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RocksDB for Erlang

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rocksdb deps rocksdb table adaptive adaptive_table_factory.h
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deps/rocksdb/table/adaptive/adaptive_table_factory.h 

// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.

// Copyright (c) 2011 The LevelDB Authors. All rights reserved.

// Use of this source code is governed by a BSD-style license that can be

// found in the LICENSE file. See the AUTHORS file for names of contributors.



#pragma once



#include <string>



#include "rocksdb/options.h"

#include "rocksdb/table.h"



namespace ROCKSDB_NAMESPACE {



struct EnvOptions;



class Status;

class RandomAccessFile;

class WritableFile;

class Table;

class TableBuilder;



class AdaptiveTableFactory : public TableFactory {

 public:

  ~AdaptiveTableFactory() {}



  explicit AdaptiveTableFactory(

      std::shared_ptr<TableFactory> table_factory_to_write,

      std::shared_ptr<TableFactory> block_based_table_factory,

      std::shared_ptr<TableFactory> plain_table_factory,

      std::shared_ptr<TableFactory> cuckoo_table_factory);



  const char* Name() const override { return "AdaptiveTableFactory"; }



  using TableFactory::NewTableReader;

  Status NewTableReader(

      const ReadOptions& ro, const TableReaderOptions& table_reader_options,

      std::unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,

      std::unique_ptr<TableReader>* table,

      bool prefetch_index_and_filter_in_cache = true) const override;



  TableBuilder* NewTableBuilder(

      const TableBuilderOptions& table_builder_options,

      WritableFileWriter* file) const override;



  std::string GetPrintableOptions() const override;



  std::unique_ptr<TableFactory> Clone() const override {

    return std::make_unique<AdaptiveTableFactory>(*this);

  }



 private:

  std::shared_ptr<TableFactory> table_factory_to_write_;

  std::shared_ptr<TableFactory> block_based_table_factory_;

  std::shared_ptr<TableFactory> plain_table_factory_;

  std::shared_ptr<TableFactory> cuckoo_table_factory_;

};



}  // namespace ROCKSDB_NAMESPACE