/*

* Copyright (c) 2004-2009 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          : CServerQuery.h

* Part of       : ServerResolver

* Version       : SIP/4.0 

*

*/

/**

 @internalComponent

*/

#ifndef CSERVERQUERY_H

#define CSERVERQUERY_H

//INCLUDES

#include <e32base.h>

#include "MSIPServerQuery.h"

#include "_sipcodecdefs.h"

// FORWARD DECLARATIONS

class CSIPQueryConditionBase;

class MSIPServerResolverObserver;

class CSIPQueryData;

class MSIPHostResolver;

// CLASS DEFINITION

/**

 * CServerQuery implements a

 */

class CServerQuery : public CBase, public MSIPServerQuery

	{

	public:// Constructors and destructor

		/**

	 	* Creates a new CServerQuery instance

	 	* @param aObserver callback that will be used when resolving 

	 	*    	has been completed. The ownership is not transferred.

	 	* @param aQueryData for storing the query data. 

	 	*		The ownership is transferred.

	 	* @returns a new instance of CServerQuery

	 	*/

		static CServerQuery* NewL( MSIPServerResolverObserver* aObserver,

							  	   CSIPQueryData* aQueryData );

    	/**

	 	* Creates a new CServerQuery instance 

	 	* and pushes it to CleanupStack

	 	* @param aObserver callback that will be used when resolving 

	 	*    	has been completed. The ownership is not transferred.

	 	* @param aQueryData for storing the query data. 

	 	*		The ownership is transferred.

	 	* @returns a new instance of CServerQuery

	 	*/

		static CServerQuery* NewLC( MSIPServerResolverObserver* aObserver, 

							   	    CSIPQueryData* aQueryData );

		/**

	 	* Destructor.

	 	*/			   	    

		~CServerQuery();

	public:// From MSIPServerQuery

		CSIPQueryData& QueryData();

	public:

		void Query( MSIPHostResolver& aResolver );

		TBool HandleQueryResultL( TInt aStatus );

		MSIPServerResolverObserver* ServerResolverObserver(); 

		void SetQueryConditionL( CSIPQueryConditionBase* aQueryCondition ); 

	public:// Data

		static const TInt iOffset;

		TSglQueLink iLink;

	private:// Constructors and destructor

		void ConstructL( MSIPServerResolverObserver* aObserver, 

					 	 CSIPQueryData* aQueryData );

		CServerQuery();

	private:// Data

		CSIPQueryConditionBase* iQueryCondition;

		//Not owned

		MSIPServerResolverObserver* iObserver;

		CSIPQueryData* iQueryData;

	private: // For testing purposes

		UNIT_TEST( CServerQueryTest)	

	};

#endif // end of CSERVERQUERY_H

// End of File