On 2013-07-24 11:39, Nicolas Fortin (OrbisGIS) wrote:
I'm using the H2 Api in order to add a TableEngine linked with .dbf
files and .shp files <http://fr.wikipedia.org/wiki/Shapefile> .
The dbf TableEngine is here
https://github.com/nicolas-f/H2GIS/tree/shapeDriver/h2drivers/src/main/java/org/h2gis/drivers/dbf
Currently it is a read only table engine. It uses the table engine
parameters written by Noel. It is able to read several dbf encoding, I
wrote a unit test with Chinese DBF.
Very very nice. Good work!
I am currently looking for index creation. May be there is a way to
use the PageBtreeIndex, but I not overload RegularTable.
I don't think that's going to work very well, PageBtreeIndex is very
much designed to index things that are contained inside our own files.
You could, on the other hand, probably use TreeIndex, because that is
purely an in-memory index.
Otherwise I suggest that you build an importer i.e. something that can
read DBF files into H2, like:
http://h2database.com/html/functions.html#csvread
Which you could build using user-defined functions e.g. see the section
called "Functions Returning a Result Set"
http://h2database.com/html/features.html#user_defined_functions
Regards, Noel
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