We launched Vaadin 7 Certification almost a year ago to follow the initial Vaadin 7.0 release. The few hundred of you who have taken the exam have given us valuable feedback on the certification. Now, nearly one year later, we're happy to announce new, revised certification questions. To celebrate ...

Last month we ran a survey at vaadin.com to better understand how you learn and find information about Vaadin Framework and tools. Learn Vaadin There are a ton of web resources for people starting to learn Vaadin, but the most important source of information is still Book of Vaadin - also available ...

In addition to providing out-of-the-box social-collaboration, eXo Platform is a user experience platform (UXP). It comes with a full set of social intranet UX-oriented features such as a wiki, forum, calendar, activity stream, community spaces as well as an out-of-the-box CMS and document ...

Apache TomEE is an increasingly popular certified Java EE server that is based on Tomcat and other Apache libraries like OpenJPA and OpenEJB. The fundamental idea behind the project is to customize the widely beloved Tomcat as little as possible, throw in required (Apache) libraries and certify the ...

As a rehearsal for my workshop at GWT.create 2013, I gave an internal presentation/workshop last year about responsive layouts in Vaadin. The workshops at the conference weren’t recorded, but fortunately we record all of our internal presentations and trainings, so you have a chance to see this ...

Originally, the idea of the webinar was to show you how Spring has been used in different Vaadin projects in the past. However, once Josh Long from Pivotal got involved, we ended up creating a first prototype of a completely new integration that will sweep the floor with the conventional ways. This ...

Querydsl provides an API to write database queries in a fluent, compact and typesafe way. To strengthen Vaadin’s focus on the UI layer, a powerful persistence tool could help. What would happen if you tried to combine Querydsl with Vaadin, the de-facto way to write modern client-side web ...

There are numerous ways to visualize your data and Vaadin Charts comes with multiple types of graphs to choose from both for developers looking for a reliable java graph library to integrate to their Vaadin application and for the front-end developers. Despite the multitude of graphs available, it ...

Introduction Event-based callback methods provide a clear and asynchronous way to catch interactions and attach logic to them, executed whenever a suitable event enters the system. This is especially useful in user interface APIs where event callbacks make it straightforward to respond to user ...