51 lines
1.2 KiB
C++
51 lines
1.2 KiB
C++
/*
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logger used by MemStorageManager to log in-memory updates
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uses SMI-File in database for logging.
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*/
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#ifndef ALGEBRAS_TEMPORAL2_DBUPDATELOGGER_H_
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#define ALGEBRAS_TEMPORAL2_DBUPDATELOGGER_H_
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#include <string>
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#include "Types.h"
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#include "SecondoSMI.h"
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// required for replay log
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// bad design: refactor to use callback interface/ allow registering callback
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#include "MemStorageManager.h"
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namespace temporal2algebra {
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class DbUpdateLogger {
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public:
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DbUpdateLogger(std::string database, std::string smiLogFileName);
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virtual ~DbUpdateLogger();
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void logCreateId(const MemStorageId id);
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void logSetBackRef(const MemStorageId& id,
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const BackReference& backRef, const Unit& finalUnit);
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void logAppend(const MemStorageId id, const Unit& unit);
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void logEnque(const BackReference& backRef, const Intime& intime);
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void logClear (const MemStorageId id);
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void logPushToFlobs(const MemStorageId id);
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void replayLog(MemStorageManager& manager);
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void truncateLog();
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int printLog();
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private:
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void writeLogRecord(const LogData& log);
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std::string database;
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std::string smiLogFileName;
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SmiRecordFile* smifile;
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};
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} /* namespace temporal2algebra */
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#endif /* ALGEBRAS_TEMPORAL2_DBUPDATELOGGER_H_ */
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