Re: Problems with CheckGroup
What is U? In my understanding Check(box) operates on a Boolean value
so the classcast exception might be there (btw. I always use
CheckBox.. I never tried Check..).
**
Martin
2009/8/4 burnst...@burnstone.ch burnst...@burnstone.ch:
Hi all
I'm trying to use CheckGroup, but encounter some problems. First, my code:
class NameValueListViewT extends ParameterValueProvider? extends
ListViewT {
U void displayItem(ListItemT listItem, ParameterValueProviderU
parameter) {
...
ListU enumItems = new ArrayListU(parameter.getEnumCodes());
addMultiSelectPanelListItem(listItem, enumItems, labelModel, new
PropertyModelCollectionU(parameter,
valueList), parameter);
}
U void addMultiSelectPanelListItem(ListItemT listItem,
ListU enumItems, IModelString labelModel,
IModelCollectionU model,
final ParameterValueProviderU parameter) {
CheckGroupU comp = new CheckGroupU(value);
comp.setType(parameter.getType());
comp.setRequired(!parameter.isOptional());
comp.setLabel(labelModel);
ListViewU enumListView = new ListViewU(values, enumItems) {
@Override
protected void populateItem(ListItemU item) {
item.add(new CheckU(check, item.getModel()));
item.add(new Label(value,
item.getDefaultModelObjectAsString()));
}
};
enumListView.setReuseItems(true);
comp.add(enumListView);
// Add panel
MultiCheckBoxPanelU panelMCB = new
MultiCheckBoxPanelU(COMPONENT_ID, comp);
listItem.add(panelMCB);
}
}
ParameterValueProvider has the mehtods {get,set}Value[List].
The html looks like this:
html xmlns:wicket
wicket:panel
span wicket:id=value
span wicket:id=values
input type=checkbox wicket:id=check /
span wicket:id=value/span
br/
/span
/span
/wicket:panel
/html
So far, so good. Values are getting displayed and the correct check boxes
are selected. However, when submitting the form, I get an exception:
---
WicketMessage: Method onFormSubmitted of interface
org.apache.wicket.markup.html.form.IFormSubmitListener targeted at component
[MarkupContainer [Component id = cardDetailForm]] threw an exception
Root cause:
java.lang.ClassCastException: java.lang.String
at
org.apache.wicket.markup.html.form.CheckGroup.updateModel(CheckGroup.java:171)
at
org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:225)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:514)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:493)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:493)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:493)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:493)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrder(FormComponent.java:465)
at
org.apache.wicket.markup.html.form.Form.internalUpdateFormComponentModels(Form.java:2051)
at
org.apache.wicket.markup.html.form.Form.updateFormComponentModels(Form.java:2019)
at org.apache.wicket.markup.html.form.Form.process(Form.java:984)
at org.apache.wicket.markup.html.form.Form.process(Form.java:911)
at org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:876)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.apache.wicket.RequestListenerInterface.invoke(RequestListenerInterface.java:182)
at
org.apache.wicket.request.target.component.listener.ListenerInterfaceRequestTarget.processEvents(ListenerInterfaceRequestTarget.java:73)
at
org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents(AbstractRequestCycleProcessor.java:92)
at
org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1241)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1320)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1419)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:456)
at
org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:289)
at
org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)
at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)
at org.mortbay.http.HttpServer.service(HttpServer.java:879)
at
Re: Problems with CheckGroup
Martin Makundi wrote: What is U? In my understanding Check(box) operates on a Boolean value so the classcast exception might be there (btw. I always use CheckBox.. I never tried Check..). U is just the parameter type, in this case a String, but could be an Integer or Float as well. The example code in wicket-examples uses Integers, btw. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Problems with CheckGroup
Have you tried to debug the code where you get the exception? I suspect that you just have some data types mixed. Maybe it is just this: comp.setType(parameter.getType()); Is that necessary? ** Martin 2009/8/4 burnstone burnst...@burnstone.ch: Martin Makundi wrote: What is U? In my understanding Check(box) operates on a Boolean value so the classcast exception might be there (btw. I always use CheckBox.. I never tried Check..). U is just the parameter type, in this case a String, but could be an Integer or Float as well. The example code in wicket-examples uses Integers, btw. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Problems with CheckGroup
Debugging the code just tells me the same as the exception does:
CheckGroup.updateModel:
public void updateModel()
{
CollectionT collection = getModelObject();
if (collection == null)
{
collection = getConvertedInput();
setDefaultModelObject(collection);
}
else
{
modelChanging();
collection.clear();
collection.addAll(getConvertedInput()); -
modelChanged();
}
}
getConvertedInput() returns a String instead of a collection instance.
This just has to be wrong, because it returns T, the parameter of
FormComponentT, and CheckGroup extends FormComponentCollectionT.
Removing the setType-Call doesn't help.
Martin Makundi wrote:
Have you tried to debug the code where you get the exception? I
suspect that you just have some data types mixed.
Maybe it is just this: comp.setType(parameter.getType()); Is that necessary?
**
Martin
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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Re: Problems with CheckGroup
Can you make a quickstart of it an send me?
**
Martin
2009/8/4 burnstone burnst...@burnstone.ch:
Debugging the code just tells me the same as the exception does:
CheckGroup.updateModel:
public void updateModel()
{
CollectionT collection = getModelObject();
if (collection == null)
{
collection = getConvertedInput();
setDefaultModelObject(collection);
}
else
{
modelChanging();
collection.clear();
collection.addAll(getConvertedInput()); -
modelChanged();
}
}
getConvertedInput() returns a String instead of a collection instance. This
just has to be wrong, because it returns T, the parameter of
FormComponentT, and CheckGroup extends FormComponentCollectionT.
Removing the setType-Call doesn't help.
Martin Makundi wrote:
Have you tried to debug the code where you get the exception? I
suspect that you just have some data types mixed.
Maybe it is just this: comp.setType(parameter.getType()); Is that
necessary?
**
Martin
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
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Re: Problems with CheckGroup
so the next step is to step into convertinput() and see why its
returning a string instead of a collection.
-igor
On Tue, Aug 4, 2009 at 1:20 AM, burnstoneburnst...@burnstone.ch wrote:
Debugging the code just tells me the same as the exception does:
CheckGroup.updateModel:
public void updateModel()
{
CollectionT collection = getModelObject();
if (collection == null)
{
collection = getConvertedInput();
setDefaultModelObject(collection);
}
else
{
modelChanging();
collection.clear();
collection.addAll(getConvertedInput()); -
modelChanged();
}
}
getConvertedInput() returns a String instead of a collection instance. This
just has to be wrong, because it returns T, the parameter of
FormComponentT, and CheckGroup extends FormComponentCollectionT.
Removing the setType-Call doesn't help.
Martin Makundi wrote:
Have you tried to debug the code where you get the exception? I
suspect that you just have some data types mixed.
Maybe it is just this: comp.setType(parameter.getType()); Is that
necessary?
**
Martin
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
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Re: Problems with CheckGroup
burnstone wrote: Removing the setType-Call doesn't help. Sorry, after some more debugging and then testing The Right Thing (tm) I have to say this statement is wrong. Removing the call to setType() fixes my problem. Well. Thanks for holding my hand, anyway :) -- chris - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
