So, as long as I don't make something final, am I alright? For
example, how about not using an inner class:
final PageableListView list = new PageableListView("rows", data, 10)
{
public void populateItem(ListItem listItem)
{
MyObject value = (MyObject) listItem.getModelObject();
listItem.add(new Label("name", value.getName()));
}
};
It looks to me here like the reference to the "name" String will live
on between requests, but that the object itself and all other
properties should get garbage collected. Is that right?
On 6/19/05, Martijn Dashorst <[EMAIL PROTECTED]> wrote:
> The problem is that populateItem() is called at render time, and that
> the onClick() is called when you have been to the client and are
> processing the component listener. I have falled into this trap myself,
> and I can only advise you to use the following code, which is a lot more
> safer in any context:
>
> final PageableListView list = new PageableListView("rows", data, 10)
> {
> public void populateItem(ListItem listItem)
> {
> listItem.add(new Link("sjs") {
> public void onClick() {
> MyObject value = (MyObject) getParent().getModelObject();
> System.out.println(value.getName());
> }
> }
> };
>
> Note that all final keywords have disappeared and no hidden magic is
> remaining on keeping references to object between render and handling time.
>
> Martijn
>
>
> Phil Kulak wrote:
>
> >Maybe it's just late, but I can't seem to answer this question myself.
> >Will each model object in my list exist after the request has finished
> >with the following code, assuming that the list is wrapped in a
> >detachable model:
> >
> >final PageableListView list = new PageableListView("rows", data, 10)
> >{
> > public void populateItem(final ListItem listItem)
> > {
> > final MyObject value = (MyObject) listItem.getModelObject();
> > listItem.add(new Link("sjs") {
> > public void onClick() {
> > System.out.println(value.getName());
> > }
> > });
> > }
> >};
> >
> >or how about this:
> >
> >final PageableListView list = new PageableListView("rows", data, 10)
> >{
> > public void populateItem(final ListItem listItem)
> > {
> > final MyObject value = (MyObject) listItem.getModelObject();
> > final String name = value.getName();
> >
> > listItem.add(new Link("sjs") {
> > public void onClick() {
> > System.out.println(name);
> > }
> > });
> > }
> >};
> >
> >
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