--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingfw/msgsrvnstore/server/inc/CMsvCachedStore.h	Wed Nov 03 22:41:46 2010 +0530
@@ -0,0 +1,140 @@
+// Copyright (c) 2001-2009 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 __CMSVCACHEDSTORE_H__
+#define __CMSVCACHEDSTORE_H__
+
+#include <e32base.h>
+#include <f32file.h>
+#include <s32mem.h>
+
+class CMsvStore;
+class RFileWriteStream;
+
+#include "MSVSTD.H"
+
+class MMsvStoreManager;
+
+/**
+
+The TPairedTUidHBufC8  class
+
+ Implementes a uid/HBufC8 pair, with functions to load/save them to/from a file
+
+*/
+class TPairedTUidHBufC8
+/**
+@internalComponent
+@released
+*/
+	{
+public:
+	TPairedTUidHBufC8();
+	TUid	iUid;
+	HBufC8 *iBuf;
+	void ExternalizeL(RWriteStream& aStream) const;
+	void InternalizeL(RReadStream& aStream);
+	};
+
+
+/**
+
+The CMsvCachedStore  class
+
+ Implementes a set of uid/HBufC8 pairs, and persists them to a file
+ Replaces a Dictionary Store in the message server. The difference
+ being that this class keeps all the pairs in memory.
+
+*/
+class CMsvCachedStore : public CBase
+/**
+@internalComponent
+@released
+*/
+	{
+public:
+
+	static CMsvCachedStore* OpenL(TMsvId aId, MMsvStoreManager& aStoreManager, TBool aReadOnly);
+
+#if (defined SYMBIAN_MESSAGESTORE_HEADER_BODY_USING_SQLDB)
+	static CMsvCachedStore* OpenL(TMsvId aId, MMsvStoreManager& aStoreManager, TBool aReadOnly,TUid aMtmId);
+	void AssignL(CHeaderFields* aHeaderFields);
+	void GetHeaderL(TUid aUid, CHeaderFields*& aHeaderFields);
+	void LoadHeaderEntryL(const TUid aMtmId,TBool aReadOnly);
+#endif	
+
+	TInt Size() const;
+	void DeleteL();
+
+	TBool IsNullL() const;
+	TBool IsPresentL(TUid aUid) const;
+	void Remove(TUid aUid);
+	void RemoveL(TUid aUid);
+	void Revert();
+	void RevertL();
+	TInt Commit(); 
+	void CommitL();
+
+	~CMsvCachedStore();
+private:
+	HBufC8* GetStreamL(TUid aUid) const;
+	void CreateOrReplaceStreamL(TUid aUid, CBufBase &aBuf);
+	TInt FindStream(TUid aUid,TInt &pos) const;
+	TInt DeleteStream(TUid aUid);
+
+	CMsvCachedStore(TMsvId aId, MMsvStoreManager& aStoreManager);
+
+	void CleanArray();
+	static HBufC8* FlattenLC(CBufBase &aBuf);
+
+	void ConstructL(TBool aReadOnly);
+#if (defined SYMBIAN_MESSAGESTORE_HEADER_BODY_USING_SQLDB)
+	void ConstructDBL(TBool aReadOnly,TUid aMtmId);
+#endif
+	
+	void LoadL(RFile &aFile);
+	void SaveL();
+	void WriteToFileStreamL(RFileWriteStream &aOut);
+#if (defined SYMBIAN_MESSAGESTORE_HEADER_BODY_USING_SQLDB)	
+public:
+	TUid iMtmId;
+	RPointerArray<CHeaderFields> iHeaderFieldList;
+	TBool isBodyPartDeleted;
+	TBool isNewEntry;
+	TBool isDbStore;
+#endif		
+private:
+
+
+	CArrayFix<TPairedTUidHBufC8> *iStreams;
+	TInt   iReaderCount;
+	TInt   iWriterCount;
+	
+	const TMsvId iEntryId;
+	MMsvStoreManager& iStoreManager;
+	TInt iSize;
+
+//
+#if (defined SYMBIAN_MESSAGESTORE_HEADER_BODY_USING_SQLDB)
+friend class CMsvStore;
+#endif
+friend class RMsvReadStream;
+friend class RMsvWriteStream;
+friend class HMsvReadBuf;
+friend class HMsvWriteBuf;
+};
+
+
+#endif