i think what you need is onbeforerender() and not oninintialize, before
rendering visibility is determined( if curious check the source in
component#internalbeforer()) ,
also i am assuming when you will create/add 100 labels,you will use a
repeater like dataview/listview which creates and adds items in
onbeforerender so if your repeater is not visible, the items/children (and
your labels) will not be created/rendered ...
On Mon, Dec 16, 2013 at 7:26 PM, Decebal Suiu <decebal.s...@asf.ro> wrote:
> Hi
>
> First, the scenario (a simplified version):
> I have a XPage (extends WebPage) and in the constructor of this page I want
> to add a YPanel (extends Panel) but depending on a condition.
>
> if (condiiton) {
> add(new YPanel("panel"));
> } else {
> add(new WebMarkupContainer("panel").setVisible(false));
> }
>
> In fact my scneario is a little complicated, with four children (a CartPage
> that contains EmptyLabel, CartPanel, LoginPanel, CheckputPanel) and a
> compund condition (isEmptyCart, isUserLogged) and in this situation my code
> is verbose and a little spaghetti.
>
> The code above resolves my scenario but in my opinion is more readable only
> a single line
>
> add(new YPanel("panel").setVisible(condition));
>
> The solution with a single line is more readable but it has an impediment.
> For example if in YPanel I want to add 100 labels (hypothetically), I
> created 100 label only to add nothing if the condition is not satisfied :)
>
> The solution is to have a slim constructor for YPanel and to add the
> children in a method (something like onInitialize) that depends on
> component
> visibility. I want something like "I know that this component is invisible
> so don't bother to create the children".
>
> I know about the request cycle (not in details) and that it's impossible
> for
> now, I know that my "issue" is a philosophical issue but maybe someone has
> a
> good question.
>
> Best regards,
> Decebal
>
>
>
> --
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--
regards,
Vineet Semwal
