Dump Class Reference

Inheritance diagram for Dump:

Collaboration diagram for Dump:

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

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

(

)

                               {
                return POSTGIS.st_dump.stringValue();
        }

operation() [1/2]

String operation

(

org.locationtech.jts.geom.Geometry

geom

)

                                                                         {
             List<String> results = new ArrayList<>(geom.getNumGeometries());
             for (int i = 0; i < geom.getNumGeometries(); i++) {

                 Geometry res = geom.getGeometryN(i);
                 String resString = geom.toText();
                 results.add(resString);
             }
             return String.join(" ", results);
        }

operation() [2/2]

abstract String operation ( Geometry  geom )

abstractinherited

Referenced by GeometricStringExportFunction.evaluate().