new trunk (base for 1.5)

windows build only

Data/include/Poco/Data/ArchiveStrategy.h

@@ -0,0 +1,244 @@
+//
+// ArchiveStrategy.h
+//
+// $Id: //poco/Main/Data/include/Poco/ArchiveStrategy.h#1 $
+//
+// Library: Data
+// Package: Logging
+// Module:  ArchiveStrategy
+//
+// Definition of the ArchiveStrategy class and subclasses.
+//
+// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// Permission is hereby granted, free of charge, to any person or organization
+// obtaining a copy of the software and accompanying documentation covered by
+// this license (the "Software") to use, reproduce, display, distribute,
+// execute, and transmit the Software, and to prepare derivative works of the
+// Software, and to permit third-parties to whom the Software is furnished to
+// do so, all subject to the following:
+// 
+// The copyright notices in the Software and this entire statement, including
+// the above license grant, this restriction and the following disclaimer,
+// must be included in all copies of the Software, in whole or in part, and
+// all derivative works of the Software, unless such copies or derivative
+// works are solely in the form of machine-executable object code generated by
+// a source language processor.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
+// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
+// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
+// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+//
+
+
+#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