@Override
    public Object getValueAt(int rowIndex, int columnIndex) {
    	ProcessRowData rowData = rows.get(rowIndex);
        Object value = null;
        switch (columnIndex) {
            case 0:
                value = rowData.getPagename();
                break;
            case 1:
                value = rowData.getStatus();
                break;
            case 2:
                value = rowData.getCrawlerMessage();
                break;
            case 3:
                value = rowData.getTaggerMessage();
                break;
        }
        return value;
    }