/*

* Copyright (c) 2005 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:  ConML parser/generator

*

*/

#ifndef __SCONXMLWORKSPACE_H__

#define __SCONXMLWORKSPACE_H__

// -----------------------------------------------------------------------------

// Includes

// -----------------------------------------------------------------------------

#include <e32base.h>

// -----------------------------------------------------------------------------

// CXMLWorkspace - workspace for WBXML / XML -documents

// -----------------------------------------------------------------------------

class CXMLWorkspace : public CBase

	{

public:

	~CXMLWorkspace();

	static CXMLWorkspace* NewL();

	// transaction handling

	/**

        * Function to Begin transaction

        * @param none

        * @return none

        */

	void BeginTransaction();

	/**

        * Commits the transactions done

        * @param none

        * @return none

        */

	void CommitAll();

	/**

        *  Commits the latest transacion done

        * @param none

        * @return KErrNone or an error code

        */

	TInt Commit();

	/**

        *  Deletes the latest transacion done

        * @param none

        * @return KErrNone or an error code

        */

	TInt Rollback();

        /**

        *  Resets the buffer

        * @param none

        * @return KErrNone or an error code

        */

	void Reset();

	/**

        *  Writes to the buffer

        * @param none

        * @return none

        */

	void WriteL( const TDesC8& aData );

	void WriteL( const TUint8 aData );

	/**

        * Returns the buffer

        * @param none

        * @return the buffer

        */

	TPtrC8 Buffer();

        /**

        *  Returns the free space left in the buffer

        * @param none

        * @return free space of the buffer

        */

	TInt FreeSize();

	/**

        *  Returns the maximum size of the buffer

        * @param none

        * @return Buffer maximum size

        */

	TInt MaxSize();

	/**

        *  Returns the size of the buffer space used

        * @param none

        * @return Size of the buffer used

        */

	TInt Size();

protected:

	void ConstructL();

private:

	void Delete( TInt aPos, TInt aLength );

	CXMLWorkspace();

private:

	CBufFlat* iBuffer;

	RArray<TUint>* iTransactions;

	};

#endif // __SCONXMLWORKSPACE_H__