On Sun, 2009-03-15 at 13:28 +0000, Johannes Ruthenberg wrote:
> Hi everyone!
>
> First, a big thank you to Cagatay! I was about to agree with Simon that
> f:selectItems couldn't do this (judging from the documentation), but it
> seems that I didn't even try it without the other attributes. I just
> tried it out and this actually works like expected (selectedRoles being
> a Long[] and allRoles a Map<String, Long>):
>
> <h:selectManyCheckbox id="selectedRoles" value="#{myBean.selectedRoles}">
> <f:selectItems value="#{myBean.allRoles}"/>
> </h:selectManyCheckbox>
>
> The same with t:selectItems does not work, even if the documentation
> states that it should. ;-)
Hmm..interesting.
This behaviour of building a list of SelectItems from a Map is actually
implemented in the SelectItemsIterator class.
(1) I'm not sure that this is standard JSF behaviour, ie I am not sure
that code depending on this will run on any JSF implementation other
than MyFaces.
(2) By adding custom Map handing inside the t:selectItems component,
this prevents the SelectItemsIterator functionality from working. The
SelectItemsIterator class never sees that the "value" is of type Map
because the t:selectItems has already replaced the map with a list of
SelectItems it has built itself.
The situation seems really messy to me, but it's not clear what the best
solution would be. I have created a JIRA issue for this:
https://issues.apache.org/jira/browse/TOMAHAWK-1403
Thanks for reporting this Johannes, and sorry you struck such an odd
issue shortly after starting with JSF!
Regards,
Simon
