Tag Archives: ExtVal
I returned from Vienna yesterday evening. After the CONFESS_2011 conference, I enjoyed the city for two days before heading home. I’ve just unpacked my stuff, so now I have the time to post my slides online at Slideshare. The source … Continue reading
I will be giving an interesting talk this Wednesday at the CONFESS conference in Vienna, Austria. I will be talking about ExtVal and how it can help us to prevent repetitive validation code in Java EE 5 as well as … Continue reading
The resources of the session I did today at J-Fall 2010 are online now!
- You can view the presentation slides at SlideShare.
- The sources of my demo are available as a NetBeans project on my Google code project. (Just checkout trunk/MeetingRooms.)
I think it was a good session this morning. At least the audience was nice. I got some good questions and we had a nice discussion afterwards. I hope everyone enjoyed the session.
I’ll be speaking about MyFaces ExtVal at next week’s J-Fall conference in Nijkerk, The Netherlands. J-Fall is the most important Java conference in The Netherlands, organized by the Dutch Java User Group, NLJUG. As always, the J-Fall program is packed with interesting talks, including some by internationally recognized speakers. The J-Fall is a one-day conference, this year at Wednesday, November 3rd.
Last week, a new version of Apache MyFaces Extenstions Validator (ExtVal) was released. ExtVal is a validation framework that allows us to keep our (JSF) View layer free of any validation code and instead put our validation rules as annotations in the Model layer of our application. These annotations can either be JPA annotations, ExtVal annotations or JSR 303 (Bean Validation) annotations. Even a combination of different types of annotations is possible. JSR 303 support is added to ExtVal since last weeks release.
Today my book, Apache MyFaces 1.2 Web Application Development, is published! Of course this is a big event for me, after working on it for nearly 1.5 years. The book can be ordered from the website of Packt Publishing and will be available trough the major (online) book stores shortly.
For over a year I have been working on a book about the Apache MyFaces project for Packt Publishing. The book is nearing completion and is expected to be released February 2010. The book will be covering the Tomahawk, Trinidad, … Continue reading
In a typical Java EE web application, there’s almost always the problem of where to put the validation. Of course there’s only one place where validation belongs: in the model. So if you’re e.g. using EJB as persistence layer, the EJB Entities is where the validation code belongs. However, from a usability point of view, one never wants to leave all validation out of the UI code. This often leads to duplicate validation code. While not ideal, duplicate validation code is often considered as inevitable.
Yesterday I stumled upon Apache MyFaces Extensions Validator (a.k.a. ExtVal, formerly sev-en), a JSF based solution that looks very promising. I did not have a chance to try it myself yet, but it promises some nice things: