Hello,
In geotoolkit we made a query/session api, with joint support, It uses :
- OGC Filter Encoding specification,
- SQL/MM(st_...) are just a a set of functions which are the exact same
as those defined in OGC Filter.
- A derivate of JSR-283 : Java Content Repository for queries and
sessions but adapted to Features
http://www.opengeospatial.org/standards/filter
This specification is already transposed in Java in the GeoAPI project :
http://www.geoapi.org/snapshot/pending/index.html
in package : org.opengis.filter
I don't know much about apache zest, but a more pragmatic approach would
be to get closer to Apache JackRabbit which is JCR compliant and has a
lot of data connectors.
Johann Sorel
[email protected]
On 03/06/2015 17:12, [email protected] wrote:
Most excellent, Dr. Mattmann! @sis, we should definitely collaborate with @zest
on this one. If they are implementing simple query functionality, maybe they
can take advantage of the work Marc has already done and also use the
projection support Martin has been committing.
Thoughts?
Adam
Sent from my iPhone
On Jun 3, 2015, at 11:00 AM, Mattmann, Chris A (3980)
<[email protected]> wrote:
Maybe this is a good integration point for sis.apache.org?
CC’ing the Apache SIS list for visibility
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Chris Mattmann, Ph.D.
Chief Architect
Instrument Software and Science Data Systems Section (398)
NASA Jet Propulsion Laboratory Pasadena, CA 91109 USA
Office: 168-519, Mailstop: 168-527
Email: [email protected]
WWW: http://sunset.usc.edu/~mattmann/
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Adjunct Associate Professor, Computer Science Department
University of Southern California, Los Angeles, CA 90089 USA
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-----Original Message-----
From: Jiri Jetmar <[email protected]>
Reply-To: "[email protected]" <[email protected]>
Date: Wednesday, June 3, 2015 at 7:45 AM
To: "[email protected]" <[email protected]>
Subject: Re: GeoSpatial Query support
Hi Niclas,
this ST_XX follows the http://en.wikipedia.org/wiki/DE-9IM and
http://en.wikipedia.org/wiki/Simple_Features standards that are indeed
"SQL" related. I used this expression to be similar with e.g. PostGIS,
means when someone knows how to use spatial expressions on PostGIS,
he should be able to understand the Apache Zest approach.
But clearly I can "lowercase" the ST_Xx expressions in the code.
Cheers,
jj
2015-06-03 16:22 GMT+02:00 Niclas Hedhman <[email protected]>:
Jiri,
There is one thing that bothers me; ST_Within and similar doesn't follow
the Java convention at all. I have researched and seen that many DBs
uses
this, but don't you think we should lower case st_ instead for methods?
Cheers
--
Niclas Hedhman, Software Developer
http://zest.apache.org - New Energy for Java
