// // ExpireLRUCache.h // // $Id: //poco/1.2/Foundation/include/Poco/ExpireLRUCache.h#4 $ // // Library: Foundation // Package: Cache // Module: ExpireLRUCache // // Definition of the ExpireLRUCache class. // // 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_ExpireLRUCache_INCLUDED #define Foundation_ExpireLRUCache_INCLUDED #include "Poco/AbstractCache.h" #include "Poco/StrategyCollection.h" #include "Poco/ExpireStrategy.h" #include "Poco/LRUStrategy.h" namespace Poco { template < class TKey, class TValue > class ExpireLRUCache: public AbstractCache > /// An ExpireLRUCache combines LRU caching and time based expire caching. /// It cache entries for a fixed time period (per default 10 minutes) /// but also limits the size of the cache (per default: 1024). { public: ExpireLRUCache(long cacheSize = 1024, Timestamp::TimeDiff expire = 600000): AbstractCache >(StrategyCollection()) { this->_strategy.pushBack(new LRUStrategy(cacheSize)); this->_strategy.pushBack(new ExpireStrategy(expire)); } ~ExpireLRUCache() { } private: ExpireLRUCache(const ExpireLRUCache& aCache); ExpireLRUCache& operator = (const ExpireLRUCache& aCache); }; } // namespace Poco #endif