Cell Editor not working

[Shannon Sims]

Hello everyone,
I'm trying to allow a user to insert up to eight digits into a cell. The following code doesn't seem to work, am I missing something?

   DefaultCellEditor editor = null;
   JTextField ownerField = new JTextField();
   //allows only eight numbers
   ownerField.setDocument( new NumericLengthDocument( 8 ) );
   ownerField.setHorizontalAlignment( JTextField.RIGHT );
   editor = new DefaultCellEditor( ownerField );
 
   //OwnerCellListener defines the editingCanceled() and editingStopped()
   editor.addCellEditorListener( new OwnerCellListener() );
   aWindow.getTable().setCellEditor( editor );
   aWindow.getTable().setCellSelectionEnabled( true );
   TableColumn column = aWindow.getTable().getColumnModel().getColumn( 
         aWindow.getTable().getColumnCount() - 1 );
   column.setCellEditor( editor );

   DefaultTableCellRenderer renderer = new DefaultTableCellRenderer();
   column.setCellRenderer( renderer );
 
   aWindow.getTable().setEditingColumn( 2 );
   aWindow.addTableListener( new ClickedTableListener() );

When I click in a cell, it allows me to enter more than eight digits and the value isn't aligned to the right. Additionally, the values in the other cells are not aligning to the right?

Thanks for everyones help!