/*

* Copyright (c) 2002-2005 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:        Class offers basic implementation of an XML attribute

*

*/

#ifndef SEN_BASE_ATTRIBUTE_H

#define SEN_BASE_ATTRIBUTE_H

//  INCLUDES

#include <e32base.h>

#include <s32strm.h>

// CLASS DECLARATION

/**

*  Class offers basic implementation of an XML attribute

*  XML attribute is a name-value pair type value object,

*  which may or may not have a namespace prefix. Note 

*  that both name and value may contain a namespace prefix.

*  @lib SenXML.dll

*  @since Series60 3.0

*/

class CSenBaseAttribute : public CBase

    {

    public:  // Constructors and destructor

        /**

         *  Basic two-phased constructor.

         *  @since Series60 3.0

         *  @param aName:   Name of the attribute

         *  @param aValue:  Attribute's value.

         *  Leave codes:    

         *      KErrSenInvalidCharacters if aName contains illegal characters.      

         *      KErrSenZeroLengthDescriptor if aLocalName or aQName is zero length.

         */

        IMPORT_C static CSenBaseAttribute* NewL(const TDesC8& aName,

                                                const TDesC8& aValue);

        /**

         *  Basic constructor.

         *  @since Series60 3.0

         *  @param aQName:  Qualified name of the attribute

         *  @param aName:   Name of the attribute

         *  @param aValue:  Attribute's value.

         *  Leave codes:    

         *      KErrSenInvalidCharacters if aName or aQName contain 

         *      illegal characters.     

         *      KErrSenZeroLengthDescriptor if aLocalName or aQName is zero length.

         */

        IMPORT_C static CSenBaseAttribute* NewL(const TDesC8& aQName,

                                                const TDesC8& aName,

                                                const TDesC8& aValue);

        /**

        * Destructor.

        */

        IMPORT_C virtual ~CSenBaseAttribute();

        // New functions

        /**

         * Getter for the attribute name.

         * @since Series60 3.0

         * @return the attribute name.

         */

        virtual const TDesC8& Name() const;

        /**

         * Getter for the attribute value.

         * @since Series60 3.0

         * @return the attribute value.

         */

        virtual const TDesC8& Value() const;

        /**

         * Setter for the attribute value.

         * @since Series60 3.0

         * @param aValue:   value to be set

         * @return the new value.

         */

        virtual const TDesC8& SetValueL(const TDesC8& aValue);

    protected:  

        /**

        * C++ default constructor

        * @since Series60 3.0

        */

        IMPORT_C CSenBaseAttribute();

        /**

         * Following BaseConstructL methods should be called from the deriving

         * classes ConstructL() methods. Parameter info is found in the

         * corresponding NewL-methods.

         * @since Series60 3.0

         * @param aName is the name of this attribute. Cannot contain characters

         *        that are illegal in XML (like basic entities in decoded form)

         * @param aValue is the value of this attribute. Cannot contain characters

         *        that are illegal in XML (like basic entities in decoded form)

         */

        IMPORT_C void BaseConstructL(const TDesC8& aName,

                                    const TDesC8& aValue);

        /**

        * @since Series60 3.0

        * @param aName is the name of this attribute. Cannot contain characters

        *        that are illegal in XML (like basic entities in decoded form)

        * @param aQName is the qualified, prefixed name of this XML attribute.

        *        Cannot contain characters which are illegal in XML.

        * @param aValue is the value of this attribute. Cannot contain characters

        *        that are illegal in XML (like basic entities in decoded form)

        */

        IMPORT_C void BaseConstructL(const TDesC8& aName,

                                     const TDesC8& aQName,

                                     const TDesC8& aValue);

    private:    // Data

        HBufC8* ipName;

        HBufC8* ipValue;

    };

#endif // SEN_BASE_ATTRIBUTE_H

// End of File