DB Value changed - can I push it to the GUI?

Vaadin 6 / 7 / 8 Framework UI
1

Hi

I have an Vaadin app.

I would like to know if I can catch a “database-value has changed event”?

Imagine I have a value from the DB presented in a TextField. User “A” watches this value in his browser.
Some other user changes the value in the database.
I would like the new value to get pushed to user “A”.

Can it be done or is it way off? :slight_smile:

Thanks for a fantastic framework :slight_smile:

2

You should check out Artur’s brand new
ICEPush wrapper add-on
.

3

Thanks

Tried it out - with no luck

I am quite new to Vaadin. So I apologize if my questions are stupid :slight_smile:
But do I need to recompile anything to make it work?
And how do I do that ?

Thanks in advance :slight_smile:

4

"Widgetset does not contain implementation for org.vaadin.artur.icepush.ICEPush. Check its @ClientWidget mapping, widgetsets GWT module descrioption file and re-compile your widgetset. Unrendered UIDL:

org.vaadin.artur.icepush.ICEPush(NO CLIENT IMPLEMENTATION FOUND) id=PID17 pushUrl=/abc pushGroup=ICEPush-1

"

5

You need to recompile your widgetset (creating one if you didn’t already have your own) as this add-on contains client-side code.

See
the instructions
 for using add-ons (links for Eclipse, NetBeans and Maven users).

6

Thanks :slight_smile:

7

Hi

I wonder if it would be possible to see the source code from the icepush calendar example?

8

Now available at http://dev.vaadin.com/svn/incubator/MultiUserCalendar/