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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
#pragma once
#include <stdio.h>
#include <memory>
#include <string>
#include "rocksdb/merge_operator.h"
namespace ROCKSDB_NAMESPACE {
class MergeOperators {
public:
static std::shared_ptr<MergeOperator> CreatePutOperator();
static std::shared_ptr<MergeOperator> CreateDeprecatedPutOperator();
static std::shared_ptr<MergeOperator> CreateUInt64AddOperator();
static std::shared_ptr<MergeOperator> CreateStringAppendOperator();
static std::shared_ptr<MergeOperator> CreateStringAppendOperator(
char delim_char);
static std::shared_ptr<MergeOperator> CreateStringAppendOperator(
const std::string& delim);
static std::shared_ptr<MergeOperator> CreateStringAppendTESTOperator();
static std::shared_ptr<MergeOperator> CreateMaxOperator();
static std::shared_ptr<MergeOperator> CreateBytesXOROperator();
static std::shared_ptr<MergeOperator> CreateSortOperator();
// Will return a different merge operator depending on the string.
static std::shared_ptr<MergeOperator> CreateFromStringId(
const std::string& name);
};
} // namespace ROCKSDB_NAMESPACE
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