1 /*

     2 * Copyright (c) 2006-2008 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Channel property observer.

    15 *

    16 */

    17 

    18 

    19 #ifndef MSENSRVPROPERTYHANDLEROBSERVER_H

    20 #define MSENSRVPROPERTYHANDLEROBSERVER_H

    21 

    22 #include <e32base.h>

    23 #include "sensrvproperty.h"

    24 #include "sensrvtypes.h"

    25 

    26 

    27 /**

    28  * Channel property observer. Callback interface to indicate when a property has been changed.

    29  *  

    30  * @lib SensrvClient.lib

    31  * @since S60 5.0 

    32  */

    33 

    34 class MSensrvPropertyHandlerObserver

    35     {

    36     public:

    37     /**

    38     * Notification about the changed value of a property.

    39     *

    40     * @since S60 5.0

    41     * @param[in] aChangedProperty Changed property.

    42     */  

    43     virtual void PropertyChanged( const TSensrvProperty& aChangedProperty ) = 0;

    44 

    45     /**

    46     * Property listening failed.

    47     * If error was fatal, channel has also been closed and sensor server session terminated.

    48     * If error was minor, some property changes have potentially been missed.

    49     *

    50     * @since S60 5.0

    51     * @param[in] aError Error code. 

    52     */

    53     virtual void PropertyError( TSensrvErrorSeverity aError ) = 0;

    54     

    55     /**

    56     * Reopen channel.

    57     * Data listening and condition listening need restarting

    58     * 

    59     * @since S60 5.0    

    60     * @param aMaxBufferCount New maximum client buffer count

    61     * @return void 

    62     */

    63     virtual void ReopenChannelForPropertyListeningL() = 0;

    64     

    65     /**

    66     * Notification about change in property setting avaibility.

    67     *

    68     * @since S60 5.0

    69     * @param[in] aIndication holds the new indicator value.

    70     */

    71     virtual void SetPropertySuccessIndicationChanged( 

    72                  TSetPropertySuccessIndicator aIndication ) = 0;

    73     

    74     };

    75 

    76 #endif //MSENSRVPROPERTYHANDLEROBSERVER_H