JComboBox cell editor *Listener problem

Question

Hi all,
I've setup a TreeTable with a JComboBox as a CellEditor for the second column.
Everything works just fine, except for event handling on a column with a JComboBox as cell editor.
In my case, the second column of the TreeTable represents the state of the activities. This state can be changed either programmatically or by user input. That is, my application can automatically change the state for some reason, or the user can select a new state for a particular activity with the mouse.
What I need to achieve is to capture events generated only from the user.
I've tried different solutions, adding ActionListener or ItemListener to the CellEditor, but they all capture events generated by the application in addition to those generated by the user of the application.
Can someone please give me some advice in this matter?
Xserty

Answer 1

What I need to achieve is to capture events generated only from the user.If you called the JComboBox's dataModel.setSelectedItem method yourself, no event will be fired!Unfortunately, I'm not able to update the dataModel (directly) myself.
I'm currently using the Creating TreeTables: Part 3; here's how it kinda works: my JTreeTable extends JTable. The JTreeTable has a model: TreeTableModel extends DefaultTreeModel implements InterfaceJTreeTableModel. In this model there are two methods implemented as following:
public Object getValueAt(Object pParentNode, int pColumn) {
  MutableActivityNode activityNode = (MutableActivityNode) pParentNode;
  try {
    switch (pColumn) {
      case 0 :
        return activityNode.getName();
      case 1 :
        return activityNode.getState();
      case 2 :
        return new Boolean(activityNode.isMonitored());
      default :
        // do something
  } catch (SecurityException se) {
    // do something
  return null;
public void setValueAt(Object pValue, Object pNode, int pColumn) {
  MutableActivityNode activityNode = (MutableActivityNode) pNode;
  try {
    switch (pColumn) {
      case 1 :
        activityNode.setState((String) pValue);
        break;
      case 2 :
        activityNode.setIsMonitored(((Boolean) pValue).booleanValue());
        break;
      default :
        // do something
  } catch (SecurityException se) {
    // do something
}Once I create my JTreeTable (with a model), I set the editor of the second column of my JTreeTable to a JComboBoxCellEditor.
As you may have noticed, all the information are stored in the node of the TreeTableModel and the information is displayed and set by the two methods above.
Thank you anyways for the advice :))
Have you any idea on how I could solve the problem in this case?
Xserty