Error in displaying the label_column on the map

Question

hello everyone,
i am developing a travelling salesman problem project for my graduation project in my university. i want to see the street names on the result map in my application. the related code part of my program as below:
String [] thmStr = new String[2];
thmStr[0] = "tspTheme";
String dtsrc = "spatial10g";
String baseMap = "us_city_map";
String mapTitle = "Courier Guidance Map";
mv.setDataSourceName(dtsrc); // set datasource name
mv.setBaseMapName(baseMap); // set basemap
mv.setBoundingThemes(thmStr, 0.15, true);
mv.setImageFormat(MapViewer.FORMAT_PNG_URL); //set image format
mv.setMapRequestSRID(8307); //set the SRID of the map request
mv.setMapTitle(mapTitle);
mv.addJDBCTheme(
mv.getDataSourceName(),
thmStr[0],
sql,
"geometry",
"8307",
"L.TSPROUTE",
"link_name",
"T.STREET NAME",
false);
the code works correctly, i see the result route labeled by L.TSPROUTE, i do not see any error messages but there is not displayed the "street names" on the result route.
i am not able to find any reason causing this problem. i have a time problem and any help will be appreciated.
Regards
Huseyin

Answer 1

Hi Huseyin,
verify if you have defined the column name "link_name" on your "sql" parameter. It should be something like:
select geometry, link_name from your_table
Joao