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