I seem to be have a problem when trying to get the coulmn count from a resultset's metadata. THe error is Exception in thread "AWT-EventQueue-0" java.lang.IllegalStateException: SQLite JDBC: inconsistent internal state.
THe idea is to use this table model to populate a JTable with the result from the database query. However when I do I get the above error.
The relevant code is:
public DefaultTableModel buildFlightModel()
throws SQLException {
query="SELECT Airline.AirlineName, Flight.FlightID, Flight.Location, Flight.Destination, Flight.ArriveTime, Flight.LeaveTime FROM Flight INNER JOIN Airline ON Airline.AirlineID=Flight.AirlineID;";
try {
Class.forName("org.sqlite.JDBC");
c = DriverManager.getConnection("jdbc:sqlite:coursework.db");
stmt = c.createStatement();
rs=stmt.executeQuery(query);
while(rs.next()){
//System.out.println(s);
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
ResultSetMetaData metaData = rs.getMetaData();
// names of columns
Vector<String> columnNames = new Vector<String>();
int columnCount = metaData.getColumnCount();
for (int column = 1; column <= columnCount; column++) {
columnNames.add(metaData.getColumnName(column));
}
// data of the table
Vector<Vector<Object>> data = new Vector<Vector<Object>>();
while (rs.next()) {
Vector<Object> vector = new Vector<Object>();
for (int columnIndex = 1; columnIndex <= columnCount; columnIndex++) {
vector.add(rs.getObject(columnIndex));
}
data.add(vector);
}
return new DefaultTableModel(data, columnNames);
}
Any thoughts/ideas/help would be deeply appreciated. Thank you.
