private boolean isAllDone() {
    for (Future<RebalanceResults> fr : getFutureList()) {
      if (!fr.isDone()) {
        return false;
      }
    }
    return true;
  }
Implements {@code RebalanceOperation} for rebalancing Cache resources.
geode-core/src/main/java/org/apache/geode/internal/cache/control/RebalanceOperationImpl.java