we went with the cheapest variant possible as default. a callback method
doesnt have the memory overhead of holding onto a list, besides since
buttons/links 99% of the time only have a single listener anyways it makes
sense.
if you have a lot of cases where you need more then one listener you can
create a subclass that delegates the call.
-igor
On 8/31/07, Sam Hough <[EMAIL PROTECTED]> wrote:
>
>
> Thanks Eelco,
>
> On a related subject. Why does Wicket get us to do:
> new Button("id") {
> @Override
> public void onSubmit() {
> }
> };
>
> rather than:
> Button b = new Button("id");
> b.addOnSubmit(new SubmitHandler() {
> public void onSubmit(Field f) {
> }
> }};
> ? The latter seems more common elsewhere. Is it taste or something more
> concrete?
>
> I was sulking a bit trying to do:
> final Button a = new Button("a");
> final Button b = new Button("b");
> a. addOnSubmit(new SubmitHandler() {
> public void onSubmit(FIeld f) {
> a.setEnabled(false);
> b.setEnabled(true);
> }
> };
> b.addOnSubmit(new SubmitHandler() {
> public void onSubmit(Field f) {
> a.setEnabled(true);
> b.setEnabled(false);
> }
> };
> Probably me still trying to convert from GWT ;)
>
>
>
>
>
> Eelco Hillenius wrote:
> >
> >> Great. I must have just imagined the anti-pattern comment or got it the
> >> wrong
> >> way around.
> >
> > An anti pattern in Wicket 1.2 would be to keep passing pages in to
> > other pages. One back page is no problem, but a linked list out of
> > them would eat considerable memory. In Wicket 1.3 this is hardly
> > relevant since Johan and Matej optimized the hell out of how pages are
> > serialized.
> >
> > And just in general, keep in mind that everything that can be
> > referenced from components/ a page means it is part of it's state
> > (which might hurt you in a cluster if you over-do it).
> >
> > Eelco
> >
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> >
> >
> >
>
> --
> View this message in context:
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>
>
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