Nicolas Fränkel

With a provocation this big, I hope I’ve caught your attention. So, let’s draw some lines: the objective is, of course, not to let others do you work. It is to share work once between the client, the business analyst and the person that will run the acceptance test. From my point of view, all these persons do the same work: the client wants features. As such, he will test those features when the product will be deliveredthe business analyst will describe those features in details.

In this article, I will show you how to use the new Bean Validation Framework aka JSR-303. The legacy Before getting the result that is JSR 303, aka the Bean Validation framework, there were two interesting attempts at validation framework. Each came from an end of the layers and focused on its scope. Front-end validation Struts was the framework to learn and use on the presentation layer in 2001-2002. Struts uses the MVC model and focus on Controllers, which are represented in Struts with

In the previous article, I set up a cluster of 2 Tomcat instances in order to achieve load-balacing. It also offered failover capability. However, when using this feature, the user session was lost when changing node. In this article, I will show you how this side-effect can be avoided. Reminder: the HTTP protocol is inherently disconnected (as opposed to FTP which is connected). In HTTP, the client sends a request to a server, it gets its response and that’s the end. The server cannot na

This week, I searched for free online SVN repositories for closed-source projects. Of course, there are plenty of sites offering services for OpenSource projects: Google Code, SourceForge, etc. It may seem amazing, but everybody does not necessarily want to expose its code to the world. From what I’ve found, there aren’t so many free SVN repositories around.

Today, I will not take the role of the architect that knows how to deliver applications but instead I will play the end-user part. In a previous post, I was tasked to put a whole development infrastructure in place. A continuous integration server was indeed in order. I took a look at some, but I was really dumbfounded when I tried Hudson. Features are not what stroke me at that time (although Hudson’s features did serve me well) but only the ease of installation. Let’s look at a

My work is IT architecture, meaning I focus on the early steps of a project. Once the application is in production, I usually leave it to systems and production engineers. For example, for JVM fine tuning, most of the clients I worked for have people that have the right skills to do that. Nevertheless, I need sometimes to sully my nails. This happens in two cases: when the client is too small to have such dedicated teams or when its production team are not experienced enough to handle the probl