/*

* Copyright (c) 2004-2005 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

* which accompanies this distribution, and is available

* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:       Interface class describing class that may be used as

*                 output stream for dom tree

*

*/

#ifndef XMLENGINE_MOUTPUTSTREAM_H_INCLUDED

#define XMLENGINE_MOUTPUTSTREAM_H_INCLUDED

#include <e32base.h>

/**

 * MXmlEngOutputStream is used by XML Engine to write serialized XML data

 * to stream. This interface should be implemented by client application

 * when RXmlEngDocument::SaveL() method is used to serialize xml data to stream.

 *

 * @lib XmlEngineDOM.lib

 * @since S60 v3.1

 */

class MXmlEngOutputStream

    {

public:

    /**

     * Callback for writing a buffer with data to output stream

     *

     * @since S60 v3.1

     * @return number of bytes written or -1 in case of error

     */

    virtual TInt Write(const TDesC8& aBuffer) = 0;

    /**

     * Callback for closing output stream

     *

     * @since S60 v3.1

     * @return 

     *       0 is succeeded, 

     *      -1 in case of error

     */

    virtual TInt Close() = 0;

    };

#endif /* XMLENGINE_MOUTPUTSTREAM_H_INCLUDED */