public class HomePage extends WebPage {
private static final long serialVersionUID = 1L;
private static int testCounter = 0;
WebMarkupContainer container;
/**
* Constructor that is invoked when page is invoked without a session.
*
* @param parameters
* Page parameters
*/
public HomePage(final PageParameters parameters) {
container = new WebMarkupContainer("container");
// Add the simplest type of label
container.add(new PanelC("panel"));
container.setOutputMarkupId(true);
container.add(new AbstractAjaxTimerBehavior(Duration.seconds(4))
{
private static final long serialVersionUID = 1L;
@Override
protected void onTimer(AjaxRequestTarget target)
{
Panel replacement = null;
testCounter++;
switch((testCounter%3))
{
case 0:
replacement = new PanelA("panel");
break;
case 1:
replacement = new PanelB("panel");
break;
case 2:
replacement = new PanelC("panel");
break;
}
container.addOrReplace(replacement);
target.addComponent(container);
}
});
add(container);
}
}
and
<html xmlns:wicket="
http://wicket.apache.org/dtds.data/wicket-xhtml1.4-strict.dtd"; >
<head>
<title>Wicket Quickstart Archetype Homepage</title>
</head>
<body>
<strong>Wicket Quickstart Archetype Homepage</strong>
<br/><br/>
<div wicket:id="container">
<span wicket:id="panel">message will be here</span>
</div>
</body>
</html>
will do it
Best,
Ernesto
On Wed, Nov 11, 2009 at 10:25 AM, Giambalvo, Christian <
christian.giamba...@excelsisnet.com> wrote:
> Look at the sample project.
>
>
> -----Ursprüngliche Nachricht-----
> Von: Giambalvo, Christian [mailto:christian.giamba...@excelsisnet.com]
> Gesendet: Mittwoch, 11. November 2009 10:24
> An: users@wicket.apache.org
> Betreff: AW: AbstractAjaxTimerBehavior causes exception
>
> You're right Ernesto, your example works, but what if I want to replace a
> whole panel and not just the model of a label?
>
>
> -----Ursprüngliche Nachricht-----
> Von: Ernesto Reinaldo Barreiro [mailto:reier...@gmail.com]
> Gesendet: Mittwoch, 11. November 2009 10:15
> An: users@wicket.apache.org
> Betreff: Re: AbstractAjaxTimerBehavior causes exception
>
> Well I think it all boils down to the explanation a gave on my first
> e-mail:
> if you replace the component with a new one that does not have the behavior
> then you will get an exception (the same will happend if you remove the
> behavior during a round trip). I guess Martin was just trying to say that
> you should use the same label...? Did you try the code I posted? It does
> work ;-)
>
> Cheers,
>
> Ernesto
>
> On Wed, Nov 11, 2009 at 10:06 AM, Giambalvo, Christian <
> christian.giamba...@excelsisnet.com> wrote:
>
> > Hi Martin,
> >
> > this doesn't work.
> >
> > @Override
> > protected void onTimer(AjaxRequestTarget target)
> > {
> > Label t2 = new Label("message", "Test " + testCounter);
> > t2.setOutputMarkupId(true);
> > test = t2;
> > testCounter++;
> > target.addComponent(test);
> > }
> > It doesn't throw an exception, but the t2 didn't show up.
> > I think this is because t2 isn't added to the page.
> > That's why there is Component#replaceWith(Component).
> >
> > Greets
> >
> > -----Ursprüngliche Nachricht-----
> > Von: Martin Grigorov [mailto:mcgreg...@e-card.bg]
> > Gesendet: Mittwoch, 11. November 2009 09:59
> > An: users@wicket.apache.org
> > Betreff: Re: AbstractAjaxTimerBehavior causes exception
> >
> > On Wed, 2009-11-11 at 09:21 +0100, Giambalvo, Christian wrote:
> > > Hi all,
> > >
> > >
> > >
> > > maybe i found a bug.
> > >
> > > Don't know if I'm doing something wrong.
> > >
> > > But it's a simple usecase.
> > >
> > >
> > >
> > > Following code produces an exception:
> > >
> > >
> > >
> > > public class HomePage extends WebPage {
> > >
> > >
> > >
> > > private static final long serialVersionUID = 1L;
> > >
> > >
> > >
> > > private static int testCounter = 0;
> > >
> > >
> > >
> > > public HomePage(final PageParameters parameters) {
> > >
> > >
> > >
> > > // Add the simplest type of label
> > >
> > > final Label test = new Label("message", "If you see this
> message
> > > wicket is properly configured and running");
> > >
> > > test.add(new AbstractAjaxTimerBehavior(Duration.seconds(1))
> > >
> > > {
> > >
> > > @Override
> > >
> > > protected void onTimer(AjaxRequestTarget target)
> > >
> > > {
> > >
> > > Label t2 = new Label("message", "Test " + testCounter);
> > >
> > > test.replaceWith(t2);
> > here you need to make : test = t2;
> > >
> > > testCounter++;
> > >
> > > target.addComponent(test);
> > >
> > > }
> > >
> > > });
> > >
> > >
> > >
> > > add(test);
> > >
> > > }
> > >
> > > }
> > >
> > >
> > >
> > > Exception:
> > >
> > > Root cause:
> > >
> > > java.lang.IllegalStateException: No Page found for component [Component
> > > id = message]
> > > at org.apache.wicket.Component.getPage(Component.java:1754)
> > > at org.apache.wicket.RequestCycle.urlFor(RequestCycle.java:872)
> > > at org.apache.wicket.Component.urlFor(Component.java:3286)
> > > at
> > >
> org.apache.wicket.behavior.AbstractAjaxBehavior.getCallbackUrl(AbstractA
> > > jaxBehavior.java:124)
> > > at
> > >
> org.apache.wicket.ajax.AbstractAjaxTimerBehavior.getCallbackScript(Abstr
> > > actAjaxTimerBehavior.java:127)
> > > at
> > >
> org.apache.wicket.ajax.AbstractAjaxTimerBehavior.getJsTimeoutCall(Abstra
> > > ctAjaxTimerBehavior.java:120)
> > > at
> > >
> org.apache.wicket.ajax.AbstractAjaxTimerBehavior.respond(AbstractAjaxTim
> > > erBehavior.java:163)
> > > at
> > >
> org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDef
> > > aultAjaxBehavior.java:299)
> > > at
> > >
> org.apache.wicket.request.target.component.listener.BehaviorRequestTarge
> > > t.processEvents(BehaviorRequestTarget.java:119)
> > > at
> > >
> org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(Ab
> > > stractRequestCycleProcessor.java:92)
> > > at
> > >
> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java
> > > :1250)
> > > at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
> > > at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
> > > at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
> > > at
> > >
> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:468
> > > )
> > > at
> > >
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:
> > > 301)
> > > at
> > >
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHan
> > > dler.java:1157)
> > > at
> > >
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
> > > at
> > >
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:2
> > > 16)
> > > at
> > >
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> > > at
> > >
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
> > > at
> > > org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
> > > at
> > >
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandler
> > > Collection.java:230)
> > > at
> > >
> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.jav
> > > a:114)
> > > at
> > >
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> > > at org.mortbay.jetty.Server.handle(Server.java:326)
> > > at
> > > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:536)
> > > at
> > >
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConne
> > > ction.java:915)
> > > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
> > > at
> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> > > at
> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)
> > > at
> > >
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
> > > 409)
> > > at
> > >
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java
> > > :582)
> > >
> > >
> > >
> > > Greets
> > >
> > > Chris
> > >
> >
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
> > For additional commands, e-mail: users-h...@wicket.apache.org
> >
> >
>
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>
>
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