Wicket-Ajax PropertyListView

Question

I got some data going into my propertyListview, got a container around it but when i want to update it with Ajax it aint doing nothing ! How do i update my PropertyListview with Ajax?

EDIT in the background im using JSON Parse to parse data from a weatherstation, that data can change alot, so i want to update the data in the propertyListview

public class WeerPanel extends Panel {

public WeerPanel(String id) throws IOException {
    super(id);

    final WeerService weerService = new WeerServiceImpl();

    PropertyListView<Weer> newview = new PropertyListView<Weer>("weer", weerService.getWeer()) {

        @Override
        protected void populateItem(ListItem<Weer> item) {
            item.add(new Label("temperatuur"));
            item.add(new StaticImage("type", String.format("images/%s.png", item.getModelObject().getType())));
            item.add(new Label("omschrijving"));
        }
    };

    final WeerVoorspellingService weerVoorspellingService = new WeerVoorspellingServiceImpl();

    PropertyListView<WeerVoorspelling> hateView = new PropertyListView<WeerVoorspelling>("weersvoorspelling", weerVoorspellingService.getWeerVoorspelling()) {

        @Override
        protected void populateItem(ListItem<WeerVoorspelling> item) {
            item.add(new Label("dag"));
            item.add(new StaticImage("typeVoorspelling", String.format("images/%s.png", item.getModelObject().getType())));
            item.add(new Label("minTemperatuur"));
            item.add(new Label("maxTemperatuur"));
        }
    };

    final WebMarkupContainer containerWeer = new WebMarkupContainer("containerWeer");
    containerWeer.setOutputMarkupId(true);
    containerWeer.add(hateView);
    containerWeer.add(newview);
    add(containerWeer);

    add(new AbstractAjaxTimerBehavior(Duration.seconds(10)) {

        @Override
        protected final void onTimer(AjaxRequestTarget target) {
            target.add(containerWeer);
        }
    });
}

}

This is some code i do in the background, its a dummy that changes the temp of the weather by a random number each time.

                Random r = new Random();
            int randomInt = r.nextInt(100);
            weer.add(new Weer("rain", "Mooi bewolkt", randomInt, v.getVoorspellingen()));

The dummy code is fine, but STILL there is nothing of a change to see at my page.... as if my the list isnt getting any new data..

FIXED here is the code for people that will find this handy

public class WeerPanel extends Panel {

    public WeerPanel(String id) {

        super(id);

        add(createContainer());

        add(new AbstractAjaxTimerBehavior(Duration.seconds(10)) {
            @Override
            protected final void onTimer(AjaxRequestTarget target) {
                target.add(createContainer());
            }
        });
    }

    private final WebMarkupContainer createContainer() {
        final WeerService weerService = new WeerServiceImpl();

        PropertyListView<Weer> newview = null;
        try {
            newview = new PropertyListView<Weer>("weer", weerService.getWeer()) {

                @Override
                protected void populateItem(ListItem<Weer> item) {
                    item.add(new Label("temperatuur"));
                    item.add(new StaticImage("type", String.format("images/%s.png", item.getModelObject().getType())));
                    item.add(new Label("omschrijving"));
                }
            };
        } catch (Exception e) {
            e.printStackTrace();
        }

        WeerVoorspellingService weerVoorspellingService = new WeerVoorspellingServiceImpl();

        PropertyListView<WeerVoorspelling> hateView = null;
        try {
            hateView = new PropertyListView<WeerVoorspelling>("weersvoorspelling", weerVoorspellingService.getWeerVoorspelling()) {

                @Override
                protected void populateItem(ListItem<WeerVoorspelling> item) {
                    item.add(new Label("dag"));
                    item.add(new StaticImage("typeVoorspelling", String.format("images/%s.png", item.getModelObject().getType())));
                    item.add(new Label("minTemperatuur"));
                    item.add(new Label("maxTemperatuur"));
                }
            };
        } catch (Exception e) {
            e.printStackTrace();
        }

        WebMarkupContainer containerWeer = new WebMarkupContainer("containerWeer");
        containerWeer.setOutputMarkupId(true);
        containerWeer.add(hateView);
        containerWeer.add(newview);
        addOrReplace(containerWeer);

        return containerWeer;
    }
}

Answer 1

Please have a look at the output in the wicket ajax console, it's probably saying something that a listview cannot be updated directly. Also, can you add the code where you are updating the Listview?