Stephanie,
I have a similar problem in my app - I have persistent page properties that
needed to remain on the page for a period of time, but at some point they
should basically be cleared, so as not to clog up the session.
The solution I came up with was to define a certain point (eg. top-level menu
selection in my app) where you can clear all persistent page properties.
So my top-level menus are DirectLinks, that call a listener that does
something like this:
public abstract component HeaderMenu extends BaseComponent {
public String showBookingPage(IRequestCycle cycle){
PageUtils.clearAllPageStates(cycle);
return "Booking";
}
public String showSearchPage(IRequestCycle cycle){
PageUtils.clearAllPageStates(cycle);
return "Search";
}
..... {etc}
}
public class PageUtils {
public static void clearAllPageStates(IRequestCycle cycle){
List<String> pageNames =
cycle.getInfrastructure().getSpecificationSource().getApplicationNamespace().getPageNames();
for (String pageName : pageNames){
cycle.forgetPage(pageName);
}
}
}
On Fri 16 December 2005 03:53, Stephane Decleire wrote:
> I thought it has because i have never found a solution to clean properly
> persistent properties on a page in the special case where this page is
> left using an ExternalLink (cause i haven't found the right place to
> call the forgetPage ou the discardPage function in this specific case).
> But i'm just a newbie ...
>
> Stephane
>
> Geoff Longman wrote:
> >has nothing to do with links...
> >
> > /**
> > * Much like [EMAIL PROTECTED] IEngine#forgetPage(String)}, but the page
> >stays active and can even
> > * record changes, until the end of the request cycle, at which
> >point it is discarded
> > * (and any recorded changes are lost).
> > * This is used in certain rare cases where a page has persistent
> >state but is
> > * being renderred "for the last time".
> > *
> > * @since 2.0.2
> > *
> > **/
> >
> > public void discardPage(String name);
> >
> >On 12/15/05, Stephane Decleire <[EMAIL PROTECTED]> wrote:
> >>cycle.discardPage() is the solution where there is a listener (as in
> >>DirectLink) but what is the right way to discard persistent properties
> >>when a page is left using an ExternalLink ?
> >>
> >>Stephane
> >>
> >>Geoff Longman wrote:
> >>>The short answer is no, there is no automatic cleanup.
> >>>
> >>>cycle.discardPage() will turf persistent properties
> >>>
> >>>if you have private fields you have to clean them up yourself using
> >>>the detach mechanism.
> >>>
> >>>Geoff
> >>>
> >>>On 12/15/05, Ryan Pan <[EMAIL PROTECTED]> wrote:
> >>>>Hi all,
> >>>> Can any body tell me how to clean the information stored in the page
> >>>>automatically?
> >>>> I encounter a issue that when I come back to the page that had been
> >>>>to,informations had not been cleaned.
> >>>> So any answer?
> >>>>
> >>>>Thanks,
> >>>>Ryan.
> >>>
> >>>--
> >>>The Spindle guy. http://spindle.sf.net
> >>>Get help with Spindle:
> >>>http://lists.sourceforge.net/mailman/listinfo/spindle-user
> >>>Announcement Feed:
> >>>http://www.jroller.com/rss/glongman?catname=/Announcements
> >>>Feature Updates: http://spindle.sf.net/updates
> >>>
> >>>---------------------------------------------------------------------
> >>>To unsubscribe, e-mail: [EMAIL PROTECTED]
> >>>For additional commands, e-mail: [EMAIL PROTECTED]
> >>
> >>--
> >>Stéphane Decleire
> >>
> >>05 56 57 99 20
> >>06 63 78 69 06
> >
> >--
> >The Spindle guy. http://spindle.sf.net
> >Get help with Spindle:
> >http://lists.sourceforge.net/mailman/listinfo/spindle-user
> >Announcement Feed:
> >http://www.jroller.com/rss/glongman?catname=/Announcements
> >Feature Updates: http://spindle.sf.net/updates
> >
> >---------------------------------------------------------------------
> >To unsubscribe, e-mail: [EMAIL PROTECTED]
> >For additional commands, e-mail: [EMAIL PROTECTED]
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
