Method Make

cpp/src/arrow/dataset/discovery.cc:83–93

    : factories_(std::move(factories)) {}

Result<std::shared_ptr<DatasetFactory>> UnionDatasetFactory::Make(
    std::vector<std::shared_ptr<DatasetFactory>> factories) {
  for (const auto& factory : factories) {
    if (factory == nullptr) {
      return Status::Invalid("Can't accept nullptr DatasetFactory");
    }
  }

  return std::shared_ptr<UnionDatasetFactory>{
      new UnionDatasetFactory(std::move(factories))};
}

Result<std::vector<std::shared_ptr<Schema>>> UnionDatasetFactory::InspectSchemas(
    InspectOptions options) {