Facing new challenges everyday

Yesterday I downloaded xubuntu 7.10, now I’ll evaluate xubuntu to take an idea about how good is this flavor of ubuntu distro, I would like read some opinions about this distro.

My first try to use xubuntu on my Compaq R3000US was completely unsuccessful, my computer freezes when xorg starts, maybe because I have a Sansung SyncMaster 931BW attached on my external RGB video output.

If you know something about xubuntu 7.10 and how to use in dual display mode, please leave a comment.

After some years away from mobile world I finally back with mobile development, I’ve been working on a application that solves some server management tasks like start/stop services, this application consists of two parts, a webservice written in Groovy and the J2ME client. The J2ME client can call webservice methods that will execute these management tasks, like a remote control.
(more…)

Linq seems to be a really cool MS solution, but doesn’t works with relational databases other than SQL Server or Access, the reason is simple, unfurtanelly MySQL, Oracle and Postgres doesn’t have Linq providers, this is really sad.

After some google search I found a project called DB Linq that contains Linq providers for Oracle, Postgres and MySQL, nothing perfect like MS Linq providers for SQL Server or Access, but can solve the problem for a short period of time.

You can find the binaries here:

http://code2code.net/DB_Linq/index.html

If these providers doesn’t works as expected I strongly suggest NHibernate as Object-Relational solution. You can find NHibernate at:

http://www.hibernate.org/343.html

This error always happens when you do several application redeployments in Tomcat, you have several reasons for this error and some potential solutions, here’s a list of urls that contains possible solutions for this error:

http://www.javamart.ca/blog/?p=91

http://opensource.atlassian.com/confluence/spring/pages/viewpage.action?pageId=2669

Yesterday I started a project task here where I need implement a kind of expression language, after some web search I finally found the Apache Common Jexl library that aims to provide an expression language that can be embedd into your applications, my first piece of code using this library is something like we have below:

(more…)