Support null values as shapelib does
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Key: GEOT-3204
URL: http://jira.codehaus.org/browse/GEOT-3204
Project: GeoTools
Issue Type: Improvement
Components: data shapefile
Affects Versions: 2.6.1
Environment: All
Reporter: Eric Engle
Assignee: Andrea Aime
Attachments: DbaseFileReader.diff
The shapefile plugin has a decent enough dbf reader included. However, it does
not handle null values. This is not necessarily bad, since the shapefile
standard does not discuss the dbf contents in depth, but common C libraries
(including the one used by ogr2ogr and postgis) do handle null values. For one
example see http://shapelib.maptools.org. This thus presents a compatibility
problem, if not against the standard, then merely against standard practice (at
least for our use of shapefiles.)
I have attached a patch that adds support to the dbf reader in the shapefile
plugin in geotools 2.6.1. I would love to see this included in a future release
of geotools, so please let me know if I can improve it in any way.
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