/*

* Copyright (c) 2002 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:  Declares an abstract element in WAP Provisioning.

*

*/

#ifndef CWPELEMENT_H

#define CWPELEMENT_H

// INCLUDES

#include <e32base.h>

// CONSTANTS

enum TWPElementTypes 

    {

    KWPElement,

    KWPParameter,

    KWPPxLogical = 0x51,    // codepage 0

    KWPPxPhysical,

    KWPPort,

    KWPValidity,

    KWPNapDef,

    KWPBootstrap,

    KWPVendorConfig,

    KWPClientIdentity,

    KWPPxAuthInfo,

    KWPNapAuthInfo,

    KWPAccess,

    KWPBearerInfo,

    KWPDNSAddrInfo,

    KWPWLAN,

    KWPWepKey,

	KWPWebKey = 0x5f,

    KWPPort1 =0x53+0x100,   // codepage 1

                                    // 0x54 empty

    KWPApplication = 0x55+0x100,    

    KWPAppAddr,

    KWPAppAuth,

    KWPClientIdentity1,

    KWPResource,

    KWPLoginScript,

    KWPNamedCharacteristic = 0xffff

    };

// DATA TYPES

// FORWARD DECLARATIONS

class RWriteStream;

class RReadStream;

class MWPVisitor;

// CLASS DECLARATION

/**

*  Abstract base class for the contents of a WAP Provisioning document.

*

*  @lib ProvisioningEngine

*  @since 2.0

*/

class MWPElement 

    {

    public: // New functions

        /**

        * Destructor.

        */

        virtual ~MWPElement() {};

        /**

        * Calls the visitor with this as parameter.

        * @param aVisitor Visitor is called.

        */

        virtual void CallVisitorL( MWPVisitor& aVisitor ) = 0;

        /**

        * Returns the type of the element.

        * @return Type

        */

        virtual TInt Type() const = 0;

        /**

        * Externalizes this element.

        * @param aStream Stream to externalize to.

        */

        virtual void ExternalizeL(RWriteStream& aStream) const = 0;

        /**

        * Internalizes this element.

        * @param aStream Stream to internalize from.

        */

        virtual void InternalizeL(RReadStream& aStream) = 0;

    };

#endif /* CWPELEMENT_H */