Re: [jsr-314-open] Method signatures for event handlers
On Thu, Jan 21, 2010 at 10:15 PM, Cay Horstmann <cay(a)horstmann.com> wrote:
Consulting the specification for f:event (
http://java.sun.com/javaee/javaserverfaces/2.0/docs/pdldocs/facelets/f/ev...),
I find that the signature is required to match public void
listener(javax.faces.event.ComponentSystemEvent event) throws
javax.faces.event.AbortProcessingException.
That's actually too bad. When I do a preRenderView event with viewParams, I
don't need the CSE parameter, and I'd rather not couple my managed bean with
the JSF API. So, it sure would be nice if I had the flexibility of using the
signature public void listener() instead. Mojarra actually lets me do that!
I'm almost certain that we agreed that the event parameter (and exception
signature) were optional. I clearly remember having that discussion. I don't
have it in my archives, but for those that have them, the discussion should
start around Jan 17, 2009.
Thus, I consider this a spec error. The fact that Mojarra implements the
desired behavior is a partial indication that we agreed on it, too.
-Dan
--
Dan Allen
Senior Software Engineer, Red Hat | Author of Seam in Action
Registered Linux User #231597
http://mojavelinux.com
http://mojavelinux.com/seaminaction
http://www.google.com/profiles/dan.j.allen
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