1 // Copyright (c) 2006-2009 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 __DSCDATABASE_H__

    17 #define __DSCDATABASE_H__

    18 

    19 #include <d32dbms.h>

    20 #include <dscstoredefs.h>

    21 

    22 

    23 

    24 extern const TInt KDscStoreMaxStringLength;

    25 

    26 class CDscItem;

    27 

    28 /** 

    29 A database of DSC items

    30 

    31 @internalComponent 

    32 @released

    33 */

    34 class CDscDatabase: public CBase

    35 	{

    36 public:

    37 	static CDscDatabase* NewL();

    38 	~CDscDatabase();

    39 

    40 	void CreateDscL(const TUid& aDscId, const TDesC& aDescription);

    41 	void DeleteDscL(const TUid& aDscId);

    42 	TBool DscExistsL(const TUid& aDscId) const;

    43 	void GetDscDescriptionL(const TUid &aDscId, TDes& aDescription) const;

    44 

    45 	void AddItemL(CDscItem& aItem, TDscPosition aPos);

    46 	void ReadItemL(CDscItem& aItem);

    47 	void DeleteItemL(const CDscItem& aItem);

    48 

    49 	void UpdateItemL(const CDscItem& aItem);

    50 	TBool ItemExistsL(const CDscItem& aItem) const;

    51 

    52 	void EnumOpenLC(const TUid& aDscId);

    53 	CDscItem* EnumReadNextL();

    54 	void EnumClose();

    55 	

    56 	static TInt MaxStringLength();

    57 	

    58 private:

    59 	CDscDatabase();

    60 	void ConstructL();	

    61 	void CreateDatabaseL(const TDesC& aDatabaseName);

    62 	void CreateTablesL();

    63 

    64 	void QueryItemL(RDbView& aView,  const CDscItem& aItem) const;

    65 	void ReadDscItemL(RDbRowSet& rowSet, CDscItem& aItem) const;

    66 	TInt GetNextItemIdL(TDscPosition aPos, const TUid& aDscId) const;

    67 

    68 	void Rollback();

    69 	void DatabaseBeginLC();

    70 	void DatabaseCommitL();

    71 	static void CleanupDatabaseRollback(TAny *aDatabase);

    72 	static void CleanupEnumRollback(TAny *aDatabase);

    73 	void EnumBeginLC();

    74 	TInt DeleteDb();

    75 	static void GetDatabaseNameL(TDes& aDatabaseName);

    76 	

    77 private:

    78 	RDbs iDbsSession;	

    79 	mutable RDbNamedDatabase iDatabase;

    80 	RDbView iView;

    81 	TBool iIsEnumOpened;

    82 	};

    83 

    84 #endif // __DSCDATABASE_H__