/*

* Copyright (c) 2005-2009 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:

* Name          : MSipDialogs.h

* Part of       : SIPDialogs

* Version       : SIP/4.0 

*

*/

/**

 @internalComponent

*/

#ifndef MSIPDIALOGS_H

#define MSIPDIALOGS_H

#include "SipStackServerDefs.h"

class MTransactionOwner;

class CSIPRequest;

class CSIPResponse;

/**

 * This class defines transaction owner for a dialog.

 * Transaction uses this class.

 */

class MSipDialogs

	{

    public:

	    /**

	    * Destructor.

	    */

	    virtual ~MSipDialogs() { }

	    /**

	    * Method for getting transaction owner for the dialog defined 

	    * in the request. If request is malformed, call-id matches one 

	    * of dialogs but to-tag or from-tag not match dialog's defined ones,

	    * error response is created and transaction owner is equal to 0.

        *

	    * @param aRequest SIP request

	    * @param aResponse SIP response

	    * @return aTransactionOwner Transaction owner or 0 if dialog not exists.

	    */

	    virtual MTransactionOwner* TransactionOwnerL(

	        CSIPRequest& aRequest,

	        CSIPResponse** aResponse) = 0;

	};

#endif // MSIPDIALOGS_H

// End of File