Client.showBusy - Strange Behaviour

asked 2016-05-04 11:35:12 +0800

ansancle
327 ● 9

I use Clients.showBusy in numerous places in my application without any trouble. I am running into a strange issue with the following button callback that tries to invoke it. When I press the load button this callback is called via a javascript function in the zul. I want to showBusy while the search is invoked in the populateZoneMessageChangeHolderByDateRange method. I put the thread.sleep to make the delay long enough to test the showBusy. I have tried it both without passing in a component to showBusy and passing one in. It doesn't make a difference. I do not get the busy dialog until Clients.clearBusy is called, and then it doesn't go away. This is strange and I can't figure out what's going on since I use the same calls in numerous other places and it works fine. Any ideas? Here is the class definition and method.

    public class DHzClimateZoneHistoryView extends GenericForwardComposer<Window> 
{........


    /**
 * 
 * Method : onLoadButtonClicked
 * @param event
 */
public void onLoadButtonClicked(Event event) throws Exception
{
    try
    {
        Clients.showBusy("Loading...");
        Thread.sleep(7000);
        populateZoneMessageChangeHolderByDateRange();
        Clients.clearBusy();
    } 
    catch (Exception e) 
    {                       
        Clients.clearBusy();
        e.fillInStackTrace();
        _logger.error(".....",e);
        throw e;
    }

}