kiwi-postgis  Version 0.1.0.0
HexWKBDatatype Class Reference

WKTDatatype class allows the URI "geo:wktLiteral" to be used as a datatype and it will parse that datatype to a JTS Geometry. More...

Inheritance diagram for HexWKBDatatype:
Collaboration diagram for HexWKBDatatype:

Classes

class  HexWKBTextSRS
 

Public Member Functions

String unparse (Geometry geometry)
 This method Un-parses the JTS Geometry to the WKT literal. More...
 
Geometry read (String geometryLiteral)
 
String toString ()
 

Static Public Attributes

static final String URI = POSTGIS.HEXWKB
 The default WKT type URI. More...
 
static final HexWKBDatatype INSTANCE = new HexWKBDatatype()
 A static instance of WKTDatatype. More...
 

Detailed Description

WKTDatatype class allows the URI "geo:wktLiteral" to be used as a datatype and it will parse that datatype to a JTS Geometry.

Req 10 All RDFS Literals of type geo:wktLiteral shall consist of an optional URI identifying the coordinate reference system followed by Simple Features Well Known Text (WKT) describing a geometric value. Valid geo:wktLiterals are formed by concatenating a valid, absolute URI as defined in [RFC 2396], one or more spaces (Unicode U+0020 character) as a separator, and a WKT string as defined in Simple Features [ISO 19125-1].

Req 11 The URI

<http://www.opengis.net/def/crs/OGC/1.3/CRS84>

shall be assumed as the spatial reference system for geo:wktLiterals that do not * specify an explicit spatial reference system URI.

Member Function Documentation

◆ read()

Geometry read ( String  geometryLiteral)

References HexWKBDatatype.HexWKBTextSRS.getWkbText().

54  {
55  HexWKBTextSRS wkbTextSRS = new HexWKBTextSRS(geometryLiteral);
56  WKBReader wkbReader = new WKBReader();
57  Geometry geometry=null;
58  try {
59  geometry = wkbReader.read(WKBReader.hexToBytes(wkbTextSRS.getWkbText().toString()));
60  return geometry;
61  } catch (ParseException e) {
62  throw new RuntimeException(e.getMessage());
63  }
64  }

◆ toString()

String toString ( )

Referenced by HexWKBDatatype.unparse().

97  {
98  return "HexWKBDatatype{" + URI + '}';
99  }
static final String URI
The default WKT type URI.
Definition: HexWKBDatatype.java:30

◆ unparse()

String unparse ( Geometry  geometry)

This method Un-parses the JTS Geometry to the WKT literal.

Parameters
geometry- the JTS Geometry to be un-parsed
Returns
WKT - the returned WKT Literal.
Notice that the Spatial Reference System is not specified in returned WKT literal.

References HexWKBDatatype.toString().

48  {
49  WKBWriter writer=new WKBWriter();
50  return WKBWriter.toHex(writer.write(geometry)).toString();
51  }

Member Data Documentation

◆ INSTANCE

final HexWKBDatatype INSTANCE = new HexWKBDatatype()
static

A static instance of WKTDatatype.

Referenced by LiteralRegistry.LiteralRegistry().

◆ URI

final String URI = POSTGIS.HEXWKB
static

The default WKT type URI.

Referenced by LiteralRegistry.LiteralRegistry().