In his excellent book The Invisible Computer, Donald Norman explains the computer changing from something you might have one of at home (a multi-purpose PC) to an unseen component in special-purpose devices from washing machines and refrigerators to portable telephones and music players. The same thing is happening with graphics software, and this article considers one specific example. Along the way, I also explain how to produce cat macros.

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Last week Stephane Epardaud and Nicolas Leroux, senior software developers at Lunatech Research, presented “Nouvelles technologies de développement en JEE” at the Forum des Professions Informatique 2008 in Nice.

The conference was organised by the University of Nice and it was rather pleasant to discuss with the students and other I.T. professionals. Thanks again for the invitations.

This is also the start of a new Open Source project that will be used as a show case for new technologies (JBoss Seam, JPA, EJB 3, Hibernate Search, etc…). The project is available here. We will try to write some nice tutorials and articles about it. More to come on this web, so keep posted.

In the meantime, you can download the presentation slides in French (PDF, 0.5 Mb).

You can send your comments nicolas+fip@lunatech.com.

Please send comments on this article to editorial@lunatech.com.

We would like to invite you to our fourth Benelux JBoss User Group meeting: an afternoon of free technical sessions presented by JBoss developers.

The JBoss User Group is growing and even our last location is now too small, so once again we arranged something special: we will meet in the Staal Zaal in Rotterdam. i-Portal Rotterdam has kindly agreed to sponsor the event by providing us with a sumptuous room.

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Abstract

This article talks about the process of validation in Java EE, more specifically about Hibernate Validation and Bean Validation. We start by describing why we need validation, what solutions are available, how we use them and why they are great. We then proceed to describe their limitations, and offer proposals for resolving those limitations in the hope that the future Bean Validation standard will incorporate our (or similar) solutions.

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