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Mobility

 In front of hundreds of guests from the economy sector, the political sector as well as the Information and Communications sector (ITK) the 'Initiative for Small and Medium Sized Businesses' awarded the Innovation Prize IT 2010 during the NORD/LB forum at the CeBit for the best IT innovations of the year. Micromata came third in the Open Source category with its Java API for KML - JAK. The...
on May 30, 2010

Programming

  Please note: I put forth SQL examples because they can be short and are easy to understand. As other have pointed out it is not advisable to build SQL with Strings, regardless of the technique used. What is StringTemplate? To quote the StringTemplate home page:           “StringTemplate is a java template engine for generating source code...
on May 25, 2010
My previous blog, presenting the Life program, was quite long, still not really complete. I've continued the work, but soon found some interesting surprises. This new blog starts investigating an API bug, then trips into some surprising language behavior, and ends in a proposal for a small change in the JavaFX Script language. A Slider bug I was annoyed to see that the Slider control ignores my...
on May 25, 2010
There is an unwritten tradition that John Conway's Game of Life must be implemented in every programming language and every GUI toolkit. Well, OK I just invented this tradition, but it's a smart introduction and Life is one of the easiest games / cool animations you can program. But it's not too simple that we can't learn a few important things about JavaFX... My goal: a good-looking and feature-...
on May 21, 2010

Web Development Tools

The ongoing HTML5 specification offers many features to promote a "rich" web user experience.  If you've worked wth HTML5, you know that some features are available in some browsers and not available in others.  Here's a handy tool to tell you the HTML5 features that are available in your favorite browser.  All you need to do is fire up a browser and visit: http...
on May 25, 2010

Security

OpenESB project initiated by Sun Microsystems to develop and deliver a high performance, and feature rich implementation of Java Business Integration (JBI) under an open source friendly license. Basic task of JBI implementations is connecting different type of resources and applications together in a standard and none intrusive way. Basic building blocks of an ESB includes the Bus which is a...
on May 24, 2010

GUI

We are opening our embeddable Wiki engine "GWiki", which is written in Java with the Apache License 2.0 to all backend Java developer in the world. If you want to allow your customer to edit rich text fragments in your app, even their I18N files or mulitimedia content in the Wiki-way... try our GWiki - it rocks. Since Gwiki can be extended with macros written in Java...
on May 22, 2010

J2SE

I will write a series of blog to discuss what are the new features introduced in NIO.2 (JSR 203). The NIO.2 implementation is a part of OpenJDK project and we can alreay use it by downloading a copy of OpenJDK binary.  In the first entry I will just go through what are these new I/O features of Java 7, which help developer iron out better applications easier. Talking about File systems support...
on May 20, 2010
A few months ago, I had one of those unpleasant format conversion jobs. I had about 1,000 multiple choice questions in RTF format and needed to import them into Moodle. RTF is, as file formats go, somewhere between the good and the evil. It looks like one should be able to write a parser for it, but that seems like a dreary task. The miracle of open source came through for me, though, in the...
on May 16, 2010

EJB

I decided to write down the answer for some questions which my book's readers email me or ask me via twitter in my weblog so everyone can benefit from the answers. Here is the answer to the first question which involves custom security realms. GlassFish supports 5 types of security realms out of the box which are sd follow: File Realm: Usefull for development and testing purposes. GlassFish...
on May 18, 2010
Java EE Security refcard is available for download. This refcard covers Java EE 6 security and discuss how each application server supports the specs. The refcard covers authentication, authorization, and transport security in Web Application, EJB application and web services by introducing the concept and the related annotations and deployment descriptors which help us realize the concept....
on May 17, 2010

J2EE

CDI (Contexts and Dependency Injection for the Java EE platform) is defined in JSR-299 and enhances support for dependency injection in Java EE 6. The more I use CDI the more I like it...However, I couldn't find a simple example of how to configure your application with CDI by reading configuration attributes from a file. Here is an example of how it can be done: Specifying injection points...
on May 18, 2010

Blogging

I've known about fleXive since JSF Days 2009, when I met its lead engineer, Daniel Lichtenberger. At the time, we were trying to get them into the GlassFish partner program, but due to lack of resources, this didn't pan out. Daniel continued to work on fleXive steadily. This year, at JAX-2010, they had a booth. It's great technology, and I encourage you to check it out. Technorati Tags:...
on May 18, 2010

IDE

JSR-276 is targeted at IDE vendors and the JSF component library vendors who depend on them for exposing their components to developers. The idea of JSR-276 is to let JSF component library vendors provide a far richer set of descriptive data about their components so that JSR-276 compliant tools can expose that data to the users. Examples of such data include: What kinds of components are...
on May 17, 2010

Open Source

Here is the second part of the CAFE fundamentals blog series. This time, I am explaining two important interfaces called Communication and UserProcedure with an example. If this is the first time you are hearing about SailFin CAFE, I recommend reading the CAFE fundamentals article and the blog on writing your first CAFE application. The core of this discussion is an example which shows...
on May 17, 2010

Education

As you know, CongoJUG is involved in education. Once again, we will offer free courses and workshops for Sun Java Certification.   JCertif is a mini-conference that will focus on Java technology professional certifications, with special attention to SCJP (Java Programmer) and SCWCD (Web Component Developer).   JCertif goal : To provide courses and workshop which will help...
on May 16, 2010

Research

When I attended college decades back in the early 1990ies, for students of information technology the future looked bright and safe. The cold war was over, the web was growing fastly, and thanks to the pill's baby bust it was clear that everybody able to program computers would have a safe job for livetime. While I had some experience with modems and fido net before, it actually was in...
on May 16, 2010

Extreme Programming

I have the extreme good fortune to speak at several conferences a year, and I always grow from each one, either by taking in useful content, or by meeting interesting people. This week I made my first trip to Poland, to speak at GeeCON 2010. As usual, I decided to re-invent my JSF presentation and didn't start the effort in earnest until far to late in the process. Though I was happy with the...
on May 15, 2010

Community

The Book in Details: Security was, is, and will be one of the most important aspects of Enterprise Applications and one of the most challenging areas for architects, developers, and administrators. It is mandatory for Java EE application developers to secure their enterprise applications using Glassfish security features. Learn to secure Java EE artifacts (like Servlets and EJB methods),...
on May 13, 2010

JavaOne

 Two talks at JavaOne this year: S313580 - "Swinglabs Dev Update" with Karl and Alex ... I hope guys will do most of the talking :D S314239 - "Building Content Management solutions based on Java Content Repository" together with Greg BTW for those wondering what is happening with the swinglabs.org, server have been recently moved around yet again. It is now in so...
on May 11, 2010