GeometricStringExportIntegerFunction Class Reference

Inheritance diagram for GeometricStringExportIntegerFunction:

Collaboration diagram for GeometricStringExportIntegerFunction:

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

Member Function Documentation

evaluate()

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

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

                                                                                                            {
                if (args.length != 2) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 2 arguments, got " + args.length);
                }

                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                Integer value=Integer.valueOf(args[1].stringValue());
                if(l instanceof VectorLiteral) {
                        Geometry geom=((VectorLiteral)l).read(args[0].stringValue());
                        String result = operation(geom,value);
                        return valueFactory.createLiteral(result);
                }
                throw new ValueExprEvaluationException("Argument given is not a geometry literal");
                
        }

operation()

abstract String operation ( Geometry  geom, Integer  value  )

abstract

Referenced by GeometricStringExportIntegerFunction.evaluate().