GeometricDoubleModifierIntegerFunction Class Reference

Inheritance diagram for GeometricDoubleModifierIntegerFunction:

Collaboration diagram for GeometricDoubleModifierIntegerFunction:

Public Member Functions
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException

Protected Member Functions
abstract Geometry	relation (Geometry geom, Geometry geom2, Integer value)

Member Function Documentation

evaluate()

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

References LiteralRegistry.getLiteral(), and GeometricDoubleModifierIntegerFunction.relation().

                                                                                                                    {
                        if (args.length != 3) {
                                throw new ValueExprEvaluationException(getURI() + " requires exactly 3 arguments, got " + args.length);
                        }               
                        
                        Integer value=Integer.valueOf(args[1].stringValue());
                        LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                        LiteralType l2=LiteralRegistry.getLiteral(((Literal)args[1]).getDatatype().toString());
                        if(l instanceof VectorLiteral && l2 instanceof VectorLiteral) {
                                Geometry geom=((VectorLiteral)l).read(args[0].stringValue());
                                Geometry geom2=((VectorLiteral)l2).read(args[1].stringValue());
                                Geometry result = relation(geom,geom2,value);
                                return valueFactory.createLiteral(((VectorLiteral) l).unparse(result),((Literal)args[0]).getDatatype());
                        }
                        throw new ValueExprEvaluationException("Argument given is not a geometry literal");
                }

relation()

abstract Geometry relation ( Geometry  geom, Geometry  geom2, Integer  value  )

abstractprotected

Referenced by GeometricDoubleModifierIntegerFunction.evaluate().