickcam Pro 5000 running for streaming on my Ubuntu Intrepid server. As streaming software I used Motion, an intelligent streaming server that is able to detect motion and only stores images if something happens that is worth imaging.

I myself had a hard time to get it running. I first tried to run it on SuSE Linux 10. But failed because of a series of problems. Then I tried running it on Ubuntu Linux 8.10. Ubuntu has a precompiled package for Motion. The tool is V4L2 aware and is known to work with the uvc-video driver, which is needed for the Quickcam.