// 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:

//

/**

 @file 

 @internalTechnology

*/

#if (!defined METACONTAINER_H)

#define METACONTAINER_H

#include <e32base.h>

#include <e32std.h>

#include <elements/metadata.h>

namespace Meta

{

class RMetaDataContainerBase : public RPointerArray<SMetaData>

/**

Container of meta objects.

Base class.

Derived containers need to implement static LoadL.

@internalComponent

@released since v9.0 */

    {

public:

	IMPORT_C explicit RMetaDataContainerBase();

    IMPORT_C void Copy(const RMetaDataContainerBase& aMetaContainer);

    IMPORT_C TInt Store(TDes8& aDes) const;

    IMPORT_C TInt Load(TPtrC8& aDes);

	IMPORT_C TInt Length() const;

	IMPORT_C STypeId GetTypeId() const;

protected:

	virtual SMetaData* LoadElementL(TPtrC8& aDes) = 0;

    };

template<class ELEMENT>

class RMetaDataContainer : public RMetaDataContainerBase

/**

Templated container of meta objects that implements static LoadL.

Meta object type (template parameter) needs to implement its own static LoadL.

@internalComponent

@released since v9.0 */

	{

public:

	static RMetaDataContainer<ELEMENT>* LoadL(TPtrC8& aDes);

	explicit inline RMetaDataContainer();

protected:

	virtual SMetaData* LoadElementL(TPtrC8& aDes);

	};

typedef RMetaDataContainer<SMetaDataECom> RMetaDataEComContainer;

} //namespace Meta

#include <elements/metacontainer.inl>

#endif //METACONTAINER_H