Yes, it would be an interim solution specific to the GeoMesa data store
until something like what you described is available. I'd be happy to
contribute to that effort. What's the process for suggesting an
improvement proposal?
On Sun, Apr 13, 2014 at 3:25 AM, Andrea Aime
<[email protected]>wrote:
> On Sat, Apr 12, 2014 at 9:08 PM, Anthony F <[email protected]> wrote:
>
>> I like the Transformation process/api quite a lot too. So I think a
>> reasonable approach to implementing this would be to intercept the Query in
>> the FeatureSource.getFeatures(Query) method and check if the listed
>> properties are Definitions/Transformations. If they are then rewrite the
>> Query and process the transformations in the native optimal manner. The
>> only thing I don't like is that the transformation has to be decoded from
>> string form rather than being passed in as a data structure. See any
>> obvious problems with this approach? Any other recommendations?
>>
>
> That would be data store specific, that is, a custom convention that works
> in your store only, but it should be workable.
>
> The only other option I can think of would be to extend Query to allow
> property to be (as a third choice, comparing to the existing String and
> PropertyName)
> a full fledged Expression, would be nicer in terms of clarity of what
> you're asking, yet basically no store would support that out of the box
> (although a pure in memory
> implementation would not be _that_ hard to add, for example, by folding on
> the fly a transforming feature source on top
> of the normal result).
>
> This would be an API change, so a format improvement proposal with voting
> would be required.
>
> Cheers
> Andrea
>
>
> --
> ==
> Meet us at GEO Business 2014! in London! Visit http://goo.gl/fES3aK
> for more information.
> ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313
> fax: +39 0584 1660272
> mob: +39 339 8844549
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
> -------------------------------------------------------
>
------------------------------------------------------------------------------
Put Bad Developers to Shame
Dominate Development with Jenkins Continuous Integration
Continuously Automate Build, Test & Deployment
Start a new project now. Try Jenkins in the cloud.
http://p.sf.net/sfu/13600_Cloudbees
_______________________________________________
GeoTools-Devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/geotools-devel
