Vaadin 6.7.9 / 7 Alpha 2

Vaadin's main advantage over other GUI toolkits it's its great element design and graphics.

Vaadin supports Java Servlet API 2.3 and later versions and should work with any Java application server that conforms to the standard.

Here are some key features of "Vaadin":

Sophisticated Component Framework:
· Server-driven UI components in Java
· Dozens of built-in UI components
· Dynamic Java layouts
· Template based HTML layouts
· Event-listener model
· MVC data binding
· Input Validation Framework
· Browser widget peers built with Java using GWT

Customizable Look and Feel:
· CSS class based component styling
· Custom application theme support
· Add-on browser features using GWT

Automatic Browser-Server Communication:
· Single-page web applications
· Automatic component update tracking
· Partial page updates
· Client-side DOM subtree caching

Web Compatibility:
· Runs without browser plugins
· Back button support
· Deep linking support
· URL parameter handling

Web Application Integration:
· Java EE compatible architecture
· Java Servlet API 2.3 Compatible
· Run as portlet in a JSR-168 compatible portal
· Embed to a HTML or JSP page


Optimized Web Application Development:
· Java-only programming
· No JavaScript programming
· No XML configurations
· Packaged as a single Jar-file

Application Security:
· Server-side application state management
· Application logic executed in server
· Double-cookie submission pattern
· Duplicate event filtering
· Filtering on invalid requests and events

Integrated Development Environments (IDEs):
· Single Jar-file deployment
· Eclipse integration plugin available
· Compatible with Firebug debugger
· Standard web application (WAR) structure

Supported Application Servers and Java EE Portals:
· Apache Tomcat, version 4.1 or later
· BEA WebLogic Server, version 9.2 or later
· IBM WebSphere Application Server, version 6.1 or later
· JBoss Application Server, version 3.2.8 or later
· Jetty, version 5 or later
· Glassfish, version 2 or later
· Liferay Portal 4.3 or later

Supported Web Browsers:
· Mozilla Firefox 3
· Internet Explorer releases 6, 7, and 8
· Safari 3, 4 and 5
· Opera 10
· Google Chrome 5
· Safari 2
· Firefox 2
· Older versions of Google Chrome
· iPhone (firmware 2.2)
· Midori (0.1.2)
· Epiphany (2.22.3), Galeon, and other Gecko-based browsers. Also WebKit-based Epiphany (2.22.3) works.
· Konqueror 4.2 (3.5.x does not work)
· Nokia Internet Tablet N800 and N810 (ITOS 2008, Opera-based browser).

· Supported Operating Systems (Vaadin is based on Java and it should be compatible with most operating system supporting Java 5.
Tested distribution packages are available for the following operating systems):
· Windows
· Linux
· Mac OS X
· Other UNIX operating systems, such as Sun Solaris, using the installation package for Linux.

Limitations:

· Uncompressing the installation package fails in Windows if using the default Zip uncompression.

What's New in This Release: [ read full changelog ]

· Tabsheet content not correctly rendered
· UserError should not prevent the use of the CONTENT_XHTML mode
· ComboBox breaks GridLayout when browser zoom is not 100%
· Out of Sync error when using Generated Columns and reverse order on large dataset
· Drop handler with custom AcceptCriterion breaks UI
· TabSheet replaceComponent does not transmit closable attribute
· Updating the Table container makes the first half-visible row flicker