Re: [Quickfix-developers] UseDataDictionary and repeating groups

[Oren M. <or...@qu...>]

Dale explained the technical reason why the first field must be in =20
order.  The main reason the rest of them must be in order is because =20
the specification requires it:

"Message Format

...

4. Fields within repeating data groups must be specified in the order =20=

that the fields are
specified in the message definition within the FIX specification =20
document.  The NoXXX field
where XXX is the field being counted specifies the number of =20
repeating group instances that
must immediately precede the repeating group contents.

..."

On Aug 2, 2005, at 9:31 PM, Alvin Wang wrote:

>
> Why is the order of the fields in a repeating groups important?
>
>
>
> Joerg Thoennes <Joe...@ma...>
> Sent by: qui...@li...
> 08/02/2005 10:37 AM
>
>
>         To:        Alvin Wang <AW...@FF...>
>         cc:        qui...@li..., =20
> qui...@li...
>         bcc:
>         Subject:        Re: [Quickfix-developers] UseDataDictionary =20=

> and repeating groups
>
>
>
> QuickFIX Documentation: http://www.quickfixengine.org/quickfix/doc/=20
> html/index.html
> QuickFIX Support: http://www.quickfixengine.org/services.html
>
> Alvin Wang wrote:
> > Hi, I just wonder why UseDataDictionary has to be set as Y in =20
> order to use
> > repeating groups? This is not very convenient...
>
> To parse repeating groups correctly, the order of fields is =20
> important. Without a data
> dictionary, QF does not know anything about the field order.
>
> Cheers, J=F6rg
>
> --=20
> Joerg Thoennes
>                                http://macd.com
> Tel.: +49 (0)241 44597-24      Macdonald Associates GmbH
> Fax : +49 (0)241 44597-10      Lothringer Str. 52, D-52070 Aachen
>
>
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