Hi, I have a long-running job that runs in another thread. To this job you can pass listeners to get notifications of various events such as when the job has ended and various other status events. I'd like to have a Wicket page with a label that updates when the status of the job changes and a WebMarkupContainer should be set to visible when the job has finished. My first approach was to just try to update the components directly from the listener but that doesn't work since you cannot update a Wicket component from another thread. My next approach was then to create a level of indirection by creating a mutable Wicket model object that can be shared between the two threads. Having added a AjaxSelfUpdatingTimerBehavior to the label the text was updated correctly with the status changes when the state of the shared model object was updated. But setting the visibility of the WebMarkupContainer cannot be done in this way since you explicitly need to call setVisible on the instance. So the question is, how should I go about?
One approach that I'm thinking of is to add some sort of ajax call-back method mechanism to the web page that checks a "visbility" state in the shared model on a frequent time-interval. If the state has changed then perform whatever logic needed. But how do I make Wicket invoke such a call-back method every X second? Is this a reasonable approach to solving these kind of problems? /Johan -- View this message in context: http://www.nabble.com/Changing-model-state-from-another-thread-tp21584253p21584253.html Sent from the Wicket - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
