"When myBean.myModel.myOptions is invoked the first time, I do some lazy
initialization, this might cause errors..."
I would recommend that you load this data in the on load method of your
page. This way, if it fails, you can handle the error in any way you want,
including redirecting to an error page. Use one of these technologies:
1) JBoss-Seam. Set the action to run in the pages.xml file. Example:
<page view-id="/index.xhtml"
action="#{welcomeBean.onLoad}" />
2) On-load from jsf-comp:
http://jsf-comp.sourceforge.net/components/onload/index.html
3) or use Shale (I have no experience with this one):
http://shale.apache.org/shale-view/index.html
-Andrew
On 12/11/06, Martin Grotzke <[EMAIL PROTECTED]> wrote:
On Mon, 2006-12-11 at 10:29 -0500, Simon Lessard wrote:
> Hello Martin,
>
> Can you provide a mopre explicit example of the use case please?
Sorry for the few words, if you think about a problem for several days
to you it seems just too clear ;)
What I have is a datatable in a template with the detailStamp facet:
<table jsfc="t:dataTable"
...
value="#{myBean.myModel}"
var="myItem"
varDetailToggler="detailToggler">
... some columns ...
<span jsfc="f:facet" name="detailStamp">
<ui:include src="itemdetails.xhtml">
<ui:param name="item" value="#{myItem}"/>
</ui:include>
</span>
</table>
The itemdetails.xhtml displays details to the item, e.g. it iterates
over some detail options like the following:
<ui:repeat var="option" value="#{item.myOptions}">
#{option.description}
</ui:repeat>
So the the myBean.myModel.myOptions method is requested when the
detailStamp
is displayed for one item, this method is invoked when rendering happens.
When myBean.myModel.myOptions is invoked the first time, I do some lazy
initialization, this might cause errors...
I do not see how I could do the processing in the invoke application,
because
the detailStamp is shown via HtmlDataTable.toggleDetail, which is invoked
during invoke-application, but there's no possibility of specifying a
listener
that is invoked when toggleDetail is invoked...
I hope this clarifies the problem a little bit, if s.th. is missing please
let me know!
Thanx a lot,
cheers,
Martin
> Why can't you do the processing in the invoke application phase?
> Without more details, all I could suggest is to use a render response
> phase listener and add your logic in the beforePhase method.
>
>
> Regards,
>
> ~ Simon
>
> On 12/11/06, Martin Grotzke <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> I have a case where I perform some logic during the
> RENDER_RESPONSE
> phase where an error might occurs and I want to display some
> error
> message - which is unfortunately not displayed directly. But
> with the
> next request/response the error message is displayed. I asume
> that this
> is the case because the h:messages component is already
> rendered - so
> the behavior should basically be correct.
>
> Do you have any suggestions how to handle this?
>
> The concrete case is when the details of a dataTable (facet
> detailStamp)
> are displayed - just comes into my mind to use a
> CustomHtmlDataTable
> component that overrides the toggleDetail method... What do
> you think?
>
> Thanx in advance,
> cheers,
> Martin
>
>
>
>
>
>
--
Martin Grotzke
http://www.javakaffee.de/blog/
