[Quickfix-developers] [Fwd: Re: Enumerating all repeating groups in a FIX message]

[Dale W. <wi...@oc...>]

Hi Alex,

I accidentally deleted one too many lines when I stripped away the noise 
from this method.
The missing line is:
       fieldMap.getGroup(ng + 1, fieldTag,groupMap);

which assigns the value to the groupMap.

I'm not using the C# mapping, so you'll have to do some research into 
what methods are exposed.  Worse case is you'll have to add some 
unmanaged C++ code to iterate thru the fields and pass them up to the 
.NET world.

Dale


Alex Marangos wrote:
> Dale,
>
> Thanks - though I still have a couple of questions...
>
> In your [begin group entry] block, it seems to me there's some missing code - "groupMap" is not assigned any value before you recursively call decodeFieldMap.
>
> Also, in C# (which is what I'm using right now), the compiler complains that it can't convert QuickFix.Group to QuickFix.FieldMap - and I can't see any methods that would allow me to retrieve the FieldMap from a Group. How do I achieve this bit?
>
> Thanks again.
> Alexandros
>
>
>
>
>
>
> ----- Original Message ----
> From: Dale Wilson <wi...@oc...>
> To: Alex Marangos <ale...@ya...>
> Cc: qui...@li...
> Sent: Wednesday, 29 April, 2009 20:11:54
> Subject: Re: [Quickfix-developers] Enumerating all repeating groups in a FIX message
>
> Alex Marangos wrote:
>   
>> Alternatively, is there a way to enumerate through *all* fields of the message, regardless of whether they are in a group or not?
>>
>>  
>>     
> void decodeFieldMap (const FIX::FieldMap & fieldMap)
> {
> FIX::FieldMap::Fields::const_iterator mapEnd = fieldMap.end();
> for (FIX::FieldMap::Fields::const_iterator mapPos = fieldMap.begin();
>       mapPos != mapEnd;
>       ++mapPos)
> {
>    const FIX::FieldBase & field = (*mapPos).second;
>    [do something with the field]
>
>    int fieldTag = (*mapPos).first;
>    int nGroups = fieldMap.groupCount(fieldTag);
>    if(nGroups != 0)
>    {
>       [do start of group processing]
>      for (int ng = 0; ng < nGroups; ++ng)
>      {
>        [begin group entry]
>        FIX::FieldMap groupMap;
>        decodeFieldMap (groupMap);
>      }
>     [do end of group processing]
>    }
> }
> }
>
> Dale
>
>
>       
>