docs: public void init(Rec record, int iKeyDup, String strKeyName)
      {
          m_vKeyFieldList = new Vector<Object>();
          m_record = (FieldList)record;
          m_iKeyDup = iKeyDup;
          m_strKeyName = strKeyName;
          if (m_record != null)
              m_record.addKeyArea(this);
          if (strKeyName != null)
              m_strKeyName = strKeyName;
          else
          {
              if (m_record != null) if (m_record.getKeyAreaCount() == 1)
                  m_strKeyName = Constants.PRIMARY_KEY; // Default Primary key name
          }
      }