GeomFromGeoHash Class Reference

Returns a geometry from a GeoHash String. More...

Inheritance diagram for GeomFromGeoHash:

Collaboration diagram for GeomFromGeoHash:

Public Member Functions
Geometry	construct (String input)
String	getURI ()
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException

Detailed Description

Returns a geometry from a GeoHash String.

Member Function Documentation

construct()

Geometry construct

(

String

input

)

Reimplemented from GeometricConstructor.

                                                {
                GeoHash hash=GeoHash.fromGeohashString(input);
                Coordinate coord=new Coordinate(hash.getOriginatingPoint().getLatitude(), hash.getOriginatingPoint().getLongitude());
                List<Coordinate> coords=new LinkedList<Coordinate>();
                coords.add(coord);
                return LiteralUtils.createGeometry(coords, "Point", 4326);      
        }

References LiteralUtils.createGeometry().

evaluate()

Value evaluate ( ValueFactory  valueFactory, Value...  args  ) throws ValueExprEvaluationException

inherited

                                                                                                            {
                if (args.length != 1) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 1 arguments, got " + args.length);
                }
                String geomString = args[0].stringValue();
                Geometry result = construct(geomString);
                return valueFactory.createLiteral(WKTDatatype.INSTANCE.unparse(result), WKTDatatype.LiteralIRI);
        }

References GeometricConstructor.construct(), WKTDatatype.INSTANCE, WKTDatatype.LiteralIRI, and WKTDatatype.unparse().

Referenced by GeomFromGeoJSONTest.testGeomFromGeoJSON(), GeomFromTextTest.testGeomFromText(), GeomFromWKBTest.testGeomFromWKB(), MakeLineTest.testMakeLine1(), MakePointTest.testMakePoint1(), MakePointTest.testMakePointXYZ(), PointFromTextTest.testPointFromText(), and PolygonFromTextTest.testPolygonFromText().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_geomFromGeoHash.stringValue();
        }

References POSTGIS.st_geomFromGeoHash.