Method ReadNext

cpp/src/arrow/json/reader.cc:450–453

  [[nodiscard]] std::shared_ptr<Schema> schema() const override { return schema_; }

  Status ReadNext(std::shared_ptr<RecordBatch>* out) override {
    auto result = ReadNextAsync().result();
    return std::move(result).Value(out);
  }

  Future<std::shared_ptr<RecordBatch>> ReadNextAsync() override {
    // On the first call, return the batch we used for initialization