/geodb

Spatial database bindings for Java.

Primary LanguageJavaMIT LicenseMIT

Introducing GeoDB

GeoDB is a spatial extension of H2, the Java SQL database. GeoDB utilizes the JTS library as its geometry engine and the Hatbox library for spatial indexing support.

Quickstart

  • Download GeoDB

  • Unzip the geodb-0.9-app.zip file

  • Update the PATH environment variable to include geodb-0.9/bin

  • Run the @geodb@ command:

      % geodb foo

  • Initialize the spatial database:

      @h2> CREATE ALIAS InitGeoDB for "geodb.GeoDB.InitGeoDB";
  @h2> CALL InitGeoDB();

  • Create a spatial table:

      @h2> CREATE TABLE spatial (id INT AUTO_INCREMENT PRIMARY KEY, geom BLOB);

  • Create some spatial data:

      @h2> INSERT INTO spatial (geom) VALUES (ST_GeomFromText('POINT(-5 -5)', 4326));
  @h2> INSERT INTO spatial (geom) VALUES (ST_GeomFromText('POINT(0 0)', 4326));
  @h2> INSERT INTO spatial (geom) VALUES (ST_GeomFromText('POINT(5 5)', 4326));
  
  @h2> SELECT ST_AsText(ST_Buffer(geom, 10)) as buffer FROM spatial;

  • Create a spatial index

      @h2> CALL CreateSpatialIndex(null, 'SPATIAL', 'GEOM', '4326');

  • Perform a spatial query

      @h2> SELECT ST_AsText(geom) FROM spatial WHERE  id IN (SELECT CAST(HATBOX_JOIN_ID AS INT) FROM HATBOX_MBR_INTERSECTS_ENV('PUBLIC', 'SPATIAL', -2, 2, -2, 2));

License

GeoDB is licensed under the MIT license.

More Information

General discussion takes place on the geodb google group. If you have any questions or comments please post a message there.