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The Seam Framework - Next generation enterprise Java development

Seam is a powerful open source development platform for building rich Internet applications in Java. Seam integrates technologies such as Asynchronous JavaScript and XML (AJAX), JavaServer Faces (JSF), Java Persistence (JPA), Enterprise Java Beans (EJB 3.0) and Business Process Management (BPM) into a unified full-stack solution, complete with sophisticated tooling.

Seam has been designed from the ground up to eliminate complexity at both architecture and API levels. It enables developers to assemble complex web applications using simple annotated Java classes, a rich set of UI components, and very little XML. Seam's unique support for conversations and declarative state management can introduce a more sophisticated user experience while at the same time eliminating common bugs found in traditional web applications.

Learn more

To find out more about Seam, read this introduction and check out some tutorial code examples. If you're evaluating Seam, please see our answers to frequently asked questions.

If you are a new Seam user, follow this roadmap to get started quickly. If you want to contribute to Seam, register on this website and join the Seam Community. If you are interested in development of Seam, see the list of open issues and tasks by priority.

Seam is licensed under the terms of the LGPL. Full commercial support is available. Eclipse-based tooling for Seam applications is provided by JBoss Tools.

Reinvesting in Java EE

Seam is based on the Java EE platform. That's why reinvestment in Java EE standards is crucial to Seam's future. Many ideas which originated in the Seam ecosystem are being contributed back to the Java EE specification by Red Hat, being refined in the process. The most notable initiative is JSR-299: Java Context and Dependency Injection. This website is home of the reference implementation, Weld. Check out the development page to get involved. The Seam community also has lots of ideas for JSF 2.0 and JSF 2.1, so check out those pages to keep up with the proposals.

Atom News
18. Jan 2010, 16:28 CET, by Pete Muir
Norman Richards has been busy working on a reference card for JSR-299: Contexts and Dependency Injection recently. DZone just published it so go and check it out! Great work Norman :-)
14. Jan 2010, 16:56 CET, by Pete Muir
Happy New Year everyone! I got a cool present in my email today -- the JBoss.org design team have put Seam and Weld t-shirts, mugs and badges into the JBoss Community Shop, and posted wallpapers for Weld. They've also posted the final logo and banner for Weld - you'll  more...
11. Jan 2010, 17:40 CET, by Ilya Shaikovsky
Some time ago I published an article at jroller in order to show how the rich:calendar performance could be improved by using single component instance for all the date inputs on the form. Today I want to use the same workaround to solve another popular problem. Looking  more...
08. Jan 2010, 09:17 CET, by Gavin King
Since the release of Weld and Java EE 6, there's been a heap of activity in the Weld user forum, and especially a lot of questions about problems related to framework development. You can do some kinds of generic programming in CDI just using managed beans, producer methods and  more...
Last Site Updates
(Christian Bauer) 06. Feb 2010, 17:05 CET
(Dan Allen) 05. Feb 2010, 23:10 CET
(Pete Muir) 05. Feb 2010, 18:53 CET
(Pete Muir) 04. Feb 2010, 11:58 CET
(Marek Novotny) 04. Feb 2010, 08:55 CET
(Dan Allen) 02. Feb 2010, 18:07 CET