/*

* Copyright (c) 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:  ?Description

*

*/

#ifndef __MDERELATIONDEF_H__

#define __MDERELATIONDEF_H__

#include <e32base.h>

#include <mdccommon.h>

// Forward declaration

class CMdCSerializationBuffer;

class CMdENamespaceDef;

class TMdCRelationDef;

/**

 * Relation definition.

 */

NONSHARABLE_CLASS(CMdERelationDef) : public CBase

	{

public:	

	static CMdERelationDef* NewL(const TMdCRelationDef& aRelationDef, CMdCSerializationBuffer& aSchemaBuffer,

			CMdENamespaceDef& aNamespaceDef);

	static CMdERelationDef* NewLC(const TMdCRelationDef& aRelationDef, CMdCSerializationBuffer& aSchemaBuffer,

			CMdENamespaceDef& aNamespaceDef);

	/**

	 * Returns the name of the item.

	 *

	 * @return  name

	 */

	IMPORT_C const TDesC& Name() const;

	/**

	 * Compare this relation definition with other relation definition.

	 *

	 * @param aRelationDef other relation definition

	 *

	 * @return  0 if relations are same, 1 or more if this is greater than other 

	 *          and -1 or less if this is less than other.

	 */

	IMPORT_C TInt Compare(const CMdERelationDef& aRelationDef) const;

	/**

	 * Returns namespace definition of namespace which contains this relation

	 * @return namespace definition of relation

	 */

	IMPORT_C CMdENamespaceDef& NamespaceDef() const;

public:		

	/**

	 * Destructor.

	 */

	virtual ~CMdERelationDef();

	TDefId Id() const;

private:

	CMdERelationDef(const TMdCRelationDef& aRelationDef, CMdENamespaceDef& aNamespaceDef);

	void ConstructL(CMdCSerializationBuffer& aSchemaBuffer);

private:

	const TMdCRelationDef& iRelationDef;

	CMdENamespaceDef& iNamespaceDef;

	TPtrC16 iName;

	};

#endif  // __MDERELATIONDEF_H__