For many years I am using XSLT now for a lot of tasks in both, development and runtime environments: Source generation, creating HTML from XML data, or even rendering SVG vector graphics from XML finance data. But what really bothered me was that the XSLT transformer contained in Java (even in Java 6's latest release) was just able to do XSLT 1.0 but not XSLT 2.0. XSLT (and XPath) 2.0 comes with...
on Feb 6, 2010
Happy New Year folks!
In 2002, I wrote a highly specialized, very small Q&D tool for my brother to support him in his oncological doctoral's practice. They are three physicians sharing a common room with some unique ultrasonic device. They needed something showing them at their desk wether the room is available or is currently occupied by somebody else. The name 'dokma' is a German pun....
on Jan 1, 2010
As I noted last week, the java.net Java Tools Community is attending and tweeting from the Campus Party Brasil event this week. Now, in my post last week, I pretended the event was just going to be a fun-filled affair. Now that the tweeting has begun, I decided to check in on the feed. Here's a sampling of the Java Tools tweets from Campus Party Day One (in time forward order):
You can watch...
on Jan 26, 2010
I've finally managed to produce the Windows installer for Hudson, as originally raised by Håkan Reis. Please try it out and let me know how it works.
This one took much longer than the installer for any other platforms, and while I normally think of Microsoft technologies very highly, Windows installers and WiX are a real disappointment. For example, you write the description of the...
on Jan 26, 2010
Given that Maven is much more complex than Ant, and it dinamically resolves dependencies, people are right to be concerned with having deterministic builds. But the vast majority of problems are solved by just three good practices:
version everything, including all Maven plugins
run once in a while mvn dependency:go-offline, that will download all the required stuff
routinely use mvn -o (offline...
on Jan 7, 2010
I authored a new refcard covering GlassFish v3, This refcard is different from my previous one which covers GlassFish v2. This new refcard discuss the following items:
Introduction to GlassFish application server v3.
GlassFish v3 versions, installation and directory structure.
Glassfish v3 daily administration tasks.
Glassfish v3 Restful interface for monitoring and administration.
on Nov 22, 2009
This is a very basic review of active and available open source Java EE Application servers and Servlet container (Web containers) to let the community know which active containers are available and what is the general status of each container. The article can simply act as a start point for anyone need to select one of them for later use in development or product. Detailed comparison of these...
on Nov 17, 2009
In the past weekend I've been able to improve the settings for
automated Maven releases that I've
blogged about about ten days ago. Peter Mount complemented
the information with some practical examples on how to use
that stuff invoking Maven with the proper parameters. I've been able to
significantly clean up and improve the Maven configuration, so now a
staged release can be performed...
on Nov 9, 2009
With the newcomer Vaadin module I
updated the Arena Project
script to support builds on Windows platform. Not a big deal in terms of
configuration but it is worthy a notification in case you had
tried to build the project before and got frustrated with the Platform
Classifier restricted to the UNIX-family.
Why to use Platform Classifiers? The lack of a
good Maven support for the Glassfish...
on Nov 9, 2009
After the latest upgrade of my Hudson instance, I noticed that a new option in the security matrix appeared: it allows anonymous visitors to have a (read only) look at a job configuration, if the administrator allows it. I think it's a great feature (that I was asking for some months ago), as it allows to share our knowledge about our favourite CI tool.
So I've opened most of my jobs and you can...
on Nov 9, 2009
As a programmer, I spend a lot of time fixing bugs. And a considerable portion of that is the time spent on reproducing a problem. Here is how a typical such session goes. Your user reports that your program doesn't work and throws such and such exception. Or given the symptom he's describing, you suspect some "if" statements to be evaluating to false.
If you are lucky and experienced,...
on Nov 8, 2009
I would like to show you how you could extend your javadoc to include samples directly into the javadoc without extra work.
What I don't like about javadoc is the lack of code sample. Something is can be hard to find the starting point of a new framework.
Let's show a example, it will be easier to understand, and so simple.
[prettify] /** * * This in a javadoc with...
on Nov 8, 2009
I'll be doing a webinar and Q&A sessions on Hudson tomorrow.
One of the problems of doing a presentation for the general audience is that I normally can't spend too much time on the advanced topics. So in this webinar, I'll be talking about several topics that are oriented more toward people who have already evaluated Hudson and/or are already deploying Hudson.
The topics include:...
on Oct 13, 2009
Can you compile, deploy and test your Java EE projects with just
1 line of command? Check it out.
I have no time for documentations lately, but I prefer to give
you a chance to early adopt my build script and take your own
conclusions. Following the steps below, you will have my Java EE 5
application running in your Glassfish v2.1 server - including test data
populated in the MySql database....
on Oct 9, 2009
When you need to produce lots of fairly straightforward graphs, Java2D is your friend. In this blog, I show you how you can render simple images as crisp-looking PDF or EPS files, provided you can draw them on a Graphics2D object.
Recently, I had to draw a bunch of simple images, such as this one
or this PDF
Of course, you can do these drawings in Illustrator or Inkscape. But if you are a coder...
on Oct 8, 2009
When I started the mavenization of my projects, in July, I really didn't
figure out that it would have been such a painful and long process. It
is literally consuming me - also because I'm longing to see the end of
the conversion, so I can resume the development.
The first mavenized projects, BetterBeansBinding,
were reasonably easy, also considering that I had to...
on Sep 25, 2009
Java Web Services and XML
Christmas holidays is one of my favourite moment in the year, I have time to see my relatives, read books, play with my kids and hack a little bit.
I think I don't like the most in the strawman proposal is that the syntax for function type and for lambda literal reuse the same symbol '#'.
It's something that I've observed when teaching C. The C syntax use * when you...
on Dec 27, 2009
We can't live without Javadoc, but even if it useful, it's not complete. One missing thing is UML within the Javadoc.
To add UML to your Javadoc, is quite simple. You need to add Graphviz into your maven build.
First you need to download and install Graphviz. Go there Graphviz
After that you should add the variable GRAPHVIZ_HOME (that point to the installation folder) into your system.
on Dec 26, 2009
The long awaited and the most looked upon version of GlassFish released today. GlassFish v3 fully implements Java EE 6 specification which means EJB 3.1, Servlet 3, JAX-RS, JPA 2, Contexts and Dependency Injection for Java EE, Bean validation, Java EE profiles and so on.
GlassFish is not only the most up to date application server but it also benefits from a very good architecture. GlassFish...
on Dec 17, 2009
NetBeans 6.8 released coordinated with GlassFish v3 today. NetBeans 6.8 can be considered a fine step ahead of NetBeans because Sun is officially supporting the NetBeans RCP platform as a product from now on.
NetBeans 6.8 features are as follow:
Java Enterprise Edition 6 support
Web Projects with JavaServer Faces 2.0 (Facelets)
JavaFX 1.2.1 support
Kenai.com: Connected Developer
on Dec 17, 2009