Cell Editor Combo Box - Tablle aktualisieren

[Fischkopf2009]

HAllo ich habe eine Jtable mit einem eigenen Cell Editor für ComboBox.
Wenn ich nun in der Combox einen Wert auswähle wird dieser Wert in der Tablle (Zelle) nicht dargestellt.

Hier ist der Code vom Cell Editor :

public class TestRunTableComboBoxEditor extends DefaultCellEditor  implements TableCellEditor
{
    private JComboBox comboBox;

    /**
     * @param comboBox
     */
    public TestRunTableComboBoxEditor(JComboBox comboBox)
    {
	super(comboBox);
	this.comboBox = comboBox;	
    }

    @Override
    public Object getCellEditorValue() 
    {
	return comboBox;
    }

    @Override
    public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column)
    {
	// select the value
	comboBox.setSelectedItem(value);

	return comboBox;
    }        
}

Hier wird der Zell Editor zu der Tabelle hinzugefügt.

testRunTable.setDefaultEditor(JComboBox.class, new TestRunTableComboBoxEditor(comboBox));

Und hier ist der Code für das Model :

public class TestRunTableModel implements TableModel
{
    private String[] tableHeader = new String[] {"", "TestCaseID", "TestVariantID", "ErrorType", "Manual Comment", "Ticket"};
    private Vector<TestVariantResult> testVariantResultList;   

    /**
     * 
     */
    public TestRunTableModel()
    {
	this.testVariantResultList = new Vector<TestVariantResult>();	
    }

    /**
     * 
     */
    public TestRunTableModel(Vector<TestVariantResult> testVariantResultList)
    {
	this.testVariantResultList = testVariantResultList;
    }	

    @Override
    public int getRowCount()
    {
	return testVariantResultList.size();
    }

    @Override
    public int getColumnCount()
    {
	return tableHeader.length;
    }

    @Override
    public String getColumnName(int columnIndex)
    {
	return tableHeader[columnIndex];
    }

    @Override
    public Class<?> getColumnClass(int columnIndex)
    {
	switch (columnIndex)
	{
	case 0: return Boolean.class;
	case 3: return JComboBox.class;

	case 4:
	case 5: return JTextField.class;

	default: return String.class;	    
	}
    }

    @Override
    public boolean isCellEditable(int rowIndex, int columnIndex)
    {
	return true;
    }

    @Override
    public Object getValueAt(int rowIndex, int columnIndex)
    {
	TestVariantResult testVariantResultObj = testVariantResultList.get(rowIndex);

	if (columnIndex == 0)
	{
	    return false;
	}

	// print the test case id
	if (columnIndex == 1)
	{
	    return testVariantResultObj.getTestCaseDescription().getTestCaseID();
	}

	// if the object is an test variant print the properties
	if (testVariantResultObj.isTestVariantResult() == true)
	{
	    switch(columnIndex)
	    {
	    // print the test variant id
	    case 2: return testVariantResultObj.getTestVariantID();

	    // print the ErrorType
	    case 3: return testVariantResultObj.getTestVariantResultErrorType();

	    // print the Manual Comment
	    case 4: return testVariantResultObj.getTestVariantResultManualComment();
	    }
	}

	return "";
    }

    @Override
    public void setValueAt(Object aValue, int rowIndex, int columnIndex)
    {
	// TODO Auto-generated method stub	
    }

    @Override
    public void addTableModelListener(TableModelListener l)
    {
	// TODO Auto-generated method stub

    }

Vielen Dank für eure Hilfe.