Now some more useful feedback: a question.
Does WFS have the concept of a fallback value like Symbology Encoding? It
troubles me that we don't have a way to capturing this as part of FilterFactory
(as even correctly created functions require a fallback value when evaluating
in contexts outside their comfort zone).
--
Jody Garnett
On Friday, 20 May 2011 at 10:04 AM, Jody Garnett wrote:
> I can provide feedback on filterfactory2.
>
> The idea is that FilterFactory limits you to only making perfectly valid
> filters. So any work you are doing for WFS2.0 will probably end up here.
> FilterFactory2 is for our own extensions (such as allowing expressions for
> the left hand side of a spatial filter).
>
> The difference is explained here:
> - http://docs.geotools.org/latest/userguide/library/opengis/filter.html
>
> FilterFactory respects that the left hand side must be a
> PropertyNameExpression:
> FilterFactory ff = CommonFactoryFinder.getFilterFactory(
> GeoTools.getDefaultHints ); Filter filter = ff.propertyLessThan( ff.property(
> "AGE"), ff.literal( 12 ) );
>
> FilterFactory2 does not:
> FilterFactory2 ff = CommonFactoryFinder.getFilterFactory2(
> GeoTools.getDefaultHints ); Filter filter = ff.contains( ff.property(
> "THE_GEOM"), ff.literal( geometry ) );
>
> It is very possible in response to WFS 2.0 that we will need to move some
> FilterFactory2 methods over to FilterFactory.
>
> Finally it is the strong recommendation of mbedward that we stop the madness;
> combine the two things into FilterFactory (and just use javadocs to indicate
> our own variations from the standard). I would totally support that :D
>
>
>
> --
> Jody Garnett
>
> On Friday, 20 May 2011 at 7:00 AM, Justin Deoliveira wrote:
> > Hi all,
> >
> > I have whipped up a proposal for the functionName changes that have been
> > discussed on the list over the past few weeks.
> >
> > http://docs.codehaus.org/display/GEOTOOLS/Detailed+Argument+and+Return+Info+for+FunctionName
> >
> >
> > Feedback welcome.
> >
> > One thing I was sure about was how to update FilterFactory. IT seems all
> > new methods are put into FilterFactory2? Do they ever get pushed back up?
> > Not sure what the policy is here.
> >
> > Thanks.
> >
> > -Justin
> >
> > --
> > Justin Deoliveira
> > OpenGeo - http://opengeo.org
> > Enterprise support for open source geospatial.
> >
> > ------------------------------------------------------------------------------
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>
------------------------------------------------------------------------------
What Every C/C++ and Fortran developer Should Know!
Read this article and learn how Intel has extended the reach of its
next-generation tools to help Windows* and Linux* C/C++ and Fortran
developers boost performance applications - including clusters.
http://p.sf.net/sfu/intel-dev2devmay
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