/*

* Copyright (c) 2006 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:   State machine interface. Used for the statemachine in the 

*                server drawer to keep track on when a transition should be made

*                and when not.

*

*/

#ifndef _UIDBLOCK_H_

#define _UIDBLOCK_H_

#include <e32base.h>

class CUidBlock : public CBase

	{

public:

	virtual TBool IsBlocked(const TUid& aFromUid, const TUid& aToUid) = 0;

	};

class CFullUidBlock : public CUidBlock

	{

public:

	CFullUidBlock(const TUid& aUid);

	TBool IsBlocked(const TUid& aFromUid, const TUid& aToUid);

private:

	const TUid iUid;

	};

class CPairedUidBlock : public CUidBlock

	{

public:

	CPairedUidBlock(const TUid& aUidFrom, const TUid& aToUid);

	TBool IsBlocked(const TUid& aFromUid, const TUid& aToUid);

private:

	const TUid iFromUid;

	const TUid iToUid;

	};

#endif