code: void setTranscoderService( final TranscoderService transcoderService ) {
          _transcoderService = transcoderService;
          _backupSessionService = new BackupSessionService( transcoderService, _sessionBackupAsync, _sessionBackupTimeout,
                  _backupThreadCount, _storage, _memcachedNodesManager, _statistics );
      }
docs: Set the {@link TranscoderService} that is used by this manager and the {@link BackupSessionService}.
  
  @param transcoderService the transcoder service to use.