@Override
    public boolean next(NullWritable nullWritable, KuduWritable kuduWritable) {
      if (nextKeyValue()) {
        kuduWritable.setRow(currentValue);
        return true;
      }
      return false;
    }
A RecordReader that reads the Kudu rows from a KuduInputSplit.
kudu-handler/src/java/org/apache/hadoop/hive/kudu/KuduInputFormat.java