store the value on the session? make it a static member variable or store
it at application level? it all depends on what you want: the value to
change independently for each user or be the "same" for all users...
Ernesto
On Thu, Nov 20, 2008 at 11:30 AM, Singh Mukesh <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I am using wicket. I have a page with one links which increase the counter
> value based on user click on the link, for all these actions I am using
> Ajax. For instance user click 5 times on link the counter shows value 5. It
> is ok but if I click on browsers refresh button all changes are lost and it
> shows the counter value 0 instead of 5. How to handle the refresh button?
>
> Please find the code below.
>
> TestPage.java
>
> import org.apache.wicket.PageParameters;
> import org.apache.wicket.ajax.AjaxRequestTarget;
> import org.apache.wicket.ajax.markup.html.AjaxLink;
> import org.apache.wicket.ajax.markup.html.form.AjaxCheckBox;
> import org.apache.wicket.markup.html.WebPage;
> import org.apache.wicket.markup.html.basic.Label;
> import org.apache.wicket.model.IModel;
> import org.apache.wicket.model.Model;
>
> public class TestPage extends WebPage {
>
> public TestPage(PageParameters parameters) {
> super(parameters);
> final Model<Integer> modell = new Model<Integer>(new
> Integer(0));
> // Slik at telleverdien legges i session
> setDefaultModel(modell);
> final Label telleLabel = new Label("teller", modell);
> telleLabel.setOutputMarkupId(true);
> final Label hashcodeLabel = new Label("hashcode", new
> IModel<String>() {
> private static final long serialVersionUID = 1L;
>
> public String getObject() {
> return
> String.valueOf(System.identityHashCode(TestPage.this));
> }
>
> public void setObject(String object) {
> /* NOOP */
> }
>
> public void detach() {
> /* NOOP */
> }
>
> });
> hashcodeLabel.setOutputMarkupId(true);
> add(telleLabel);
> add(new AjaxLink<Integer>("link", modell) {
> private static final long serialVersionUID = 1L;
>
> @Override
> public void onClick(AjaxRequestTarget target) {
> // Øk det delte modellobjektet
> Integer tall = getModelObject();
> int verdi = tall.intValue() + 1;
> tall = new Integer(verdi);
> setModelObject(tall);
> // Fortell klienten hvilken komponent som
> skal oppdateres
> target.addComponent(telleLabel);
> target.addComponent(hashcodeLabel);
> }
> });
> add(hashcodeLabel);
> add(new AjaxCheckBox("versioned", new
> Model<Boolean>(Boolean.TRUE)) {
> private static final long serialVersionUID = 1L;
>
> @Override
> protected void onUpdate(AjaxRequestTarget target) {
>
> setVersioned(this.getModelObject().booleanValue());
> }
>
> });
> setVersioned(true);
> }
>
>
>
>
> }
>
>
>
> TestApplication.java
>
> import org.apache.wicket.Page;
> import org.apache.wicket.Request;
> import org.apache.wicket.Response;
> import org.apache.wicket.Session;
> import org.apache.wicket.protocol.http.WebApplication;
>
> public class TestApplication extends WebApplication {
>
> @Override
> public Class<? extends Page> getHomePage() {
> return TestPage.class;
> }
>
> }
>
> TestPage.html
>
> <html
> xmlns="http://www.w3.org/1999/xhtml";
> xmlns:wicket="http://wicket.apache.org/";>
> <!-- Basis-side som inneholder navigasjonssti -->
> <head>
> <title>Testside</title>
> </head>
> <body>
> <a href="#" style="font: bold 12pt 'Arial'"
> wicket:id="link">+</a> <span wicket:id="teller">0</span>
> <p class="portlet-font">Denne portleten har hashCode lik <b
> wicket:id="hashcode">34563</b>.</p>
> <p class="portlet-font"><input type="checkbox"
> class="portlet-form-field" wicket:id="versioned"> <span
> class="portlet-form-label">Versjonert</span></p>
> </body>
> </html>
>
>
> Please suggest me the way how to handle the refresh button problem.
>
> Please do the needful.
>
>
> Med vennlig hilsen
>
> MUKESH SINGH
> CAPGEMINI Consultant
> Arrive AS
> T (+47) 46 47 90 16
> E-post: [EMAIL PROTECTED]
> http://servicedesk.arrive.no
>
>
>
