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 #if !defined(__CHECKEDUID_H__)

    17 #define __CHECKEDUID_H__

    18 

    19 #include <pcstore/pcstoredef.h>

    20 #include <pcstore/uid.h>

    21 

    22 namespace PCStore

    23 {

    24 class CDes8;

    25 

    26 /**

    27 @internalComponent

    28 

    29 Encapsulates a set of three unique identifiers (UIDs) which, in combination, 

    30 identify a system object such as a GUI application or a DLL. The three

    31 component UIDs are referred to as UID1, UID2 and UID3.

    32 

    33 An object of this type is referred to as a compound identifier or a UID type.

    34 */

    35 class TUidType

    36 	{

    37 public:

    38 	TUidType();

    39 	TUidType(TUid aUid1);

    40 	TUidType(TUid aUid1, TUid aUid2);

    41 	TUidType(TUid aUid1, TUid aUid2, TUid aUid3);

    42 	TBool operator !=(const TUidType& aUidType) const;

    43 	TBool operator ==(const TUidType& aUidType) const ;

    44 	const TUid& operator[](TInt aIndex) const;

    45 	TBool IsValid() const ;

    46 

    47 private:

    48 	TUid MostDerived() const;

    49 

    50 private:

    51 	TUid iUid[3];

    52 	};

    53 

    54 

    55 /**

    56 @internalComponent

    57 

    58 Packages a Uid type together with a checksum.

    59 

    60 @see TUidType

    61 */

    62 class TCheckedUid

    63 	{

    64 public:

    65 	TCheckedUid();

    66 	TCheckedUid(const TUidType& aUidType);

    67 	TCheckedUid(const CDes8& aDes);

    68 	

    69 	void Set(const TUidType& aUidType);

    70 	void Set(const CDes8& aDes);

    71 	CDes8 Des() const;

    72 	const TUidType&  UidType() const;

    73 

    74 private:

    75 	TUint Check() const;

    76 

    77 private:

    78 	TUidType iType;

    79 	TUint32 iCheck;

    80 	};

    81 

    82 class CStoreWriteStream;

    83 CStoreWriteStream& operator<<(CStoreWriteStream& aStream,const TCheckedUid& aUid);

    84 

    85 class CStoreReadStream;

    86 CStoreReadStream& operator>>(CStoreReadStream& aStream, TCheckedUid& aUid);

    87 }

    88 #endif // !defined(__CHECKEDUID_H__)