a143ef9b38
Summary: Change namespace from leveldb to rocksdb. This allows a single application to link in open-source leveldb code as well as rocksdb code into the same process. Test Plan: compile rocksdb Reviewers: emayanke Reviewed By: emayanke CC: leveldb Differential Revision: https://reviews.facebook.net/D13287
32 lines
783 B
C++
32 lines
783 B
C++
/**
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* A MergeOperator for rocksdb/leveldb that implements string append.
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* @author Deon Nicholas (dnicholas@fb.com)
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* Copyright 2013 Facebook
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*/
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#pragma once
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#include "rocksdb/merge_operator.h"
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#include "rocksdb/slice.h"
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namespace rocksdb {
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class StringAppendOperator : public AssociativeMergeOperator {
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public:
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StringAppendOperator(char delim_char); /// Constructor: specify delimiter
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virtual bool Merge(const Slice& key,
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const Slice* existing_value,
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const Slice& value,
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std::string* new_value,
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Logger* logger) const override;
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virtual const char* Name() const override;
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private:
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char delim_; // The delimiter is inserted between elements
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};
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} // namespace rocksdb
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