I would expect that <f:viewParam> isn't required for <f:viewAction> to work.
On Thu, Dec 13, 2012 at 7:18 PM, Leonardo Uribe <lu4242_at_gmail.com> wrote:
> Hi
>
> Implementing this feature in MyFaces, I notice that to make f:viewAction
> work as expected, you need to set at least one f:viewParam in to the
> page.
>
> This happens because JSF 2.2 section 2.2.1 says this:
>
> "... Call ViewMetadata.getViewParameters(). If the result is a non-empty
> Collection, do not call facesContext.renderResponse() ..."
>
> The idea is simple: only execute the full jsf lifecycle if required.
>
> This leads to an inconsistency. Or the documentaton of f:viewAction does
> not mention the requerimento of f:viewParam to work, or section 2.2.1
> should be updated to ensure do not call facesContext.renderResponse
> when a f:viewAction is found.
>
> One way or another, a change in the spec/taglibdoc is necessary.
>
> regards,
>
> Leonardo Uribe
>