What about @IgnoreInvalidContext anntation instead of @MatchExtraPath?
Wouldn't it do the job? If the context is invalid, we check if
@IgnoreInvalidContext is present. If so, the exception is caught and no-args
activation method is invoked.

On Mon, Apr 4, 2011 at 10:02 PM, Howard Lewis Ship <[email protected]> wrote:

> I think we're definitely seeing some different concerns within
> Tapestry conflicting with each other.
>
> On Mon, Apr 4, 2011 at 12:47 PM, Igor Drobiazko
> <[email protected]> wrote:
> > Tapestry is known for taking over the plumbing work and this solution
> > somehow goes against this philosophy. In most cases a user don't have to
> > know how the context value is converted from string to a server-side
> object
> > and vice versa. Providing @MetchExtraPath annotationthe user adds some
> kind
> > of redundancy.
> >
> > On Mon, Apr 4, 2011 at 7:29 PM, Howard Lewis Ship <[email protected]>
> wrote:
> >
> >> Just had a thought (hopefully original) about dealing with the issue
> >> of Index pages and bad paths.
> >>
> >> This comes up with Tapestry often enough; an errant entry in a CSS
> >> file, or a manually mangled URL, and an Index page is activated with
> >> an invalid page activation context, resulting in an exception.
> >>
> >> But it just occurred to me that in most cases, we will know what the
> >> page activation context will look like (for example, a series of
> >> digits is most likely) ... something that can be expressed as a
> >> regular expression.
> >>
> >> So how about something like:
> >>
> >> @MatchExtraPath("\\d+")
> >> public class Index
> >> {
> >> }
> >>
> >> This would identify the page activation context (the extra path) as
> >> needed to match the pattern \d+  (a series of at least one digit).
> >>
> >> So, once the page is identified, the PageDispatcher (contributed to
> >> the MasterDispatcher chain of command) can examine the page to see if
> >> it has the @MatchExtraPath and, if so, continue searching if the extra
> >> path does not match.
> >>
> >> --
> >> Howard M. Lewis Ship
> >>
> >> Creator of Apache Tapestry
> >>
> >> The source for Tapestry training, mentoring and support. Contact me to
> >> learn how I can get you up and productive in Tapestry fast!
> >>
> >> (971) 678-5210
> >> http://howardlewisship.com
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: [email protected]
> >> For additional commands, e-mail: [email protected]
> >>
> >>
> >
> >
> > --
> > Best regards,
> >
> > Igor Drobiazko
> > http://tapestry5.de
> >
>
>
>
> --
> Howard M. Lewis Ship
>
> Creator of Apache Tapestry
>
> The source for Tapestry training, mentoring and support. Contact me to
> learn how I can get you up and productive in Tapestry fast!
>
> (971) 678-5210
> http://howardlewisship.com
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
>
>


-- 
Best regards,

Igor Drobiazko
http://tapestry5.de

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