title: How do you get repeating groups in a quickfixj message
body: <p>For a quickfixj message like a trade capture report, it can sometimes have nested repeating group. Take a look at NYSE's trade capture report message on page 10 of their document : <a href="https://www.nyse.com/publicdocs/nyse/markets/nyse/NYSE_TRF_Messaging_Spec.pdf" rel="nofollow">https://www.nyse.com/publicdocs/nyse/markets/nyse/NYSE_TRF_Messaging_Spec.pdf</a></p>
  
  <p>Say if one needs to get a partyID(448), partyIDSource(447) and partyRole(452), how does one do it using Java and the QuickFixJ java api </p>