/*

* 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:  Channel condition object implementation

*

*/

#ifndef SENSRVCHANNELCONDITIONIMPL_H

#define SENSRVCHANNELCONDITIONIMPL_H

#include <e32base.h>

#include "sensrvchannelcondition.h"

class CSensrvChannelConditionSetImpl;

/**

* CSensrvChannelConditionImpl is an implementation of CSensrvChannelCondition

* interface. 

*/

NONSHARABLE_CLASS(CSensrvChannelConditionImpl) : public CSensrvChannelCondition

    {

    friend class CSensrvChannelCondition;

    friend class CSensrvChannelConditionSetImpl;

    public:

        virtual ~CSensrvChannelConditionImpl();

    public:  

        /**

        * Return condition type

        *

        * @since S60 5.0

        * @return TSensrvConditionType Type of the condition

        */    

        virtual TInt ConditionType() const;

        /**

        * Return condition operator

        *

        * @since S60 5.0

        * @return TSensrvConditionOperators Condition operator

        */      

        virtual TInt ConditionOperator() const;

        /**

        * Return condition item index

        *

        * @since S60 5.0

        * @return TInt Condition item index

        */      

        virtual TInt ConditionItemIndex() const;

        /**

        * Return condition value

        *

        * @since S60 5.0

        * @param[out] aValue Reference to descriptor where condition limit value

        *              should be copied to. 

        *              Typically this is a package buffer defined for data type of 

        *              this channel.

        * @return TInt KErrOverflow if aData is wrong size for data item.

        */      

        virtual TInt GetConditionValue( TDes8& aValue ) const;       

        /**

        * Get condition value as descriptor.

        *

        * @since S60 5.0

        * @return TDescC8& Reference to condition value descriptor.

        */      

        virtual const TDesC8& ConditionValue() const;   

     private:

        CSensrvChannelConditionImpl

                ( TInt aConditionType, 

                  TInt aConditionOperator,

                  TInt aItemIndex );

        void ConstructL(TDesC8& aValue);

    private:     

        /**

        * Type of this condition.

        */

        TInt iType;

        /**

        * Operator type of this condition.

        */

        TInt iOperator;

        /**

        * Index of the data item this condition is for.

        */

        TInt iIndex;

        /**

        * Data item specifying the limit value.

        * Own.

        */

        HBufC8* iValue;

    };

#endif //SENSRVCHANNELCONDITIONIMPL_H

// End of File