Good point here are the javadocs:
- 
http://docs.geotools.org/latest/javadocs/org/geotools/filter/function/EnvFunction.html

Okay I think I can see how it would work in a code example; for the tutorial we 
would record the "Selection" as a global value then?

-- 
Jody Garnett


On Thursday, 30 June 2011 at 9:01 PM, Michael Bedward wrote:

> On 30 June 2011 20:51, Jody Garnett <jody.garn...@gmail.com 
> (mailto:jody.garn...@gmail.com)> wrote:
> > It is a real thing; I have not sorted out how it works yet so it is not in
> > the docs yet.
> 
> Sigh... and I took so much trouble over the javadocs for it :)
> 
> Michael

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