Hi Jody,
Thanks for the response.

The code buildEnvelopeAggregates doesn’t look right to me. If the idea behind 
it is to capture all geometry columns , shouldn’t SP_GEOMETRY2 be included in 
the sql string creation?

Is there anything on the java side that I can do to get the result I want – ie 
modify the Query()/Filter object/s, without resorting to a db specific 
implementation?

Regards,

David Walden      Software Engineer
Pitney Bowes Business Insight (formerly Encom)
355 Newcastle Street | Northbridge, WA 6003 Australia
Phone 61 8 9436 8707 | Main 61 8 9226 0101
Fax 61 8 9226 0102 [email protected]
www.pbbusinessinsight.com.au<http://www.pbbusinessinsight.com.au>

From: Jody Garnett [mailto:[email protected]]
Sent: Saturday, 4 June 2011 7:19 PM
To: David Walden
Cc: [email protected]
Subject: Re: [Geotools-devel] Retrieving bounds for multiple geometries


I am guessing from what I have seen from the code, that the calculated bounds 
should include all geometry columns in the result. Is this correct?
That is the intension; the "default" geometry is also supposed to represent the 
feature in this respect; often the default geometry can be something like a 
city area; and a secondary column be a point location representing the city 
centre.

In the implementation (on the java side) both FeatureImpl and SimpleFeatureImpl 
check all the values producing a bounds of the result. The feature data 
structure can also store the bounds - if your database offers a data structure 
like an index which has this information already.

Is there anything I can do to include SP_GEOMETRY2 in the bounds calculation?
I think you would need to look at the "dialect" class for sql server in the 
code base. I expect you could modify it to query more than one geometry; and 
possibly have it look at the  FeatureType first to check which geometry columns 
to ask for.



Thanks for any help.



Regards

David


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