1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #ifndef __AGSENTRYMANAGER_H__

    17 #define __AGSENTRYMANAGER_H__

    18 

    19 #include <s32std.h>

    20 

    21 // ---------------------- Referenced classes -----------------------------------

    22 class CAgnEntry;

    23 class TAgnEntryId;

    24 class TAgnEntryIter;

    25 

    26 class CAgnEntryManager : public CBase

    27 /**

    28 Manages adding,deleting and updating entries in the store.

    29 @internalAll

    30 @released

    31 */

    32 	{

    33 public:

    34 	friend class TAgnEntryIter;

    35 	enum TBufferType {ETodo,ERpt,EGeneral,EIterator};

    36 	

    37 	static CAgnEntryManager* NewL();

    38 	~CAgnEntryManager();

    39 	TStreamId AddEntryL(CAgnEntry& aEntry);

    40 	TStreamId DeleteEntryL(const TAgnEntryId& aEntryId);

    41 	CAgnEntry* FetchEntryL(const TAgnEntryId& aEntryId);

    42 	TStreamId UpdateEntryL(CAgnEntry& aEntry,TStreamId& aNewStreamId);

    43 	void StoreBuffersL();

    44 	void FlushBuffersL();

    45 	void FreeBuffers();

    46 	inline TBool BufferedDeleting() const;

    47 	void SetBufferedDeleting(TBool aSetting);

    48 	TAgnEntryId NextAvailableIdL(TBufferType aBufferType);

    49 	inline void SetStore(CStreamStore& aStore);

    50 	inline CStreamStore& StreamStore() const;

    51 	inline TBool BufferHasBeenStored() const;

    52 	void Reset();

    53 	TInt RestoreBufferL(const TStreamId& aStreamId);

    54 	void InternalizeL(RReadStream& aStream);

    55 	void ExternalizeL(RWriteStream& aStream) const;

    56 	void CopyStreamIds(const CAgnEntryManager& aOriginalManager);

    57 private:

    58 	class TBufItem

    59 	/**

    60 	@internalAll

    61 	@released

    62 	*/

    63 		{

    64 	public:

    65 		inline TBufItem() {};

    66 		inline TBufItem(CAgnEntry* aEntry, TBool aToBeDeleted=EFalse); 

    67 		inline TBool ToBeDeleted() const;

    68 		inline void SetToBeDeleted(TBool aSetting);

    69 		inline void SetEntry(CAgnEntry* aEntry);

    70 		inline CAgnEntry* Entry() const;

    71 	private:		

    72 		CAgnEntry*	iEntry;

    73 		TBool		iToBeDeleted;

    74 		};

    75 	typedef CArrayFixFlat<TBufItem> CBuffer;

    76 

    77 	CAgnEntryManager();

    78 	const CAgnEntry* operator[](TInt aIndex) const;

    79 	void StoreBufferL(const TStreamId& aStreamId, const CBuffer* aBuffer, TBufferType aType);

    80 	TUint FindUniqueIdPortion(const CBuffer* aBuffer);

    81 	CAgnEntry* SearchBuffers(const TAgnEntryId& aEntryId, TInt& aPos);

    82 	void SetBufferHasBeenStored(TBool aHasBeenStored, TBufferType aType);

    83 	void FreeBuffer(TBufferType aBufferType);

    84 	void DeleteEntriesInBufferFromStoreL(CBuffer* aBuffer, TInt& aNumEntriesToDelete);	

    85 	TStreamId DoAddEntryL(CAgnEntry& aEntry, TStreamId& aCurrentStreamId, TStreamId& aNextAvailableStreamId, CBuffer* aBuffer, TBufferType aBufferType);

    86 	TStreamId DoDeleteEntryL(CAgnEntry* aEntry, CBuffer* aBuffer, TInt& aNumEntriesToDelete, TStreamId& aNextAvailableStreamId,

    87 							 const TStreamId& aCurrentStreamId, TBufferType aBufferType, TInt aPos);

    88 	void StoreAndMaybeFreeBuffersL(TBool aFreeBuffers);

    89 

    90 	CBuffer*				iGeneralBuffer;

    91 	CBuffer*				iTodoBuffer;

    92 	CBuffer*				iRptBuffer;	

    93 	CBuffer*				iIteratorBuffer;

    94 	TStreamId				iNextAvailableGeneralStreamId;

    95 	TStreamId				iNextAvailableTodoStreamId;

    96 	TStreamId				iNextAvailableRptStreamId;

    97 	TStreamId				iCurrentGeneralStreamId;

    98 	TStreamId				iCurrentTodoStreamId;

    99 	TStreamId				iCurrentRptStreamId;

   100 	TInt					iNumGeneralEntriesToDelete;

   101 	TInt					iNumTodoEntriesToDelete;

   102 	TInt					iNumRptEntriesToDelete;

   103 	TBool					iGeneralBufferHasBeenStored;

   104 	TBool					iTodoBufferHasBeenStored;

   105 	TBool					iRptBufferHasBeenStored;

   106 	TBool					iBufferHasBeenStored;

   107 	CStreamStore*			iStore;	

   108 	TBool					iBufferedDeleting;

   109 	TBufferType				iLastRestored;

   110 	mutable TBool			iUseIteratorBuffer;

   111 	};

   112 

   113 #include "agsentrymanager.inl"

   114 

   115 #endif