proto/json_write_options.proto

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

syntax = "proto3";

package datafusion_java;

import "file_compression_type.proto";

option java_package = "org.apache.datafusion.protobuf";
option java_multiple_files = true;

// Options used to write JSON files. Fields with non-null Java defaults are
// always sent; fields marked `optional` preserve unset-ness so the Rust side
// can leave a DataFusion default in place. `FileCompressionType` is shared
// with the read side and the CSV writer since the codec set is identical.
// `partition_cols` is sent as a repeated string so an empty list (the
// default) round-trips unambiguously.
//
// The output is always newline-delimited JSON (NDJSON) -- DataFusion's JSON
// writer only emits NDJSON, so the read-side `newline_delimited` toggle has
// no equivalent here.
message JsonWriteOptionsProto {
  optional bool single_file_output = 1;
  repeated string partition_cols = 2;
  optional FileCompressionType file_compression_type = 3;
}