return _columnName;
    }

    public ColumnInfo columnSessionId() {
        return _columnSessionId;
    }

    protected List<ColumnInfo> ccil() {
        List<ColumnInfo> ls = newArrayList();
        ls.add(columnCreatedTime());
        ls.add(columnExpiredTime());
        ls.add(columnName());
        ls.add(columnSessionId());
        return ls;
    }