Also, why do you retrieve all tasks? Isn't it more cost efficient to
apply the first/count to the query itself?
Martijn
On 1/18/07, Martijn Dashorst <[EMAIL PROTECTED]> wrote:
> 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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