/*

* 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: 

*

*/

#ifndef CNPDOCUMENTFIELD_H

#define CNPDOCUMENTFIELD_H

//  INCLUDES

#include "CNPDocumentFieldInterface.h"

// FORWARD DECLARATION

class CDocumentField; 

class CNPSearchDocument; 

// CLASS DECLARATION

/**

 * CNPDocumentField

 * Implements services described in MCPixNPSearcher. 

 * 

 * Maintains a reference count in the surrounding CNPSearchDocument, because 

 * CNPSearchDocument owns the object referred by iField. If CNPSearchDocument 

 * were to be destroyed, iField reference would become a dangerous reference

 * to invalid memory location. 

 */

class CNPDocumentField : public CNPDocumentFieldInterface

    {

public:

	/**

	 * @param aDocument ownership transferred

	 */

    static CNPDocumentField *NewL( CNPSearchDocument& aOwner, const CDocumentField& aField );

    virtual ~CNPDocumentField();

private:

	CNPDocumentField( CNPSearchDocument& aOwner, const CDocumentField& aField );

    void ConstructL();

public: // from MNPDocumentField

	virtual const TDesC& Name() const;

	virtual const TDesC& Value() const;

private:

	CNPSearchDocument& iOwner;

	// Don't held ownership 

	const CDocumentField& iField;

    };

#endif /*CNPDOCUMENTFIELD_H*/