public EventTracker(LocalRegion region){
  this.cache=region.cache;
  this.name="Event Tracker for " + region.getName();
  this.initializationLatch=new StoppableCountDownLatch(region.stopper,1);
}

public EventTracker ( LocalRegion region ) { this . cache = region . cache ; this . name = "Event Tracker for " + region . getName ( ) ; this . initializationLatch = new StoppableCountDownLatch ( region . stopper , 1 ) ; }
create an event tracker
