Andre, In reference to your question:
> On ActionRequest i start a thread that calculates something. While the > Thread is calculating i want to show a page that says "Hey, wait a minute, > i'm busy!" When the thread has finished calculations it calls a callback > function and I want to present the results. > How can i force a refresh of views without having user interaction? > Is this possible at all? If your Runnable implements Serializable, you can put it in the user's session with PortletSession.APPLICATION_SCOPE... this will make it available to servlets as well. You can then use ajax polling or something similar to query a servlet and check if the process is complete, and then update the portlet's view with the result. HTH, Ben
