IsValidDetail Class Reference

Inheritance diagram for IsValidDetail:

Collaboration diagram for IsValidDetail:

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

Member Function Documentation

evaluate()

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

inherited

References LiteralRegistry.getLiteral(), and GeometricStringExportFunction.operation().

                                                                                                            {
                if (args.length != 1) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 1 arguments, got " + args.length);
                }

                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                if(l instanceof VectorLiteral) {
                        Geometry geom=((VectorLiteral)l).read(args[0].stringValue());
                        String result = operation(geom);
                        return valueFactory.createLiteral(result);
                }
                throw new ValueExprEvaluationException("Argument given is not a geometry literal");
                
        }

getURI()

String getURI

(

)

References POSTGIS.st_isValidDetail.

                               {
                return POSTGIS.st_isValidDetail.stringValue();
        }

operation()

String operation

(

Geometry

geom

)

                                               {
            Object[] details = new Object[3];
            IsValidOp validOP = new IsValidOp(geom);
            GeometryFactory fac=new GeometryFactory();
            TopologyValidationError error = validOP.getValidationError();
            if (error != null) {
                details[0] = false ;
                details[1] = error.getMessage();
                details[2] = fac.createPoint(error.getCoordinate());
            } else {
                details[0] = true ;
                details[1] = "Valid Geometry";
            }
            return Arrays.toString(details);
        }