code: public void setOfflineUpdateFrequency(String offlineUpdateFrequency) {
  
          try {
              setOfflineUpdateFrequency(Long.parseLong(offlineUpdateFrequency));
          } catch (Exception e) {
              LOG.error(
                  Messages.get().getBundle().key(
                      Messages.LOG_PARSE_OFFLINE_UPDATE_FAILED_2,
                      offlineUpdateFrequency,
                      new Long(DEFAULT_OFFLINE_UPDATE_FREQNENCY)),
                  e);
              setOfflineUpdateFrequency(DEFAULT_OFFLINE_UPDATE_FREQNENCY);
          }
      }
docs: Sets the update frequency of the offline indexer in milliseconds.<p>
  
  @param offlineUpdateFrequency the update frequency in milliseconds to set