I’m the author of the Open Source component library, Metawidget (http://metawidget.org). Recently a few of our users have expressed an interest in migrating Metawidget from Vaadin 6 to Vaadin 7.
However, our ‘real world’ tests fail with the message:
“Widgetset does not contain implementation for org.metawidget.vaadin.ui.VaadinMetawidget. Check its component connector’s @Connect mapping, widgetsets GWT module description file and re-compile your widgetset. In case you have downloaded a vaadin add-on package, you might want to refer to add-on instructions.”
Metawidget is a purely client-side widget. We never needed a ‘widgetset’ for the Vaadin 6 version (perhaps we should have done? But Vaadin didn’t complain). Could you please help with creating a ‘widgetset’ to suit Vaadin 7? I have read over the docs but they talk about configuring an additional compilation step? As we never needed such a step for Vaadin 6 this all seems very alien to me
I spent some time whenever possible, but eclipse was in the mood to play games with me, so I wasted a lot of time there. Got the project checked out and running now, so I can have a look at it.
It seems to me, that you create the additional UI on the server side through server side composition. Is this correct? In that case, indeed a widgetset would not be needed.
That is correct. Everything is done using server side composition and so no widgetset is needed. Vaadin 6 seemed to use DefaultWidgetSet implicitly, and never complained. It ‘just worked’.
How can I set up Vaadin 7 to have this same behaviour?
Ok. Then this looks like a bug to me. Please create a ticket for it. Someone more knowledgeable than mee about the internals of Vaadin needs to look at this.
Sorry for giving you the wrong information. I was discussing this with a colleague of mine, and he was also sure it should work as you have implemented it.
So looks like you need to create a Connector class and add a @Connect annotation, as described in the migration guide (link is above)
No need to apologise! I appreciate all your help in trying to resolve this.
I’m having a hard time understanding the Migration Guide. I’m fine to “create a connector class for the add-on” and “Extend LegacyConnector, override the getWidget() method”. But then I come unstuck because in Vaadin 6 I never used @ClientWidget or super.updateFromUIDL or did anything with a ‘V’ component (such as VMyWidget or VLabel).
Could you please explain how the Migration Guide steps relate to my situation?
