tut http://example.org/tutorial gml http://www.opengis.net/gml datastore directory file:./ RoadSegment.xsd datastore tut_RoadSegment tut:RoadSegment tut:RoadSegment ID gml:name FID codeSpace 'urn:x-test:classifierScheme:TestAuthority:SDI:transport:v1' tut:name NAME tut:fromToNodes FID tut:fromToNodes/tut:fromNode fromNode tut:fromToNodes/tut:toNode toNode tut:the_geom the_geom