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57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
//
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// ExpireLRUCache.h
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//
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// Library: Foundation
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// Package: Cache
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// Module: ExpireLRUCache
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//
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// Definition of the ExpireLRUCache class.
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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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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef Foundation_ExpireLRUCache_INCLUDED
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#define Foundation_ExpireLRUCache_INCLUDED
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#include "Poco/AbstractCache.h"
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#include "Poco/ExpireStrategy.h"
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#include "Poco/LRUStrategy.h"
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#include "Poco/StrategyCollection.h"
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namespace Poco
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{
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template <class TKey, class TValue, class TMutex = FastMutex, class TEventMutex = FastMutex>
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class ExpireLRUCache : public AbstractCache<TKey, TValue, StrategyCollection<TKey, TValue>, TMutex, TEventMutex>
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/// An ExpireLRUCache combines LRU caching and time based expire caching.
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/// It cache entries for a fixed time period (per default 10 minutes)
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/// but also limits the size of the cache (per default: 1024).
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{
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public:
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ExpireLRUCache(long cacheSize = 1024, Timestamp::TimeDiff expire = 600000)
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: AbstractCache<TKey, TValue, StrategyCollection<TKey, TValue>, TMutex, TEventMutex>(StrategyCollection<TKey, TValue>())
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{
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this->_strategy.pushBack(new LRUStrategy<TKey, TValue>(cacheSize));
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this->_strategy.pushBack(new ExpireStrategy<TKey, TValue>(expire));
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}
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~ExpireLRUCache() { }
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private:
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ExpireLRUCache(const ExpireLRUCache & aCache);
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ExpireLRUCache & operator=(const ExpireLRUCache & aCache);
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};
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} // namespace Poco
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#endif // Foundation_ExpireLRUCache_INCLUDED
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