@Override
    public boolean hasAnyNulls(int fieldCount, boolean[] nullsafes) {
      if (nulls == null || nulls.length == 0) return false;
      for (int i = 0; i < nulls.length; i++) {
        if (nulls[i] && (nullsafes == null || !nullsafes[i])) {
          return true;
        }
      }
      return false;
    }
Implementation of ReusableGetAdaptor that has Output for key serialization; row
container is also created once and reused for every row.
ql/src/java/org/apache/hadoop/hive/ql/exec/persistence/HybridHashTableContainer.java