[postgis] ClassCast Exception

[bouabdaddy]

Hi everyone,

can anybody help me out with the following runtime error:

                Exception occurred during event dispatching:
                java.lang.ClassCastException: java.lang.String
                at canned_classes.JDBCAdapter.executeGISQuery
                (JDBCAdapter.java:89)
                at 		
canned_classes.QueryToolInterface.fetchSiteBoundaries
                (QueryToolInterface.java:200)
                at canned_classes.QueryToolInterface$3.actionPerformed
                (QueryToolInterface.java:130)



                This is the code at line 89 JDBCAdapter.java

                PGgeometry polygon =
(PGgeometry)resultSet.getObject(2);
                System.out.println("Got site_boundary:");
                System.out.println(polygon.toString());

                This is the code at line 200 QueryToolInterface.java:

                //this line calles the method executeGISQuery in
JDBCAdapter.java 
                which trips up at the codes above

                dataBase.executeGISQuery("select boundary_id, AsText
                (external_boundary) as external_boundary,
Astext(site_centroid) as 
                site_centroid from geom_site_boundary;");




                I have included the following additions to the data
types of the 
                Postgresql connection:

                ((org.postgresql.Connection)connection).addDataType
                ("geometry","org.postgis.PGgeometry");
                ((org.postgresql.Connection)connection).addDataType
                ("multipolygon","org.postgis.MultiPolygon");
                ((org.postgresql.Connection)connection).addDataType
                ("box3d","org.postgis.PGbox3d");
                ((org.postgresql.Connection)connection).addDataType
                ("polygon","org.postgis.Polygon");
                ((org.postgresql.Connection)connection).addDataType
                ("point","org.postgis.Point");

                and of course: import org.postgis.*;

                Best regards

                Ismail


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