/*

* Copyright (c) 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: Message iterator interface

*

*/

#ifndef MMESSAGEITERATOR_H

#define MMESSAGEITERATOR_H

#include <emailapidefs.h>

namespace EmailInterface {

class MEmailMessage;

/**

 * Iterator for email messages. 

 * @since S60 v5.0

 */

class MMessageIterator : public MEmailInterface

{

public:

    /**

    * Returns next message. When all messages are iterated, returns NULL

    * @return next message. Ownership is not transferred.

    */

    virtual MEmailMessage* NextL() = 0;

    /**

    * Returns previous message. When first message is reached, returns NULL

    * @return previous message. Ownership not is transferred.

    */

    virtual MEmailMessage* PreviousL() = 0;

    /**

    * Returns amount of messages accessible from the iterator.

    * @return message count

    */

    virtual TUint Count() const = 0;

};

} // EmailInterface

#endif // MMESSAGEITERATOR_H