docs: public void doAdd(Rec record) throws DBException
      {
          super.doAdd(record);
          if (m_arrayCache != null)
              if (m_iEndOfFileIndex != NO_INDEX)
          {
              m_iEndOfFileIndex++;
              m_arrayCache.set(m_iEndOfFileIndex, this.getDataSource());  // Show the current record as deleted.
          }
      }