if (validateParameters(this.fullSize, this.pageSize, downCacheSize)) this.downCacheSize = downCacheSize;
this.downCacheSize = downCacheSize;
   public void setDownCacheSize(int downCacheSize)   {      if (started)      {         log.warn("DownCacheSize can only be changed when destination is stopped");         return;      }            if (validateParameters(this.fullSize, this.pageSize, downCacheSize))         this.downCacheSize = downCacheSize;   }