Hi cleverpig,
You can use @SetupRender or onActivation methods to setup ur page.
There was a long discussion in the mail list about when to use what.
Using the @setuprender on ur page would be as simple as:
@SetupRender
private void loadData() {
this.data=serv.list();
}
2009/9/25 cleverpig <greatclever...@gmail.com>:
> hi,friends!
>
> i got a trouble thing:how to do initialization work when custom
> component was called?
> i mean when i made a custom component which need some parameters,and
> these parameters will be inject in the page that the custom component
> hold on.
>
> such as:
> the custom component class:
> public class DictionarySelect extends AbstractField
> {
> ...
> @Parameter(required=true)
> private List data;
> ...
> }
> the page class:
> public class MyPage{
> @InjectService
> private DictionaryService serv;
> private List data;
> void onPageLoaded(){
> data=serv.list();
> }
> ...
> }
> the tml code:
> <html t:type="layout"
> xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";>
> <t:DictionarySelect t:data="dataFromServ"/>
> </html>
>
> notes:
> the injected serv will load the data variable of DictionarySelect Component.
> When this page is first instantiated,i would call serv's list method
> to assign a list to data variable.
> but i got null exception...
>
> what's the way to prepare data for component which get data from
> page's parameter that depend on inject service?
> --
> cleverpig(Dan)
> Location: Beijing
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