/*

* Copyright (c) 2008 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:  

 *

*/

#ifndef C_CPSTORAGE_H

#define C_CPSTORAGE_H

// FORWARD DECLARATIONS

class CLiwMap;

class CLiwGenericParamList;

class CLiwDefaultList;

/**

 *  Callback Interface for observing changes in Content Publisher Database  

 *

 *  @since S60 v5.0

 */

class MCPChangeNotifier

    {

public:

    /**

     * This method should be implemented by subscriber for changes in

     * database

     *

     * @param Map containing change information

     * @param Id of changed entry

     * @return 

     */

    virtual void HandleChangeL( CLiwDefaultList* aListOfMaps ) = 0;

    };

/**

 * Interface for CPS database implementations

 *

 */

class CCpStorage : public CBase

    {

public:

    /**

     * Fetches data from database

     *

     * @param aMap Filtering and sorting criteria

     * @param aList Target for results 

     */

    virtual void GetListL( const CLiwMap* aMap,

        CLiwGenericParamList& aList ) = 0;

    /**

     * Adds or Updates data & action to database

     * @param Map containing data item

     * @return id of added entry

     */

    virtual TInt32 AddL( const CLiwMap* aMap ) = 0;

    /**

     * Removes data item from database

     * @param Filtering and sorting criteria

     */

    virtual void RemoveL( const CLiwMap* aMap ) = 0;

    /**

     * Set database observer 

     * @param Callback pointer

     */

    virtual void SetCallback( MCPChangeNotifier* aCallback ) = 0;

    };

#endif //C_CPSTORAGE_H