From: Warren Young
Date: November 22 2006 12:09am
Subject: Re: SSQLS v2 :)
List-Archive: http://lists.mysql.com/plusplus/6139
Message-Id: <4563954E.6060805@etr-usa.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=KOI8-R; format=flowed
Content-Transfer-Encoding: 8bit

Королев Илья wrote:
> 
> I'm studying expanded SSQLS code and I have a question.
> As I can see,  field_list() (for example) return a temporary object of 
> <ClassName>_field_list. And real output to stream operate with it. I wonder, 
> what are advantages of such approach? Why we can't just return std::string in 
> field_list()? Disadvantage is heavy *.h.

The advantage is that a list of field names is more flexible than a 
single string listing the fields.  This advantage matters if you don't 
need all of the fields, or you need to have them in multiple formats.  I 
would only let you change this as you suggest if you can prove that all 
uses of the field list objects only need the fields in a single format, 
and they need all of them, always.