metadata_scan_task_reader.h

/*
 * 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.
 */
 
#pragma once
 
#include <cstdint>
#include <memory>
 
#include "iceberg/arrow_c_data.h"
#include "iceberg/iceberg_export.h"
#include "iceberg/result.h"
#include "iceberg/type_fwd.h"
 
namespace iceberg {
 
class ICEBERG_EXPORT MetadataScanTaskReader {
 public:
  struct Options {
    int64_t batch_size = 1024;
  };
 
  static Result<std::unique_ptr<MetadataScanTaskReader>> Make(Options options);
 
  ~MetadataScanTaskReader();
 
  Result<ArrowArrayStream> Open(const MetadataScanTask& task) const;
 
  MetadataScanTaskReader(const MetadataScanTaskReader&) = delete;
  MetadataScanTaskReader& operator=(const MetadataScanTaskReader&) = delete;
 
 private:
  explicit MetadataScanTaskReader(Options options);
 
  const Options options_;
};
 
}  // namespace iceberg