That make sense.
I assume that these checks are in order to provide a friendlier error
message rather than an NPE or similar during actual SLD evaluation? In
that case there may be some leeway there... up to the point of disabling
checks if the SLD contains an RT (not that this is ideal, but it's a
fallback).
I did hack around this by creating a SQLView with a dummy column named
"count", but obviously (a) this is painful and (b) won't work for non-DB
layers.
If I get a chance I'll have a look at the code to see what it would take.
I'll file a ticket as well.
On Wed, Mar 21, 2012 at 11:59 PM, Andrea Aime
<andrea.a...@geo-solutions.it>wrote:
> On Thu, Mar 22, 2012 at 1:06 AM, Martin Davis <mda...@opengeo.org> wrote:
>
>> I am developing a Rendering Transformation which takes a point
>> featuretype as input, and output a new transformed point featuretype. The
>> new featuretype has an attribute named "count". I want to have a
>> LabelSymbolizer in the SLD to display this count value on each point. The
>> problem is, the SLD fails during rendering because the "count" attribute is
>> not in the input featuretype (presumably due to some sanity checks in the
>> pipeline).
>>
>> Any suggestions for hacking around this?
>>
>
> Hmm... moving the attribute checks after the transformation is done,
> against the
> resulting feature type, seems the only option
>
> Cheers
> Andrea
>
>
> --
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>
--
Martin Davis
OpenGeo - http://opengeo.org
Expert service straight from the developers.
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