Re: AbstractAjaxTimerBehavior causes exception
Hi Chris,
Maybe it is because you are adding the timer to the label and later on
replacing it is another component. Then the second AJAX round trip to the
page will look for the AbstractAjaxTimerBehavior associated to the message
component, but the new one does not have associated such a behavior. And you
do not need to replace the label component (just udpate it via AJAX): just
write a model that displays If you see this message wicket is properly
configured and running if count =0 and Test + testCounter if 0.
Best,
Ernesto
On Wed, Nov 11, 2009 at 9:21 AM, Giambalvo, Christian
christian.giamba...@excelsisnet.com 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);
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
Re: AbstractAjaxTimerBehavior causes exception
Following example works fine
public class TestCounter extends WebPage {
private int counter = 0;
private Label message;
/**
*
*/
public TestCounter() {
message = new Label(message, new AbstractReadOnlyModelString(){
private static final long serialVersionUID = 1L;
public String getObject() {
counter++;
if(TestCounter.this.getCounter() == 0) {
return Hi!;
} else {
return I have been update + getCounter();
}
};
});
message.setOutputMarkupId(true);
add(message);
message.add(new AbstractAjaxTimerBehavior(Duration.seconds(3)) {
private static final long serialVersionUID = 1L;
@Override
protected void onTimer(AjaxRequestTarget target) {
if(target != null) {
target.addComponent(message);
}
}
});
}
public int getCounter() {
return counter;
}
}
and
html xmlns:wicket=org.apache.wicket
body
span wicket:id=message/span
/body
/html
On Wed, Nov 11, 2009 at 9:43 AM, Giambalvo, Christian
christian.giamba...@excelsisnet.com wrote:
Btw, the exception is thrown on first call not on second round trip.
-Ursprüngliche Nachricht-
Von: Giambalvo, Christian [mailto:christian.giamba...@excelsisnet.com]
Gesendet: Mittwoch, 11. November 2009 09:39
An: users@wicket.apache.org
Betreff: AW: AbstractAjaxTimerBehavior causes exception
Hi Ernesto,
the label was just an example.
In my app i try to replace the navigation (you remember your suggestion
with a timer?)
The navigation is a panel. So recreate the whole panel and then try to
replace it with the new one.
This is where the AbstractAjaxTimerBehavior comes in.
Greets Chris
-Ursprüngliche Nachricht-
Von: Ernesto Reinaldo Barreiro [mailto:reier...@gmail.com]
Gesendet: Mittwoch, 11. November 2009 09:35
An: users@wicket.apache.org
Betreff: Re: AbstractAjaxTimerBehavior causes exception
Hi Chris,
Maybe it is because you are adding the timer to the label and later on
replacing it is another component. Then the second AJAX round trip to the
page will look for the AbstractAjaxTimerBehavior associated to the
message
component, but the new one does not have associated such a behavior. And
you
do not need to replace the label component (just udpate it via AJAX): just
write a model that displays If you see this message wicket is properly
configured and running if count =0 and Test + testCounter if 0.
Best,
Ernesto
On Wed, Nov 11, 2009 at 9:21 AM, Giambalvo, Christian
christian.giamba...@excelsisnet.com 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);
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
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
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
Re: AbstractAjaxTimerBehavior causes exception
Put a container (WebMarkupContainer?) around components you want to update,
atatch the behavior to that container and make sure the comapoent you want
to update are dynamic: meaning that theirs state should change every
time they are rendered.
Best,
Ernesto
On Wed, Nov 11, 2009 at 10:24 AM, Giambalvo, Christian
christian.giamba...@excelsisnet.com wrote:
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
Re: AbstractAjaxTimerBehavior causes exception
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
titleWicket Quickstart Archetype Homepage/title
/head
body
strongWicket Quickstart Archetype Homepage/strong
br/br/
div wicket:id=container
span wicket:id=panelmessage 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
