d057e8326d
Summary: - Changed MergeOperator, CompactionFilter, and CompactionFilterFactory into Customizable classes. - Added Options/Configurable/Object Registration for TTL and Cassandra variants - Changed the StringAppend MergeOperators to accept a string delimiter rather than a simple char. Made the delimiter into a configurable option - Added tests for new functionality Pull Request resolved: https://github.com/facebook/rocksdb/pull/8481 Reviewed By: zhichao-cao Differential Revision: D30136050 Pulled By: mrambacher fbshipit-source-id: 271d1772835935b6773abaf018ee71e42f9491af
29 lines
845 B
C++
29 lines
845 B
C++
// 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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#ifndef ROCKSDB_LITE
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#pragma once
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#include <string>
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#include "rocksdb/compaction_filter.h"
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#include "rocksdb/slice.h"
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namespace ROCKSDB_NAMESPACE {
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class RemoveEmptyValueCompactionFilter : public CompactionFilter {
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public:
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static const char* kClassName() { return "RemoveEmptyValueCompactionFilter"; }
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const char* Name() const override { return kClassName(); }
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bool Filter(int level, const Slice& key, const Slice& existing_value,
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std::string* new_value, bool* value_changed) const override;
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};
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} // namespace ROCKSDB_NAMESPACE
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#endif // !ROCKSDB_LITE
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