Re: svn commit: r1073435 - /wicket/branches/wicket-1.4.x/wicket-examples/src/main/java/org/apache/wicket/examples/ajax/prototype/Index.java

[Igor Vaynberg <ig...@gmail.com>]

pedro, we should probably put the anticaching code into
componentrequesttarget. also, whatever url is generated for the
prototype ajax call should have a random string appended to it, that
way the browser wont cache the response either.

thanks,
-igor

On Tue, Feb 22, 2011 at 9:52 AM,  <pe...@apache.org> wrote:
> Author: pedro
> Date: Tue Feb 22 17:52:21 2011
> New Revision: 1073435
>
> URL: http://svn.apache.org/viewvc?rev=1073435&view=rev
> Log:
> WICKET-3466 - preventing the response for "click me" link from being cached
>
> Modified:
>    wicket/branches/wicket-1.4.x/wicket-examples/src/main/java/org/apache/wicket/examples/ajax/prototype/Index.java
>
> Modified: wicket/branches/wicket-1.4.x/wicket-examples/src/main/java/org/apache/wicket/examples/ajax/prototype/Index.java
> URL: http://svn.apache.org/viewvc/wicket/branches/wicket-1.4.x/wicket-examples/src/main/java/org/apache/wicket/examples/ajax/prototype/Index.java?rev=1073435&r1=1073434&r2=1073435&view=diff
> ==============================================================================
> --- wicket/branches/wicket-1.4.x/wicket-examples/src/main/java/org/apache/wicket/examples/ajax/prototype/Index.java (original)
> +++ wicket/branches/wicket-1.4.x/wicket-examples/src/main/java/org/apache/wicket/examples/ajax/prototype/Index.java Tue Feb 22 17:52:21 2011
> @@ -16,11 +16,13 @@
>  */
>  package org.apache.wicket.examples.ajax.prototype;
>
> +import org.apache.wicket.RequestCycle;
>  import org.apache.wicket.examples.WicketExamplePage;
>  import org.apache.wicket.markup.html.basic.Label;
>  import org.apache.wicket.markup.html.link.ILinkListener;
>  import org.apache.wicket.markup.html.link.Link;
>  import org.apache.wicket.model.PropertyModel;
> +import org.apache.wicket.protocol.http.WebResponse;
>  import org.apache.wicket.request.target.component.ComponentRequestTarget;
>  import org.apache.wicket.util.string.AppendingStringBuffer;
>
> @@ -47,7 +49,7 @@ public class Index extends WicketExample
>        public Index()
>        {
>                // Add the Ajaxian link to the page...
> -               add(new Link("link")
> +               add(new Link<Void>("link")
>                {
>                        /**
>                         * Handles a click on the link. This method is accessed normally using a standard http
> @@ -60,7 +62,18 @@ public class Index extends WicketExample
>                                count++;
>
>                                // The response should refresh the label displaying the counter.
> -                               getRequestCycle().setRequestTarget(new ComponentRequestTarget(counter));
> +                               getRequestCycle().setRequestTarget(new ComponentRequestTarget(counter)
> +                               {
> +                                       @Override
> +                                       public void respond(RequestCycle requestCycle)
> +                                       {
> +                                               super.respond(requestCycle);
> +                                               WebResponse response = (WebResponse)requestCycle.getResponse();
> +                                               response.setHeader("Pragma", "no-cache");
> +                                               response.setHeader("Cache-Control",
> +                                                       "no-cache, no-store, max-age=0, must-revalidate");
> +                                       }
> +                               });
>                        }
>
>                        /**
> @@ -78,7 +91,7 @@ public class Index extends WicketExample
>                });
>
>                // Add the label
> -               add(counter = new Label("counter", new PropertyModel(this, "count")));
> +               add(counter = new Label("counter", new PropertyModel<Integer>(this, "count")));
>        }
>
>        /**
>
>
>