On 8/11/05, Colin Chalmers <[EMAIL PROTECTED]> wrote:
> 1. I have a couple of managed beans in session scope. After making the
> purchase definate I want to remove them, or reset them in session. Is
> there a recomended way of doing this or it simply, find them in the
> context and invoke a reset method clearing all data in that object? Or
> can I remove the object from facescontext in some way?
You can look at using request-scoped beans and the <x:saveState> component.
The x:saveState component will preserve a target (like your bean) so
long as the x:saveState component specification for that bean appears
on a page. As soon as your user navigates to a page without such an
x:saveState component, it'll be lost.
> 2. I have to show data from several different lists in tabular format,
> in one table to be exact. I tried 3 seperate dataTables under each other
> which shows the correct data but looks ugly. Something along the lines
> of panelgrid with embedded datatable would probably be appropriate but
> is not giving correct result. I need some help on this one
Have your dataTable binding point to a getter method that combines the
three lists into one.
> 3. Is there some way to show a datatable only if the list data being
> provided is greater than zero or does one have to revert to JSTL to
> solve this, checking for > 0 in an if statement before writing the table?
Use the rendered attribute. ie, rendered="#{listDataIsNonEmpty}"
> 4. Is there any way to pass arguments to methods being invoked? I read
> somewhere that this was a restriction in EL and was not possible. Is
> that the case?
There's a lot of ugly workarounds for this, but there's no direct
support for it.
You can also use an alternate EL.
