e.g.
public class AjaxEvent
{
private Set<Component> listeners = new HashSet<Component>();
public void register(Component listener)
{
listeners.add(listener);
}
public void fire(AjaxRequestTarget request)
{
for (Component listener : listeners)
request.addComponent(listener);
}
}
On Thu, May 8, 2008 at 6:07 PM, Scott Swank <[EMAIL PROTECTED]> wrote:
> > Ajax
> >
> > 3. Now im working with more Ajax. What is a good inter component
> > communication scheme? Swing has its listeners, but in wicket i tend to
> call
> > methods on dependent components from ajax event handlers. Is this a good
> > approach - (it atleast dont feel so good)?
>
> I try to have my components just be a view of their model. Then it's
> just a matter of setting the model(s) appropriately and refreshing the
> components.
>
> Alternately, create a AjaxEvent class that you subclass to represent
> each of the actions in which you're interested. Put a collection of
> those on your Page. Then have allow each component to register itself
> as a listener of an event. Then an ajax call would result in
> SomeAjaxEvent.fire(AjaxTargetRequest) and that would in turn call
> addComponent() for each registered listener component.
>
> - Scott
>
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