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115 lines
3.0 KiB
C++
115 lines
3.0 KiB
C++
//
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// ExpirationDecorator.h
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//
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// $Id: //poco/1.4/Foundation/include/Poco/ExpirationDecorator.h#1 $
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//
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// Library: Foundation
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// Package: Events
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// Module: ExpirationDecorator
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//
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// Implementation of the ExpirationDecorator template.
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//
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// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_ExpirationDecorator_INCLUDED
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#define Foundation_ExpirationDecorator_INCLUDED
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#include "Poco/Timestamp.h"
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#include "Poco/Timespan.h"
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namespace Poco {
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template <typename TArgs>
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class ExpirationDecorator
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/// ExpirationDecorator adds an expiration method to values so that they can be used
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/// with the UniqueExpireCache.
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{
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public:
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ExpirationDecorator():
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_value(),
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_expiresAt()
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{
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}
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ExpirationDecorator(const TArgs& p, const Poco::Timespan::TimeDiff& diffInMs):
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/// Creates an element that will expire in diff milliseconds
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_value(p),
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_expiresAt()
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{
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_expiresAt += (diffInMs*1000);
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}
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ExpirationDecorator(const TArgs& p, const Poco::Timespan& timeSpan):
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/// Creates an element that will expire after the given timeSpan
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_value(p),
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_expiresAt()
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{
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_expiresAt += timeSpan.totalMicroseconds();
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}
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ExpirationDecorator(const TArgs& p, const Poco::Timestamp& timeStamp):
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/// Creates an element that will expire at the given time point
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_value(p),
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_expiresAt(timeStamp)
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{
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}
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~ExpirationDecorator()
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{
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}
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const Poco::Timestamp& getExpiration() const
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{
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return _expiresAt;
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}
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const TArgs& value() const
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{
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return _value;
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}
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TArgs& value()
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{
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return _value;
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}
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private:
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TArgs _value;
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Timestamp _expiresAt;
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};
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} // namespace Poco
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#endif // Foundation_ExpirationDecorator_INCLUDED
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