Function ReadNext

cpp/src/arrow/record_batch.h:365–367

  virtual Status ReadNext(std::shared_ptr<RecordBatch>* batch) = 0;

  virtual Result<RecordBatchWithMetadata> ReadNext() {
    return Status::NotImplemented("ReadNext with custom metadata");
  }

  /// \brief Iterator interface
  Result<std::shared_ptr<RecordBatch>> Next() {