delete_loader.h

Go to the documentation of this file.

/*
 * 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 <memory>
#include <span>
#include <string_view>
 
#include "iceberg/iceberg_data_export.h"
#include "iceberg/result.h"
#include "iceberg/type_fwd.h"
 
namespace iceberg {
 
class ICEBERG_DATA_EXPORT DeleteLoader {
 public:
  explicit DeleteLoader(std::shared_ptr<FileIO> io);
 
  ~DeleteLoader();
 
  Result<PositionDeleteIndex> LoadPositionDeletes(
      std::span<const std::shared_ptr<DataFile>> delete_files,
      std::string_view data_file_path) const;
 
  Result<std::unique_ptr<UncheckedStructLikeSet>> LoadEqualityDeletes(
      std::span<const std::shared_ptr<DataFile>> delete_files,
      const StructType& equality_type) const;
 
 private:
  Status LoadPositionDelete(const DataFile& file, PositionDeleteIndex& index,
                            std::string_view data_file_path) const;
 
  Status LoadDV(const DataFile& file, PositionDeleteIndex& index) const;
 
  std::shared_ptr<FileIO> io_;
};
 
}  // namespace iceberg