In other words
I have a panel called OrderPanel this has a
WebMarkupContainer ajaxSpinner,
AjaxFallbackDefaultDataTable orderConfirmation,
AjaxSelfUpdatingTimerBehavior updateBehavior,
In the constructor of the panel
I instantiate all the above components and call set visible false on
orderConfirmation,
here is the code
public OrderPanel(String id){
super(id);
add(ajaxSpinner = new WebMarkupContainer("ajaxSpinner"));
add(orderConfirmation= new
AjaxFallbackDefaultDataTable("orderConfirmation",.............));
orderConfirmation.setVisible(false);
add(updateBehavior = new AjaxSelfUpdatingTimerBehavior(Duration
.seconds(5));
// updates my model
new OrderProcessThread(getSession()).start();
}
I override the method onBeforeRender() here I check the status of thread
which I started in the constructor .
becasue of AjaxSelfUpdatingTimerBehavior with a duration of 5 seconds the
onBeforeRender is called every 5 seconds.
here is the code for onBeforeRender
@Override
protected void onBeforeRender() {
super.onBeforeRender();
if(((MySession)getSession()).isOrderProcessComplete(true)){
// This means our worker thread has finished and updated the
session.
// Now, we can update our view states to show the order
confirmation.
ajaxSpinner.setVisible(false);
orderConfirmation.setVisible(true);
// update behavior
updateBehavior.stop();
}
}
till here I am fine, I have no problems implementing time consuming
selects .
In case of AjaxFallbackDefaultDataTable It has sortable Headers and
pagination links, when user
clicks on any header or pagination link the code in constructor is not
called so my thread is not started , so this time the method from
dataprovider is called which is
public Iterator iterator(int first, int count)
my actual implementation of this method is it just returns the model which
is updated by OrderProcessThread.
is there any method which I can override for AjaxFallbackDefaultDataTable
when user clicks on sortable header or paginations links so that I can
restart the thread and the timer ?
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