GeomFromGeoHash Class Reference

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

Member Function Documentation

construct()

Geometry construct

(

String

input

)

References LiteralUtils.createGeometry().

                                                {
                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);      
        }

evaluate()

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

inherited

References GeometricConstructor.construct(), and LiteralRegistry.getLiteral().

                                                                                                            {
                if (args.length != 1) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 1 arguments, got " + args.length);
                }
                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                String geomString = args[0].stringValue();
                Geometry result = construct(geomString);
                return valueFactory.createLiteral(((VectorLiteral) l).unparse(result),((Literal)args[0]).getDatatype());
        }

getURI()

String getURI

(

)

References POSTGIS.st_geomFromGeoHash.

                               {
                return POSTGIS.st_geomFromGeoHash.stringValue();
        }