Method getColumnByName

matlab/src/cpp/arrow/matlab/tabular/proxy/record_batch.cc:187–206

}

void RecordBatch::getColumnByName(libmexclass::proxy::method::Context& context) {
  namespace mda = ::matlab::data;

  mda::StructArray args = context.inputs[0];
  const mda::StringArray name_mda = args[0]["Name"];
  const auto name_utf16 = std::u16string(name_mda[0]);
  MATLAB_ASSIGN_OR_ERROR_WITH_CONTEXT(const auto name,
                                      arrow::util::UTF16StringToUTF8(name_utf16), context,
                                      error::UNICODE_CONVERSION_ERROR_ID);

  const std::vector<std::string> names = {name};
  const auto& schema = record_batch->schema();
  MATLAB_ERROR_IF_NOT_OK_WITH_CONTEXT(schema->CanReferenceFieldsByNames(names), context,
                                      error::ARROW_TABULAR_SCHEMA_AMBIGUOUS_FIELD_NAME);

  const auto array = record_batch->GetColumnByName(name);
  MATLAB_ASSIGN_OR_ERROR_WITH_CONTEXT(context.outputs[0],
                                      arrow::matlab::proxy::wrap_and_manage(array),
                                      context, error::UNKNOWN_PROXY_FOR_ARRAY_TYPE);
}

void RecordBatch::getSchema(libmexclass::proxy::method::Context& context) {
  namespace mda = ::matlab::data;