sl@0: // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #if !defined(__CHECKEDUID_H__)
sl@0: #define __CHECKEDUID_H__
sl@0: 
sl@0: #include <pcstore/pcstoredef.h>
sl@0: #include <pcstore/uid.h>
sl@0: 
sl@0: namespace PCStore
sl@0: {
sl@0: class CDes8;
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: 
sl@0: Encapsulates a set of three unique identifiers (UIDs) which, in combination, 
sl@0: identify a system object such as a GUI application or a DLL. The three
sl@0: component UIDs are referred to as UID1, UID2 and UID3.
sl@0: 
sl@0: An object of this type is referred to as a compound identifier or a UID type.
sl@0: */
sl@0: class TUidType
sl@0: 	{
sl@0: public:
sl@0: 	TUidType();
sl@0: 	TUidType(TUid aUid1);
sl@0: 	TUidType(TUid aUid1, TUid aUid2);
sl@0: 	TUidType(TUid aUid1, TUid aUid2, TUid aUid3);
sl@0: 	TBool operator !=(const TUidType& aUidType) const;
sl@0: 	TBool operator ==(const TUidType& aUidType) const ;
sl@0: 	const TUid& operator[](TInt aIndex) const;
sl@0: 	TBool IsValid() const ;
sl@0: 
sl@0: private:
sl@0: 	TUid MostDerived() const;
sl@0: 
sl@0: private:
sl@0: 	TUid iUid[3];
sl@0: 	};
sl@0: 
sl@0: 
sl@0: /**
sl@0: @internalComponent
sl@0: 
sl@0: Packages a Uid type together with a checksum.
sl@0: 
sl@0: @see TUidType
sl@0: */
sl@0: class TCheckedUid
sl@0: 	{
sl@0: public:
sl@0: 	TCheckedUid();
sl@0: 	TCheckedUid(const TUidType& aUidType);
sl@0: 	TCheckedUid(const CDes8& aDes);
sl@0: 	
sl@0: 	void Set(const TUidType& aUidType);
sl@0: 	void Set(const CDes8& aDes);
sl@0: 	CDes8 Des() const;
sl@0: 	const TUidType&  UidType() const;
sl@0: 
sl@0: private:
sl@0: 	TUint Check() const;
sl@0: 
sl@0: private:
sl@0: 	TUidType iType;
sl@0: 	TUint32 iCheck;
sl@0: 	};
sl@0: 
sl@0: class CStoreWriteStream;
sl@0: CStoreWriteStream& operator<<(CStoreWriteStream& aStream,const TCheckedUid& aUid);
sl@0: 
sl@0: class CStoreReadStream;
sl@0: CStoreReadStream& operator>>(CStoreReadStream& aStream, TCheckedUid& aUid);
sl@0: }
sl@0: #endif // !defined(__CHECKEDUID_H__)