Intersection Class Reference

Inheritance diagram for Intersection:

Collaboration diagram for Intersection:

Public Member Functions
String	getURI ()
Geometry	relation (Value v1, Value v2)
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException

Static Public Member Functions
static Boolean	vectorOrRaster (Literal lit)
static Literal	getLiteral (Function func, Value v) throws ValueExprEvaluationException

Static Public Attributes
static Set< String >	rasterLiteralURIs =new TreeSet<String>()
static Set< String >	vectorLiteralURIs =new TreeSet<String>()

Member Function Documentation

evaluate()

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

inherited

                                                                                                            {
                // TODO Auto-generated method stub
                return null;
        }

getLiteral()

static Literal getLiteral ( Function  func, Value  v  ) throws ValueExprEvaluationException

staticinherited

                                                                                                     {
                if (!(v instanceof Literal)) {
                        throw new ValueExprEvaluationException("Invalid argument for " + func.getURI() + ": " + v);
                }
                Literal lit = (Literal) v;
                return lit;
        }

Referenced by Intersection.relation().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_rast_Intersection.stringValue();
        }

References POSTGIS.st_rast_Intersection.

relation()

Geometry relation	(	Value	v1,
		Value	v2
	)

Reimplemented from RasterVectorRelationFunction.

                                                     {
                Literal lit1=getLiteral(this, v1);
                Literal lit2=getLiteral(this, v2);
                Boolean type=vectorOrRaster(getLiteral(this, v1));
                Boolean type2=vectorOrRaster(getLiteral(this, v2));
                if(type==null || type2==null) {
                        return null;
                }else if(type && type2) {
                        VectorLiteral vec1=(VectorLiteral) LiteralRegistry.getLiteral(lit1.getDatatype().toString());
                        VectorLiteral vec2=(VectorLiteral) LiteralRegistry.getLiteral(lit2.getDatatype().toString());
                        return vec1.read(v1.stringValue()).intersection(vec2.read(v2.stringValue()));
                }else if(type && !type2) {
                        VectorLiteral vec1=(VectorLiteral) LiteralRegistry.getLiteral(lit1.getDatatype().toString());
                        RasterLiteral vec2=(RasterLiteral) LiteralRegistry.getLiteral(lit2.getDatatype().toString());
                        return vec1.read(v1.stringValue()).intersection(LiteralUtils.toGeometry(vec2.read(v2.stringValue()).getGridGeometry().getEnvelope()));
                }else if(!type && type2) {
                        RasterLiteral vec1=(RasterLiteral) LiteralRegistry.getLiteral(lit1.getDatatype().toString());
                        VectorLiteral vec2=(VectorLiteral) LiteralRegistry.getLiteral(lit2.getDatatype().toString());
                        return LiteralUtils.toGeometry(((GridCoverage)vec1.read(v1.stringValue())).getGridGeometry().getEnvelope()).intersection(vec2.read(v2.stringValue()));
                }else {
                        RasterLiteral vec1=(RasterLiteral) LiteralRegistry.getLiteral(lit1.getDatatype().toString());
                        RasterLiteral vec2=(RasterLiteral) LiteralRegistry.getLiteral(lit2.getDatatype().toString());
                        return LiteralUtils.toGeometry(((GridCoverage)vec1.read(v1.stringValue())).getGridGeometry().getEnvelope()).intersection(LiteralUtils.toGeometry(vec2.read(v2.stringValue()).getGridGeometry().getEnvelope()));
                }
        }

References RasterVectorRelationFunction.getLiteral(), LiteralRegistry.getLiteral(), RasterLiteral.read(), VectorLiteral.read(), LiteralUtils.toGeometry(), and RasterVectorRelationFunction.vectorOrRaster().

vectorOrRaster()

static Boolean vectorOrRaster ( Literal  lit )

staticinherited

                                                          {
                if(rasterLiteralURIs.contains(lit.getDatatype().toString())) {
                        return false;
                }else if(vectorLiteralURIs.contains(lit.getDatatype().toString())) {
                        return true;
                }
                return null;
        }

References RasterVectorRelationFunction.rasterLiteralURIs, and RasterVectorRelationFunction.vectorLiteralURIs.

Referenced by Intersection.relation().

Member Data Documentation

rasterLiteralURIs

Set<String> rasterLiteralURIs =new TreeSet<String>()

staticinherited

Referenced by RasterVectorRelationFunction.vectorOrRaster().

vectorLiteralURIs

Set<String> vectorLiteralURIs =new TreeSet<String>()

staticinherited

Referenced by RasterVectorRelationFunction.vectorOrRaster().