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From Toni Menzel <>
Subject Re: Moving the web UI to Vaadin...
Date Wed, 13 Oct 2010 09:38:58 GMT
Yes, i think for a rapidly developed but maintainable and complete
admin console - like what we need for ace server - Vaadin looks like a
valid option.
I would not concider vaadin for middle or large scale web-wide
deployments though. If Vaadin's radical "all server side - client =
stupid" approach applies to a usecase then its probably the ace server
admin ui.

I am a little concerned why there isn't a well spread OSGi Web Toolkit
yet. Just because this question pops up regularly and i haven't seen
an answer yet. Maybe something pops out while ace server ui is being
implemented with vaadin e.g.

vaadin-osgi looks like a start in the right direction. ;) Just its
hidden in vaadin extensions. Think you would not find it if you not
consider vaadin already ? If its decent, why not take it to a broader
audience ?


On Wed, Oct 13, 2010 at 10:41 AM, Christopher Brind
<> wrote:
> Hi Marcel,
> I've done a fair amount of work with Vaadin and OSGi and am working on a
> project for a customer with such.  It's not 100% perfect, but as long as
> you're not adding a lot of custom components you can build UIs quite rapidly
> and in a modular way.
> I've created an OSGi compatibility layer that lets you create Vaadin
> applications as DS components.  The official download is here:
> ... but my github repository is more up to date:
> Feel free to use it if you want, it's Apache licensed. :)
> Cheers,
> Chris
> On 13 October 2010 09:34, Marcel Offermans <>wrote:
>> Hey all,
>> Some time ago, we started work on a web based UI for ACE based on GWT.
>> Feature wise, GWT is great, providing a nice web UI that supports things
>> like drag and drop. There are two big downsides of GWT though:
>> The first is that the javascript generation is rather slow, making the
>> development cycle when doing UI updates fairly slow.
>> The second is that there is no way to modularize the GWT based UI. You
>> always have to compile it in one go.
>> In my opinion, Vaadin [1], a toolkit built on top of GWT that is released
>> under the Apache Licence Version 2.0, solves both issues nicely. I'm
>> seriously considering moving the whole UI to it. WDYT?
>> Greetings, Marcel
>> [1]

Toni Menzel ||

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