@Override
  public boolean hasSeenEvent(InternalCacheEvent event) {
    EventID eventID = event.getEventId();
    if (ignoreEvent(event, eventID)) {
      return false; // not tracked
    }
    return hasSeenEvent(eventID, event);
  }
Record a version tag for a bulk operation.
geode-core/src/main/java/org/apache/geode/internal/cache/event/DistributedEventTracker.java