On Fri, Jun 14, 2013 at 6:22 AM, Andrea Aime
<[email protected]>wrote:
> Hi,
> I'm writing you to start the process to graduate the gt-transform module
> to supported status.
>
> For those that don't know, the gt-transform module provides a way to
> create wrappers around SimpleFeatureSource/SimpleFeatureStore that do alter
> the attributes exposed via:
> * attribute selection
> * attribute renaming
> * creation of new attributes as expressions of other attributes
>
> All of the above is achieved by associating the new set of attributes each
> with a OGC Expression, like in the test cases, see the three methods
> setting up some transformations:
>
>
> https://github.com/geotools/geotools/blob/master/modules/unsupported/transform/src/test/java/org/geotools/data/transform/AbstractTransformTest.java
>
> The module takes care of all needed filter and name transformations, and
> if the transformations are invertible (that is, pretty much just attribute
> rename at the moment) then it also preserves the writability of the
> original SimpleFeatureStore.
>
> The test coverage is good (69%), IP wise there are no issues, wrote all
> the code myself (though I guess I need to add a review.txt in there,
> right?), there are no bug reports in jira.
> There are no docs, but I plan to add a page of docs turning the unit tests
> into examples along with the pull request that will graduate the module.
>
> Ah, the final location is a bit of a mystery... this thing is not a plugin
> in the strict sense, there is no factory and no store, you are supposed to
> call TransformFactory.transform(source, targetName,
> listOfAttributeDefinitions)
> in order to get the transformed source/store.
> As such is more similar to a ReprojectingFeatureCollection than a stand
> alone data store... so... where should it go? Library?
> However, setting up a factory and store is not un-thinkable, but it would
> be a bit odd to have a store whose one of the source params is another
> store...
>
> Any feedback?
>
None except that I think this is a great feature to have.
>
> Cheers
> Andrea
>
>
> --
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>
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--
Justin Deoliveira
OpenGeo - http://opengeo.org
Enterprise support for open source geospatial.
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