Cache it in your dataprovider, and have your dataprovider implement
IDetachable where in detach() you reset the cached query result.
Martijn
On 1/18/07, Tim Squires <[EMAIL PROTECTED]> wrote:
> Thanks Igor, the DataProvider /was/ caching the results. Do you know if
> there's a nice way of retrieving the iterator and size without
> retrieving the results twice?
>
> i.e. I currently have
>
> public Iterator iterator(int first, int count) {
> return
> ATMInstallsDao.getFromApplicationContext().getAllTasks().subList(first,
> first + count)
> .iterator();
> }
>
> public int size() {
> return
> ATMInstallsDao.getFromApplicationContext().getAllTasks().size();
> }
>
> Since it's using Sping/Hibernate/EhCache it does not actually go back to
> the database but it would be nice not to ask the cache for the results
> twice.
>
> Thanks,
> Tim
>
> ________________________________
>
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Igor
> Vaynberg
> Sent: 17 January 2007 16:07
> To: [email protected]
> Subject: Re: [Wicket-user] DataView modelChanged
>
>
> you dont need to do anything. next request the dataprovider is polled
> again. if the dataview really doesnt refresh make sure your
> dataprovider/orm layer are not doing any caching.
>
> -igor
>
>
>
> On 1/17/07, Tim Squires <[EMAIL PROTECTED]> wrote:
>
> Hi again,
>
> I have a simple DataView where one of the columns contains a
> Link which
> onClick modifies the data. What is the best way of telling the
> DataView
> that the model has changed. I've tried a few things, see the
> comments
> in the code....
>
> Thanks for your help,
> Tim
>
> DataView dataView = new DataView("tasks",
> new UserTaskDataProvider(user))
> {
>
> protected void populateItem(final Item
> item) {
> final TaskInstance task =
> (TaskInstance)
> item.getModelObject();
>
> item.add(new Label("taskName",
> task.getName()));
>
> // add a link that, when
> clicked,
> assigns the task back to
> // the group
> Link assignLink = new
> Link("assignLink")
> {
> @Override
> public void onClick() {
>
> ATMInstallsDao.getFromApplicationContext()
>
> .assignTaskToGroup(task.getId(),
>
> "InstallsTeam");
>
>
> //-------------PLEASE
> HELP WITH THIS BIT---------
>
>
>
> // tell wicket
> that
> we've changed the model so it
> // updates the
> page
>
> //tried.......
>
> //
> modelChanged(); -
> does nothing (the Link objects model??)
> //
> DataView.this.modelChanged(); - does not compile no DataView
> parent???
> // This works
> but is not
> really the most efficient!.....
>
> getRequestCycle().setResponsePage(new UserTasksPage(userName));
>
>
>
>
>
> //------------------------------------------------
>
> }
> };
> assignLink.add(new
> Label("assignLinkLabel",
> "assign to
> group"));
> item.add(assignLink);
>
>
> }
> };
>
>
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