Re: [Quickfix-developers] Re: empty tag

[Alvin W. <AW...@FF...>]

IMHO, can QF have a configuration for this behavior? Exception(strict) vs 
Ignore(forgiving)...

Thanks






"Oren Miller" <or...@qu...>
Sent by: qui...@li...
07/05/2005 10:16 AM

 
        To:     "Alvin Wang" <AW...@FF...>
        cc:     <qui...@li...>, 
<qui...@li...>
        bcc: 
        Subject:        Re: [Quickfix-developers] Re: empty tag


My concern is how to handle the situation where the field already exists. 
If field 58 is set in the message, and I set it again with a field that 
has an empty tag, what does this mean?  Does it mean that I ignore the new 
field and retain the old value?  Or do I remove the old field from the 
message completely.  In which case setting a field with an empty tag is 
the same behavior as calling removeField.  Both of these behaviors feel a 
little surprising to me.  I'd be interested in hearing other opinions on 
this.
 
--oren
----- Original Message ----- 
From: Alvin Wang 
To: Oren Miller 
Cc: qui...@li... ; qui...@li... 
Sent: Tuesday, July 05, 2005 9:40 PM
Subject: [Quickfix-developers] Re: empty tag


Oren, I can understand where you are coming from. It makes total sense if 
QF throws NoTagValue exception in this case. However, I just feel it will add workload to the developers 
and the production may become disruptive. 

Thanks 
Alvin 





"Oren Miller" <or...@qu...> 
07/05/2005 10:00 AM 
        
        To:        <qui...@li...>, <qui...@li...>, "Alvin Wang" <AW...@FF...> 
        cc:         
        bcc:         
        Subject:        Re: empty tag



We could, although more likely I would throw a NoTagValue exception.  I 
don't much like the idea of having QF silently ignoring a field that the 
developer would be expecting to go out in the message (much like I don't 
like the current behavior).  I can imagine the head scratching that would 
go on if they added a field and then found it mysteriously absent in the 
logs. 
  
In either case if you have a field that might contain a blank value, I 
would suggest checking it before adding it to a message. 
  
--oren 
----- Original Message ----- 
From: Alvin Wang 
To: qui...@li... ; qui...@li... 
Cc: Oren Miller 
Sent: Tuesday, July 05, 2005 9:10 PM 
Subject: empty tag 


HI 

If I set a tag as below: 
message.set(new Text(text)); 
and if the variable "text" is null. QF will include an empty tag 58. As a 
result, some FIX engine (such as QF itself) on the other end will reject 
the message.  Can QF skip including empty tag? 

Thanks 
Alvin ********************************************************************** 
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