Wicket dynamicly add data from database to page - html-table

Question

I'm trying to add some data into page from database, after applying "filter"
After submit form, candidate list is update and I want to push this changes into page.
How can I do this in wicket ?
.java file
public class SearchCandidate extends WebPage {
private SearchCandidateModel searchCandidateModel = new SearchCandidateModel();
private List<CandidateEntity> candidate = new ArrayList();
public SearchCandidate(PageParameters p) {
super(p);
final TextField<String> firstName = new TextField<>("first_name", new PropertyModel<String>(searchCandidateModel, "firstName")); //Filter
final DataView dataView = new DataView("simple", new ListDataProvider(candidate)) {
public void populateItem(final Item item) {
final CandidateEntity user = (CandidateEntity) item.getModelObject();
item.add(new Label("firstName", user.getFirstName()));
}
};
Form<?> form = new Form<Void>("step1") {
#Override
protected void onSubmit() {
candidate = databse.findCandidate(searchCandidateModel.getFirstName());
//UPDATE TABLE
}
};
form.add(firstName);
add(form);
add(dataView);
}
}
html file:
<form wicket:id="step1">
<input wicket:id="first_name" type="text" size="30"/>
</form>
<table cellspacing="0" class="dataview">
<tbody>
<tr wicket:id="simple">
<td><span wicket:id="name">Test ID</span></td>
</tr>
</tbody>
</table>

Answer 1

You can make you DataProvider - dynamic:
new ListDataProvider() {
#Override protected List getData() {
if (noFilter) return emptyList
else return database.getList(filter)
}
}
This way the provider will always load the data according to your data filter.
For more information about static vs. dynamic models/providers check:
https://cwiki.apache.org/confluence/display/WICKET/Working+with+Wicket+models#WorkingwithWicketmodels-DynamicModels