// 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:

// DST TZ Database Compiler 

// 

//

#ifndef __TZNODE_H

#define __TZNODE_H

#include <string>

#include <vector>

#include "tzglobals.h"

//============================================================================

// CTZNode class definition

//============================================================================

class CTZNode

	{

public:

	virtual ~CTZNode() {};

	virtual std::vector<CTZNode*>& NodeList() = 0;

	virtual bool CheckNode() const = 0;

	virtual CTZNode* CreateChildElement() = 0;

	virtual void AddAttribute(const char* aValue) = 0;

	//From model

	std::string iValue;					//The actual value of the token

	CTZNode* iParent;					//This nodes parent node	

	};

//============================================================================

// CTZElement class Definition

// An element is a CTZNode which can contain other CTZNodes (CTZAttributes)

// Encapsulates a line of TZ rule specification, such as RULE, LINK, ZONE etc

//============================================================================

class CTZElement : public CTZNode

	{

private:

	~CTZElement();

	void AddAttribute(const char* aValue);

	CTZNode* CreateChildElement();

	std::vector<CTZNode*>& NodeList() { return iNodeList; }

	bool CheckNode() const;

private:

	std::vector<CTZNode*> iNodeList;	//Vector of CTZNode objects

	};

//============================================================================

// CTZAttribute class definition

// An attribute represents a field from a line of the TZ database

//============================================================================

class CTZAttribute : public CTZNode

	{

private:

	CTZNode* CreateChildElement()			{ throw TzGlobals::ETzAbortInvalidCompilerState; }

	void AddAttribute(const char* aValue)	{ throw TzGlobals::ETzAbortInvalidCompilerState;  };

	std::vector<CTZNode*>& NodeList()		{ throw TzGlobals::ETzAbortInvalidCompilerState; }

	bool CheckNode() const;

	};

#endif //__TZNODE_H

//============================================================================

// End of file

//============================================================================