public List<String> getLocations() {
    List<String> result = new ArrayList<>(locations.keySet());
    Collections.sort(result, (o1, o2) -> {
      Long time1 = locations.get(o1);
      Long time2 = locations.get(o2);
      return time1.compareTo(time2);
    });
    return result;
  }
Indicate this graphset is done populating. Triggers parsing of all of the graph patterns.
geode-core/src/main/java/org/apache/geode/internal/sequencelog/model/GraphSet.java