docs: public int initForMessage(Rec record)
      {
          int iErrorCode = Constant.NORMAL_RETURN;
          if (m_messageDataDescChildren != null)
          {
              for (String strKey : m_messageDataDescChildren.keySet())
              {
                  MessageDataDesc messageDataDesc = m_messageDataDescChildren.get(strKey);
                  iErrorCode = messageDataDesc.initForMessage(record);
                  if (iErrorCode != Constant.NORMAL_RETURN)
                      break;
              }
          }
          return iErrorCode;
      }