/*

* Copyright (c) 2005 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:  Presence attribute store proxy.

*

*/

#ifndef CPENGPRESENCEATTRMODELSTORAGEPROXY_H

#define CPENGPRESENCEATTRMODELSTORAGEPROXY_H

//  INCLUDES

#include "MPEngPresenceAttrManager.h"

#include <E32Base.h>

//FORWARD DECLARATIONS

class CPEngPresenceAttrModel;

class CPEngModelStoreEntryAdapter;

class MPEngStorageManager;

// CLASS DECLARATION

/**

 * Presence Storage support

 *

 * @since 3.0

 */

NONSHARABLE_CLASS( CPEngPresenceAttrModelStorageProxy ) : public CBase

    {

public:  // Constructors and destructor

    /**

     * Two-phased constructor.

     */

    static CPEngPresenceAttrModelStorageProxy* NewL( CPEngPresenceAttrModel& aAttributeModel );

    /**

     * Destructor.

     */

    virtual ~CPEngPresenceAttrModelStorageProxy();

private: // Constructors.

    /**

     * C++ default constructor.

     */

    CPEngPresenceAttrModelStorageProxy( CPEngPresenceAttrModel& aAttributeModel );

public: // Presence Storage.

    void ConnectStorageL( TBool aUserModel,

                          HBufC* aStoreId,

                          MPEngStorageManager& aStorageManager );

    TInt RetrieveFromStorageL();

    void StoreToStorageL( TBool aForceStore = EFalse ) const;

    void RemoveFromStorageL();

    TBool IsFromThisStorage( const MPEngStorageManager& aStorageManager ) const;

    void GainEditLockL( TBool aCreationAllowed );

    TInt StopEditSupport();

    TBool IsEditLocked() const;

    void ForceSendAttrEventIfNeededL() const;

private:    // Data

    //REF: The attribute model to store

    CPEngPresenceAttrModel&     iAttributeModel;

    //OWN: Store entry adapter. Lazy initalized

    CPEngModelStoreEntryAdapter*    iStoreEntry;

    //OWN: Does storage proxy instance own the edit lock?

    TBool   iEditLockOwned;

    //OWN: Is force notification needed?

    TBool   iForceNotifySidChange;

    };

#endif      // CPENGPRESENCEATTRMODELSTORAGEPROXY_H

// End of File