What you want is to implement the EventBus pattern (formally Observer
Pattern).
Basically, with an Eventbus, your panels subscribe to a given event and
when some other panel "fires" that event the subscriber gets the
message:
Panel1:
//Subscribe to event Type1.
eventBus.addHandler(EventType1.class,
new EventType1Handler() {
@Override
public void oneEvent(final EventType1 event) {
//do whatever with the event
}
});
Panel2:
onClick(.....){
....
//After some action, fire that something has change to
all
//those subscribers that might be interested.
eventBus.fireEvent(new EventType1(whatever));
}
I'm quite new using Wicket, but I haven't seen anything like this
implemented. But I think it's quite trivial. It would be quite nice if
Wicket itself provides you with an out-of-the-box EventBus, the same way
GWT does.
Have a look to the GWT implementation, you can practically "copy-paste"
it. There it's called HandlerManager.
I don't know what's the "standard" way to solve the problem you have.
Surelly everybody has run into it sooner or later. I'm very interested
in hearing what a seasoned Wicket developer has to say.
-----Original Message-----
From: Ben [mailto:benarje...@yahoo.com]
Sent: Mittwoch, 8. September 2010 16:15
To: users@wicket.apache.org
Subject: How can I capture the data on one panel 1 when i click submit
button on panel 2
Hi,
I have a page and multiple panels added to it.
e.g I have panel1 and panel2 added to a page.
On Panel I have components RadioChoice, dropdownchoice,text area that
accepts input from the user.
Panel 2 has two textfields (accepts the login info) and submit button.
When i click submit button on panel2, how can I capture the data from
panel1.
Here is my panel1
public class ImageQualityPanel extends Panel {
public ImageQualityPanel(String id, WicketAnalysisForm aform) {
super(id);
ImageQuality imageQuality = new ImageQuality(); //model
add(new ImageQualityForm("imageQualityForm", new
CompoundPropertyModel(imageQuality), aform));
}
private static class ImageQualityForm extends Form {
public ImageQualityForm(String id, IModel model,
WicketAnalysisForm
aform) {
super(id, model);
add(new Label("qualityQuestion", (....)));
add(new Label("safetyQuestion", (...)));
add(new Label("locationQuestion", (...)));
add(new Label("commentsQuestion", (...)));
List<String> options = Arrays.asList("Yes", "No");
add(new RadioChoice("qualityGroup", options);
add(new RadioChoice("criteriaGroup", options);
TextArea notes = new TextArea("notes");
notes.setRequired(true);
add(notes);
DropDownChoice group = new DropDownChoice("location");
group.setChoices(new PropertyModel(model, "location") {
public Object getObject() {
List<String> l = new ArrayList<String>(5);
l.add("Location 1");
l.add("Location 2");
l.add("Location 3");
l.add("Location 4");
return l;
}
});
add(group);
aform.setImageQuality((ImageQuality)model.getObject());
I am getting null when i try to get the model data.
Thanks in anticipation
--
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-one-panel-1-when-i-click-submit-button-on-panel-2-tp2531350p2531350.htm
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