if (column == 0){  return ""; }
    public Object getValueAt(Object node, int column) {        try {            if (column == 0){                //liefert das node                return "";            }            if (node.getClass() == WaitNode.class) {                return "";            }            else if (node.getClass() == SearchNode.class) {                Object o = ( (SearchNode) node).getValueObject();                if ( ( (SearchNode) node).getNodeType() == SearchNode.ROOT_NODE) {                    return "";                }                else {                    Search.SearchEntry entry = (Search.SearchEntry) o;                    switch (column) {                        case 1:                            return entry.getGroesseAsString();                        case 2: {                            Search.SearchEntry.FileName[] filenames = entry.                                getFileNames();                            int haeufigkeit = 0;                            for (int i = 0; i < filenames.length; i++) {                                haeufigkeit += filenames[i].getHaeufigkeit();                            }                            return Integer.toString(haeufigkeit);                        }                        default:                            return "";                    }                }            }            else if (node.getClass() == Search.SearchEntry.FileName.class) {                Search.SearchEntry.FileName filename = (Search.SearchEntry.                    FileName) node;                switch (column) {                    case 1:                        return "";                    case 2:                        return Integer.toString(filename.getHaeufigkeit());                    default:                        return "";                }            }        }        catch (Exception e) {            if (logger.isEnabledFor(Level.ERROR)) {                logger.error(ApplejuiceFassade.ERROR_MESSAGE, e);            }        }        return null;    }