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Diffstat (limited to 'src/rocksdb/utilities/merge_operators.h')
-rw-r--r-- | src/rocksdb/utilities/merge_operators.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/rocksdb/utilities/merge_operators.h b/src/rocksdb/utilities/merge_operators.h new file mode 100644 index 000000000..9b90107e3 --- /dev/null +++ b/src/rocksdb/utilities/merge_operators.h @@ -0,0 +1,36 @@ +// 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 |