code: @Override
      protected boolean notHaveAnyExpirableRecord(PartitionContainer partitionContainer) {
          boolean notExist = true;
          final ConcurrentMap<String, RecordStore> maps = partitionContainer.getMaps();
          for (RecordStore store : maps.values()) {
              if (store.isExpirable()) {
                  notExist = false;
                  break;
              }
          }
          return notExist;
      }
docs: Here we check if that partition has any expirable record or not,
  if no expirable record exists in that partition no need to fire
  an expiration operation.
  
  @param partitionContainer corresponding partition container.
  @return <code>true</code> if no expirable record in that
  partition <code>false</code> otherwise.