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// ArchiveStrategy.h
//
// Library: Data
// Package: Logging
// Module: ArchiveStrategy
//
// Definition of the ArchiveStrategy class and subclasses.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#ifndef Data_ArchiveStrategy_INCLUDED
#define Data_ArchiveStrategy_INCLUDED
#include "Poco/Data/Data.h"
#include "Poco/Data/Session.h"
#include "Poco/DateTime.h"
#include "Poco/Timespan.h"
#include "Poco/Dynamic/Var.h"
#include "Poco/SharedPtr.h"
namespace Poco {
namespace Data {
class Data_API ArchiveStrategy
/// The ArchiveStrategy is used by SQLChannel to archive log rows.
{
public:
static const std::string DEFAULT_ARCHIVE_DESTINATION;
ArchiveStrategy(const std::string& connector,
const std::string& connect,
const std::string& source,
const std::string& destination = DEFAULT_ARCHIVE_DESTINATION);
/// Creates archive strategy.
virtual ~ArchiveStrategy();
/// Destroys archive strategy.
void open();
/// Opens the session.
virtual void archive() = 0;
/// Archives the rows.
const std::string& getSource() const;
/// Returns the name of the source table containing rows to be archived.
void setSource(const std::string& source);
/// Sets the name of the source table.
const std::string& getDestination() const;
/// Returns the name of the destination table for rows to be archived.
void setDestination(const std::string& destination);
/// Sets the name of the destination table.
virtual const std::string& getThreshold() const = 0;
/// Returns the archive threshold.
virtual void setThreshold(const std::string& threshold) = 0;
/// Sets the archive threshold.
protected:
typedef Poco::SharedPtr<Session> SessionPtr;
typedef Poco::SharedPtr<Statement> StatementPtr;
Session& session();
void setCopyStatement();
void setDeleteStatement();
void setCountStatement();
Statement& getCopyStatement();
Statement& getDeleteStatement();
Statement& getCountStatement();
private:
ArchiveStrategy();
ArchiveStrategy(const ArchiveStrategy&);
ArchiveStrategy& operator = (const ArchiveStrategy&);
std::string _connector;
std::string _connect;
SessionPtr _pSession;
StatementPtr _pCopyStatement;
StatementPtr _pDeleteStatement;
StatementPtr _pCountStatement;
std::string _source;
std::string _destination;
};
//
// inlines
//
inline const std::string& ArchiveStrategy::getSource() const
{
return _source;
}
inline void ArchiveStrategy::setSource(const std::string& source)
{
_source = source;
}
inline void ArchiveStrategy::setDestination(const std::string& destination)
{
_destination = destination;
}
inline const std::string& ArchiveStrategy::getDestination() const
{
return _destination;
}
inline Session& ArchiveStrategy::session()
{
return *_pSession;
}
inline void ArchiveStrategy::setCopyStatement()
{
_pCopyStatement = new Statement(*_pSession);
}
inline void ArchiveStrategy::setDeleteStatement()
{
_pDeleteStatement = new Statement(*_pSession);
}
inline void ArchiveStrategy::setCountStatement()
{
_pCountStatement = new Statement(*_pSession);
}
inline Statement& ArchiveStrategy::getCopyStatement()
{
return *_pCopyStatement;
}
inline Statement& ArchiveStrategy::getDeleteStatement()
{
return *_pDeleteStatement;
}
inline Statement& ArchiveStrategy::getCountStatement()
{
return *_pCountStatement;
}
//
// ArchiveByAgeStrategy
//
class Data_API ArchiveByAgeStrategy: public ArchiveStrategy
/// Archives rows scheduled for archiving.
{
public:
ArchiveByAgeStrategy(const std::string& connector,
const std::string& connect,
const std::string& sourceTable,
const std::string& destinationTable = DEFAULT_ARCHIVE_DESTINATION);
~ArchiveByAgeStrategy();
void archive();
const std::string& getThreshold() const;
/// Returns the archive threshold.
void setThreshold(const std::string& threshold);
/// Sets the archive threshold.
private:
ArchiveByAgeStrategy();
ArchiveByAgeStrategy(const ArchiveByAgeStrategy&);
ArchiveByAgeStrategy& operator = (const ArchiveByAgeStrategy&);
void initStatements();
Timespan _maxAge;
std::string _ageString;
DateTime _archiveDateTime;
Poco::Dynamic::Var _archiveCount;
};
//
// inlines
//
inline const std::string& ArchiveByAgeStrategy::getThreshold() const
{
return _ageString;
}
} } // namespace Poco::Data
#endif // Data_ArchiveStrategy_INCLUDED
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