public PartitionedRegionRebalanceOp(PartitionedRegion region,boolean simulate,RebalanceDirector director,boolean replaceOfflineData,boolean isRebalance){
  this(region,simulate,director,replaceOfflineData,isRebalance,new AtomicBoolean(),null);
}

public PartitionedRegionRebalanceOp ( PartitionedRegion region , boolean simulate , RebalanceDirector director , boolean replaceOfflineData , boolean isRebalance ) { this ( region , simulate , director , replaceOfflineData , isRebalance , new AtomicBoolean ( ) , null ) ; }
create a rebalance operation for a single region .
