// Copyright (c) 2001-2009 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:

 //

 /**

  @file THTTPHdrFieldIter.h

  @warning : This file contains Rose Model ID comments - please do not delete

 */

 #ifndef __THTTPHDRFIELDITER_H__

 #define __THTTPHDRFIELDITER_H__

 // System includes

 #include <e32std.h>

 #include <stringpool.h>

 // Forward declarations

 class CHeaders;

 //##ModelId=3A914DFD005C

 class THTTPHdrFieldIter

 /** 

 Iterator class to iterate the fields within a RHTTPHeaders. 

 @publishedAll

 @released

 */

 	{

 public:

 	/** Construct an iterator for the fields of the supplied header collection.

 		@param aHeaders The header collection whose fields we want to iterate

 	*/

 	//##ModelId=3A914DFD0087

 	THTTPHdrFieldIter(const CHeaders* aHeaders);

 	/** Class destructor

 	*/

 	//##ModelId=3A914DFD0086

 	IMPORT_C ~THTTPHdrFieldIter();

 	/** Reset iterator to point at the first field in the header collection

 	*/

 	//##ModelId=3A914DFD0085

 	IMPORT_C void First();

 	/** Check if the iterator is at the end of the collection. If so,

 	    further calls to operator() will return NULL.

 		@return True if the iterator has reached the end of the header

 		fields 

 	*/

 	//##ModelId=3A914DFD0084

 	IMPORT_C TBool AtEnd() const;

 	/** Advance the iterator to the next field.

 		@return True if the iterator still points at a valid part

 		after advancing.

 	*/

 	//##ModelId=3A914DFD007E

 	IMPORT_C void operator++();

 	/** Obtain the name of the header field currently pointed at by

 		the iterator.

 		@return The field name; or <empty string> if the iterator has

 		gone off the end of the header collection 

 	*/

 	//##ModelId=3A914DFD007D

 	IMPORT_C RStringTokenF operator()();

 private:

 	/** Check the iterator state for invalidity following deletions in the collection

 	*/

 	//##ModelId=3BA613240002

 	void CheckInvalidation();

 	/** The headers whose fields we are iterating.

 	*/

 	//##ModelId=3A914DFD007A

 	const CHeaders* iHeaders;

 	/** The index of the field in the header that is currently pointed

 		at by the iterator

 	*/

 	//##ModelId=3A914DFD0072

 	TInt iPosIdx;

 	};

 inline THTTPHdrFieldIter::THTTPHdrFieldIter(const CHeaders* aHeaders)

 	: iHeaders(aHeaders)

 	{

 	First();

 	}

 #endif // __THTTPHDRFIELDITER_H__