/*

* Copyright (c) 2006 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:   Contains MCatalogsBase implementation base class definition

*

*/

#ifndef C_CATALOGS_BASE_IMPL_H

#define C_CATALOGS_BASE_IMPL_H

#include <e32cmn.h>

#include <e32base.h>

#include "catalogsbase.h"

#include "catalogsdebug.h"

template< class CBaseClass >

class CCatalogsMetaBase : public CBaseClass

    {

    };

template<>

class CCatalogsMetaBase< CActive > : public CActive

    {

public:

    CCatalogsMetaBase() :

      CActive( EPriorityStandard )

        {}

    };

template< class CBaseClass >

class CCatalogsBase : public CCatalogsMetaBase< CBaseClass >, public virtual MCatalogsBase

    {

public:

    CCatalogsBase()

        : iRefCount( 0 )

        {

        }

    TInt AddRef() const

        { 

        DLTRACEIN(("this: %X, base-ptr: %X, refcount: %d", this, 

            static_cast<const MCatalogsBase*>( this ), iRefCount+1));

        return ++iRefCount;

        }

    TInt Release() const

        { 

        DLTRACEIN(("this: %X, base-ptr: %X", this, 

            static_cast<const MCatalogsBase*>( this )));

        TInt result = --iRefCount; 

        DLTRACE(("refCount = %d", result));

        if( result == 0 ) 

            {

            DLTRACE(("deleting this: %X, base-ptr: %X", this, 

                static_cast<const MCatalogsBase*>( this )));

            delete this; 

            }

        return result;

        }

protected:

    mutable TInt iRefCount;

    };

#endif // C_CATALOGS_BASE_IMPL_H