GeometricModifierGeometryIntegerFunction Class Reference

Inheritance diagram for GeometricModifierGeometryIntegerFunction:

Collaboration diagram for GeometricModifierGeometryIntegerFunction:

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 GeometricModifierGeometryIntegerFunction.relation().

                                                                                                            {
                if (args.length != 3) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 3 arguments, got " + args.length);
                }

                Integer value=Integer.valueOf(args[2].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("Arguments given are not geometry literals");
        }

relation()

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

abstractprotected

Referenced by GeometricModifierGeometryIntegerFunction.evaluate().