Please Help! ?Result Set not updating correctly

Question

Hi
This problem has been driving me mad for days now so if anyone can shed any light on it I?d be really grateful.
I have a jTable in a frame which is populated via a database. (NB I?m using Access 2000 and the JDBC-ODBC driver v.4.00.6019). Data is added to the table via a dialog box. i.e. when the submit button on the dialog box is clicked, the new data input into textfields and text areas in the dialog box is added to the database and then the database is requeried so that the data just added is also displayed in the table. The database is updated every time with no problems, I?m sure of this, however the jTable is not. Sometimes the jTable displays the updated data, other times it doesn?t. e.g. say I input ?a? via the dialog box, this value does not appear in the table. Then I input ?b? say, and ?a? will then be added to the table or sometimes ?a? and ?b? together. Sometimes the table is updated first time no problem, other times I have the scenario mentioned above.
I?ve looked at the result set that?s being returned when the database is requeried and it contains exactly the same data that appears in the jTable. So despite the fact that the database is definitely updated, I?m getting an incorrect result set. I?m using only the one connection object that?s created when the application is begun. I?ve even tried a dummy select statement before my proper requery of the database (as I?ve seen mentioned for a similar problem) but this doesn?t solve the problem.
I am ?refreshing? the jTable by way of a refresh method in the jTable?s Table Model.
The code is:
public void refresh ()
  rows.clear();
  firstColumn.clear();
  try {
   Statement statement = conn.createStatement();
   ResultSet rs = statement.executeQuery(query);
   ResultSetMetaData rsmd = rs.getMetaData();
   boolean moreRecords = rs.next();
     do
      rows.addElement( getNextRow (rs,rsmd));
     while (rs.next() );
     statement.close();
  catch ( SQLException sqlex )
    sqlex.printStackTrace();
  this.fireTableDataChanged();
}//End of Method  And the actual refresh method is being called when the dialog box is closed:
void jButton4_actionPerformed(ActionEvent e) {
    TimetableDialog tdBox = new TimetableDialog (this,"Enter Date and Event",true,dealName);
    setDialogBoxLocationCentre (tdBox);
    tdBox.setVisible(true);//Code below this not executed until Dialog disposed of
    boolean validData = tdBox.returnDataValid();
      timetableModel.refresh();
     Does anyone have any idea what might be going on? It is vital that I solve this. Thanks a lot for any help.
LGS

Answer 1

According to the documentation on the Connection class. New Connections are auto-commit by default, but the commit takes place irregularly.
"The commit occurs when the statement completes or the next execute occurs." This maybe where the ambiguity occurs. Maybe try forcing the commit connection.commit();