}

    public ColumnInfo columnDepth() {
        return _columnDepth;
    }

    public ColumnInfo columnDescription() {
        return _columnDescription;
    }

    public ColumnInfo columnExcludedDocUrls() {
        return _columnExcludedDocUrls;
    }

    public ColumnInfo columnExcludedUrls() {
        return _columnExcludedUrls;
    }

    public ColumnInfo columnIncludedDocUrls() {