Re: [Quickfixj-users] Multiple PartyId's

[stacyann_1 <sta...@gs...>]

Thanks Toli -
I'm now getting an exception, so maybe I still don't completely grasp this.
Here is a snippet:

        NoPartyIDs noPartyIDs = new NoPartyIDs();
        quickFixMessage_.getField(noPartyIDs);

        quickfix.fix44.ExecutionReport.NoPartyIDs group =
                    new quickfix.fix44.ExecutionReport.NoPartyIDs();

        int i=1;
        boolean traderFound = false;
        PartyID partyId = new PartyID();
        PartyRole partyRole = new PartyRole();
        while (i <= noPartyIDs.getValue() && !traderFound) {
            quickFixMessage_.getGroup(i, group);
            group.get(partyId);
            group.get(partyRole);

            if (partyRole.getValue() == 1) {
                traderFound = true;
            }
        }


The exception is 
quickfix.FieldNotFound: 453, index=1
	at quickfix.FieldMap.getGroup(FieldMap.java:621)

at the getGroup line.. I must still not be doing something right.

Thanks,Stacy

toli wrote:
> 
> QuickFIX/J Documentation: http://www.quickfixj.org/documentation/
> QuickFIX/J Support: http://www.quickfixj.org/support/
> Stacy,
> 
> I think you are seeing problems because you are using a general
> quickfix.Message instead of a specific fix-versioned message such as
> quickfix.fix44.ExecutionReport
> 
> The reason you are not seeing message.get() functions is that they
> don't exist in a general quickfix.Message but do exist (with only
> specific parameter types) in a more concrete
> quickfix.fix4x.<MessageType> classes.
> 
>> How come noMDEntries is defined as NoMDEntries but group is defined as
>> quickfix.fix42.MarketDataSnapshotFullRefresh.NoMDEntries? Does it need to
>> be
>> this way?
> The first is NoMDEntries field that tells you the # of groups. the 2nd
> one is a concrete fix-versioned type for the group itself.
> So to answer your question - yes, you need to be more specific with
> your types if you want to just use get() methods.
> 
> We solved that problem by creating a general -purpose fix-extractor
> methods (that work both on groups and regular messages) and just rely
> on the incoming type to get the right value out.
> Marketcetera Trading Platform is open-sourced and GPL'd, so depending
> on what you are doing with your code you may just be able to use the
> marketcetera-core jar file to reuse our code "for free":
> http://trac.marketcetera.org/trac.fcgi/browser/platform/trunk/core/src/main/java/org/marketcetera/quickfix/FIXValueExtractor.java
> 
>> I was hoping I could somehow avoid iteration to see which PartId I care
>> about, but it doesn't seem like that is possible.
> 
> I'm afraid not - you have to loop through them, i don't think there's
> a defined pattern to how the groups are arranged.
> 
> --
> Toli Kuznets
> http://www.marketcetera.com: Open-Source Trading Platform
> download.run.trade.
>>
> 
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