/*
  * (non-Javadoc)
  *
  * @see
  * freemind.controller.filter.condition.Condition#checkNode(freemind.modes
  * .MindMapNode)
  */
 public boolean checkNode(Controller c, MindMapNode node) {
   AttributeTableModel attributes = node.getAttributes();
   for (int i = 0; i < attributes.getRowCount(); i++) {
     if (attributes.getValueAt(i, 0).equals(attribute)) return false;
   }
   return true;
 }