When you get back the feature collection of those things "near" to A; 
you can call the Collection_Max function on the featurecollection 
directly; this is way faster (and may be optimzied into SQL if your 
datastore is backed by SQL):

- 
http://docs.codehaus.org/display/GEOTDOC/10+FeatureCollection+Aggregate+Functions

Cheers,
Jody

Gabriella Turek wrote:
> I have two shape files, call them A and B. I need to:
> (1) find out the features in B that are "near" to each feature in A.
> (2) Interrogate an attribute value of these "near" features and pick the 
> highest value.
>
> I actually figured out how to do it, but I don't think I am doing it "right", 
> i.e. using all the tools
> at my disposal.
>
> My steps are:
> (1) creat up geometry filter to find features in B close to A
> (2) loop thru each feature in A to find these "near" B features
> (3) when one is found, interrogate attribute value and establish if it's a 
> new max
>
> I get the nagging feeling that I dont' need to do this looping and that - 
> moreover - I can 
> have yet another filter which looks for my max value. I've tried a few things 
> with little success.
> Any help will be greatly appreciated.
> Gaby
>
>
>
> ***************************************************************
> **     Gabriella Turek               [EMAIL PROTECTED]      **
> ** National Institute of Water & Atmospheric Research (NIWA) **
> ** PO Box 8602 Christchurch New Zealand    +64-3-343-8067    **
> ***************************************************************
>
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