poco/Foundation/include/Poco/AccessExpirationDecorator.h

106 lines
2.8 KiB
C++

//
// AccessExpirationDecorator.h
//
// $Id: //poco/Main/Foundation/include/Poco/AccessExpirationDecorator.h#2 $
//
// Library: Foundation
// Package: Events
// Module: AccessExpirationDecorator
//
// Implementation of the AccessExpirationDecorator template.
//
// Copyright (c) 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 Foundation_AccessExpirationDecorator_INCLUDED
#define Foundation_AccessExpirationDecorator_INCLUDED
#include "Poco/Timestamp.h"
#include "Poco/Timespan.h"
namespace Poco {
template <typename TArgs>
class AccessExpirationDecorator
/// AccessExpirationDecorator adds an expiration method to values so that they can be used
/// with the UniqueAccessExpireCache
{
public:
AccessExpirationDecorator():
_value(),
_span()
{
}
AccessExpirationDecorator(const TArgs& p, const Poco::Timespan::TimeDiff& diffInMs):
/// Creates an element that will expire in diff milliseconds
_value(p),
_span(diffInMs*1000)
{
}
AccessExpirationDecorator(const TArgs& p, const Poco::Timespan& timeSpan):
/// Creates an element that will expire after the given timeSpan
_value(p),
_span(timeSpan)
{
}
~AccessExpirationDecorator()
{
}
const Poco::Timespan& getTimeout() const
{
return _span;
}
const TArgs& value() const
{
return _value;
}
TArgs& value()
{
return _value;
}
private:
TArgs _value;
Timespan _span;
};
} // namespace Poco
#endif