passing parameters to wicket panel - wicket

Question

firstly wish you all a very happy new year.
i am moving my data tables in to a panel from webpage. i was using pageparameters to pass required parameters on clicking the link for retrieving data and displaying it in the next page. now that i have moved those tables in to a panel i am not sure how to forward those parameters in panels.
My calling Method:
final TextField<String> jobnumber = new TextField<String>("jobnumber ", Model.of(""));
jobnumber .setRequired(true);
final TextField<String> jobtype= new TextField<String>("jobtype", Model.of(""));
jobtype.setRequired(true);
Form form = new Form("form") {
#Override
public void onSubmit() {
final String jobnumber = jobnumber .getModelObject();
final String jobtype= jobtype.getModelObject();
PageParameters params= new PageParameters();
params.add("jobnumber ", jobnumber );
params.add("jobtype", jobtype);
new Job("jobs", params);
}
};
Button button = new Button("button");
form.add(button);
form.add(jobnumber);
form.add(jobtype);
add(form);
My Panel Constructor:
public class Job extends Panel {
public Job(String id, **PageParameters params**) {
super(id);
String jobnumber = params.get("jobNumber").toString();
String jobtype= params.get("jobtype").toString();
add(new Label("jobNumberLabel", jobnumber));
add(new Label("jobtypeLabel", jobtype));
list = retrieveJob(jobnumber, jobtype);
add(new ListView("agilejobs1", list) {
#Override
protected void populateItem(ListItem item) {
final Job job = (Job) item.getModelObject();
item.add(new Label("jobNumber", job.getJobNumber()));
item.add(new Label("jobdesc", job.getJobdesc()));
item.add(new Label("jobcount", job.getJobCount()));
}
});
}
}
i have tried to replace PageParameters with IModel but it did not work.
Please suggest.
Thanks

Answer 1

I would use a IModel<List<Job>>. You can create one in your panel like this:
public class JobPanel extends Panel {
public JobPanel(String id, String jobnumber, String jobtype) {
super(id);
IModel<List<Job>> jobListModel = new ListModel<Job>(retrieveJob(jobnumber,jobtype));
add(new ListView("agilejobs1", jobList) {
#Override
protected void populateItem(ListItem item) {
final Job job = (Job) item.getModelObject();
item.add(new Label("jobNumber", job.getJobNumber()));
item.add(new Label("jobdesc", job.getJobdesc()));
item.add(new Label("jobcount", job.getJobCount()));
}
});
}}
However, it would be better to construct the IModel<List<Jobs>> outside of the Panel and just pass it as an argument. The creation/setting of the model can be done in an Page, an onSubmit() in a Form or whatever method you like. Then the code becomes much cleaner, as the JobPanel will only be responsible for showing the data.