Probably you should move this code in onBeforeRender() (and use
addOrReplace().
This way every time you'll have the right panel.
On Sat, 2008-04-19 at 07:28 -0700, Doug Donohoe wrote:
> I have a page which displays a [login box] (if not logged in) or an info box
> [user name|logout link] if logged in.
>
> I implemented this as follows:
>
> User user = BaseSession.get().getLoggedInUser();
> if (user == null)
> {
> add(new Login("login"));
> }
> else
> {
> add(new CurrentProfile("login"));
> }
>
> Both Login and CurrentProfile are subclasses of "Panel". When the login
> form is submitted or the logout link is submitted, in order to get the page
> to re-render, I had to use this code:
>
> setResponsePage(getPage().getClass()); // need to use "class" so
> page is re-rendered
>
> As a new wicket user, I'd like a clarification on why this is necessary. If
> I used this code:
>
> setResponsePage(getPage());
>
> ... which appears to be the default behavior if setResponsePage() isn't
> called ... then the page is simply displayed without re-rendering (e.g.,
> after login, the login box is still shown). So, my question is what's the
> difference between the two? Is there a way to mark a page as "needing
> re-rendering"? Is my solution the "correct" way in Wicket?
>
> This also raises the question about how many pages are stored in the page
> map. For example, if I were to login and logout 10 times in a row ... would
> there be 20 pages in the page map? Is there a way to clear out the page map
> for a page?
>
> In my case, I invalidate the session on logout, so the above case isn't an
> issue in this exact case. I'm more concerned about someone who navigates my
> site and visits hundreds of pages. How do I keep the session from filling
> up with old pages?
>
> Finally, is there a best practice to debug/monitor session size and page map
> size?
>
> Thanks,
>
> -Doug
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