dev@javaserverfaces.java.net

Re: Issue 484 - Is f:subview still needed?

From: Adam Winer <adam.winer_at_oracle.com>
Date: Fri, 02 Feb 2007 12:07:45 -0800

Ryan Lubke said the following on 2/2/07 11:54 AM PT:
> Adam Winer wrote:
>> Is this strictly an issue for tag files, or does it
>> have repercussions for jsp:include?
> jsp:include is handled. We detect it by a servlet required request
> attribute that will
> be present, so it's strictly tag files.
>>
>> I would have thought that a tag file would have a separate
>> JspContext instance from the page in which it is used, but is
>> that not necessarily so?
> Right, it does. I kicked some ideas around with detecting the
> the fact that a Tag file will have a clean page scope, but they didn't
> quite work out.
>
> I guess one could just track each PageContext and for each new one we
> encounter mundge the IDs appropriately....

If we did this, would it obviate the need for
detecting includes via the request attribute?

But I'd be extremely concerned that a JSP environment
might reuse PageContext instances. Given the JSP EG's
(at least past) adoration of object reuse, they might
have gone down this path.

-- Adam

>
>
>>
>>
>> -- Adam
>>
>>
>> Ryan Lubke said the following on 2/2/07 11:32 AM PT:
>>> Hey Folks,
>>>
>>> I'm out of ideas on this one. So far, I've tried to come up with a
>>> portable way to
>>> detect that JSF is executing within the context of a JSP Tag file in
>>> order to handle
>>> the JSP ids, but there doesn't seem to be any way at this point.
>>>
>>> My last entry in the bug led me to believe a potential issue with the
>>> JSP implementation,
>>> but after bringing it up to the JSP spec leads, they state it's a
>>> case of bad wording
>>> and Jasper is doing the right thing.
>>>
>>> So, hopefully someone out here has an idea or two on how we might be
>>> able to
>>> tackle this one, otherwise, the only solution I see is to use f:subview.
>>>
>>> Please review
>>> https://javaserverfaces.dev.java.net/issues/show_bug.cgi?id=484
>>>
>>> Thanks,
>>>
>>> -rl
>>>
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