Nice
Eelco
On 3/2/06, Ramnivas Laddad <[EMAIL PROTECTED]> wrote:
> Of course, for me, an enforcement aspect does the job :-).
>
> The following version reflects my current understanding, but over time a
> more general purpose selection logic (the pointcut) and more enforcements
> can be added.
>
> package com.aspectivity.wicket.policyEnforcement;
>
> import wicket.Component;
> import wicket.markup.html.list.ListView;
> import wicket.behavior.IBehavior;
> import wicket.behavior.AbstractAjaxBehavior;
>
> public aspect BehaviorPolicyEnforcementAspect {
> before() : call(Component Component.add(IBehavior))
> && target(ListView)
> && args(AbstractAjaxBehavior) {
> throw new IllegalArgumentException(
> "Adding AJAX behaviors to listview will have no effect."
> + "Consider wrapping the listview in a WebMarkupContainer "
> + "and adding the behavior to it instead");
> }
> }
>
> -Ramnivas
>
>
> Igor Vaynberg wrote:
> this would be a pain to maintain. we cant just lock out /all/ behaviors from
> being added to listview, some might make sense.
>
> -Igor
>
>
>
> On 3/2/06, Riyad Kalla <[EMAIL PROTECTED]> wrote:
> > I second this request (about runtime notification of invalid states)
> >
> > On 3/2/06, Ramnivas Laddad <[EMAIL PROTECTED]> wrote:
> > > Thanks, Igor. It works now.
> > >
> > > Would it be possible to throw an exception when someone tries to add an
> > > unacceptable Behavior such as AjaxSelfUpdatingTimerBehavior to a
> listview
> > > (or any other class doesn't produce any markup itself).
> > >
> > > -Ramnivas
> > >
> > >
> > > Igor Vaynberg wrote:
> > > you cannot update a listview itself directly because it does not produce
> any
> > > markup itself. you need to put it into a webmarkupcontainer and attach
> the
> > > update behavior to that.
> > >
> > > WebMarkupContainer wmc=new WebMarkupContainer("wmc");
> > > wmcv
> > > add(wmc);
> > > wmc.add(new ListView(........
> > > wmc.add(new AjaxSelfUpdatingBehavio.....
> > >
> > > and in markup <span wicket:id="wmc">...listview</span>
> > >
> > > -Igor
> > >
> > >
> > >
> > > On 3/2/06, Ramnivas Laddad <[EMAIL PROTECTED]> wrote:
> > > > Hi,
> > > >
> > > > I have a ListView with a dynamic model. I am trying to update the view
> > > > using AjaxSelfUpdatingTimerBehavior. It doesn't seem to be working,
> > > > however (with snapshot version 20060227-0200). It seems that the
> > > > AjaxSelfUpdatingTimerBehavior.onTimer() methods gets
> > > called only once.
> > > >
> > > > The following code (a much simplified version of the real code)
> > > > illustrates the problem.
> > > >
> > > > -Ramnivas
> > > >
> > > > public class AJAXListHome extends WebPage {
> > > > public AJAXListHome() {
> > > > ListView testListView = new TestListView("dates");
> > > > add(testListView);
> > > > testListView.add(new
> > > > AjaxSelfUpdatingTimerBehavior( Duration.seconds(5)));
> > > > }
> > > > }
> > > >
> > > > class TestListView extends ListView {
> > > > public TestListView(String id) {
> > > > super(id);
> > > > }
> > > >
> > > > public IModel getModel() {
> > > > List<String> list = new ArrayList<String>();
> > > > list.add(new Date().toString());
> > > > return new Model((Serializable)list);
> > > > }
> > > >
> > > > @Override
> > > > protected void populateItem(ListItem item) {
> > > > String date = (String)item.getModelObject();
> > > > item.add(new Label("date", date));
> > > > }
> > > > }
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
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