/*

* Copyright (c) 2009-2010 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:

* Implementation of bearer priority array cache.

*

*/

#ifndef CMMBEARERPRIORITYCACHE_H_

#define CMMBEARERPRIORITYCACHE_H_

#include <e32base.h>

#include <metadatabase.h>

class CCmmBearerPriority;

class CCmmTransactionHandler;

NONSHARABLE_CLASS( CCmmBearerPriorityCache ) : public CBase

    {

public:

    /**

     * Two phased constuction.

     */

    static CCmmBearerPriorityCache* NewL(

            CCmmTransactionHandler* aTrans,

            CommsDat::TMDBElementId aBearerPriorityTableId );

    /**

     * Two phased constuction.

     */

    static CCmmBearerPriorityCache* NewLC(

            CCmmTransactionHandler* aTrans,

            CommsDat::TMDBElementId aBearerPriorityTableId );

    /**

     * Destructor.

     */

    ~CCmmBearerPriorityCache();

private:

    /**

     * Constructor.

     */

    CCmmBearerPriorityCache(

            CCmmTransactionHandler* aTrans,

            CommsDat::TMDBElementId aBearerPriorityTableId );

    /**

     * 2nd phase constructor.

     * Reads the bearer priorities from CommsDat and stores them to own array.

     */

    void ConstructL();

public:

    /**

     * Updates the bearer priority array with the contents of aArray.

     */

    void UpdateL( const RPointerArray<CCmmBearerPriority>& aArray );

    /**

     * Copies the cache's contents to aArray.

     */

    void CopyL( RPointerArray<CCmmBearerPriority>& aArray ) const;

    /**

     * Get the priority value for a service type name from the bearer priority

     * cache.

     */

    TUint GetPriority( const TDesC& aServiceType ) const;

private:

    void ReadL();

private:

    // Database transaction handler.

    CCmmTransactionHandler* iTrans; // Not owned.

    // Cached contents of the bearer priority array.

    RPointerArray<CCmmBearerPriority> iArray; // Owns contents.

    // Global bearer type priorization table ID.

    CommsDat::TMDBElementId iBearerPriorityTableId;

    };

#endif // CMMBEARERPRIORITYCACHE_H_

// End of file