// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).// All rights reserved.// This component and the accompanying materials are made available// under the terms of "Eclipse Public License v1.0"// which accompanies this distribution, and is available// at the URL "http://www.eclipse.org/legal/epl-v10.html".//// Initial Contributors:// Nokia Corporation - initial contribution.//// Contributors://// Description://#ifndef __CACHEBASE_H__#define __CACHEBASE_H__#include <e32base.h>#include <e32cmn.h>/**A cache base-class providing basic functionality for resolving a cached item.*/NONSHARABLE_CLASS(CCacheBase): public CBase { public: void BeginUpdate(); void EndUpdate();protected: CCacheBase(); ~CCacheBase(); virtual TInt UseL(TInt aHandle) = 0; virtual const CBase* Resolve(TInt aHandle);protected: struct TCacheEntry { TCacheEntry(TInt aHandle) { iHandle = aHandle; } TInt iHandle; TBool iIsUsed; CBase* iCachedItem; };protected: RArray<TCacheEntry> iCachedItems; };#endif //__CACHEBASE_H__