JTable - JComboBox/List - JTable

Question

My target: I would like to have multiple columns in my comboBox or list. When I choose one item, the result would be just a single column but not all columns. Moreover, the whole comboBox is actually one cell within a JTable. i.e. when I click one cell of a jtable, it shows a comboBox.
I have searched this forum but just found some ways to get multiple columns in comboBox, and it seem no one has tried to include it in a JTable cell. I just wonder if anyone can help and it would be thankful.

Answer 1

Let me post the code here:
//the init of comboBox model within jtable here
     private void initSupplierCombo(TableColumn col){
       String query = "select supplier_no, supplier_name from supplier_master group by supplier_no,supplier_name;";
       JComboBox comboBox = new JComboBox();
       Vector supplierList = itemDB.getComboResults(query);
       try {
         comboBox.setModel(new ResultSetComboBoxModel(supplierList));
         col.setCellEditor(new DefaultCellEditor(comboBox));
         DefaultTableCellRenderer renderer =
             new DefaultTableCellRenderer();
         renderer.setToolTipText(
             "Click for combo box & choose");
         col.setCellRenderer(renderer);
         //Set up tool tip for the sport column header.
         TableCellRenderer headerRenderer = col.getHeaderRenderer();
         if (headerRenderer instanceof DefaultTableCellRenderer) {
           ( (DefaultTableCellRenderer) headerRenderer).setToolTipText(
               "Click to see a list of choices");
       catch (Exception e) {
         e.printStackTrace();
//ResultSetComboBoxModel
import javax.swing.*;
import java.sql.*;
import java.util.Vector;
public class ResultSetComboBoxModel extends ResultSetListModel
    implements ComboBoxModel
    protected Object selected = null;
    public ResultSetComboBoxModel(Vector columnResults) throws Exception {
        super(columnResults);
    public Object getSelectedItem() {
      return selected;
    public void setSelectedItem(Object o) {
        if(o==null)
          selected = o;
        else{
          String value = (String) o;
          selected = (Object)(value.substring(0,value.lastIndexOf("  //  ")));
//ResultSetListModel
import javax.swing.*;
import java.util.*;
import java.sql.*;
public class ResultSetListModel extends AbstractListModel {
    List values = new ArrayList();
    public ResultSetListModel(Vector columnResults) throws Exception {
      for(Iterator item = columnResults.iterator();item.hasNext();){
        String[] value  = (String[])item.next();
        values.add(value[0] + "  //  " + value[1]);
    public int getSize() {
        return values.size();
    public Object getElementAt(int index) {
      return values.get(index);
}