1 /*

     2 * Copyright (c) 2005-2006 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 the License "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:  CSysInfoObserver class for handling async requests

    15 *

    16 */

    17 

    18 

    19 #ifndef __SYSINFOOBSERVER_H__

    20 #define __SYSINFOOBSERVER_H__

    21 

    22 #include <e32base.h>

    23 #include "sysinfoservice.h"

    24 #include "sysrequest.h"

    25 

    26 //FORWARD DECLARATION

    27 class CLiwGenericParamList;

    28 class CSysInfoInterface;

    29 

    30 /**

    31 * CSysInfoObserver

    32 * This class acts as an observer for all asynchronous requests. After the request

    33 * is completed, it checks for error and packs it in output param list. If there

    34 * is no error, then the iterator is also packed into the output param list.

    35 */

    36 // CLASS DECLARATION

    37 NONSHARABLE_CLASS(CSysInfoObserver): public CBase, public ISystemObserver

    38     {

    39     public: // New methods

    40 

    41     /**

    42     * NewL.

    43     * Two-phased constructor.

    44     * Create a CSysInfoObserver object.

    45     * @param aLmIface The CSysInfoInterface instance.

    46     * @return A pointer to the newly created instance of CSysInfoObserver.

    47     */

    48     static CSysInfoObserver* NewL( CSysInfoInterface* aSysInfoIf );

    49 

    50     /**

    51     * ~CSysInfoObserver

    52     * Destructor.

    53     */

    54     ~CSysInfoObserver() {}

    55 

    56     public:// from ISystemObserver

    57 

    58     /**

    59     * HandleResponseL ()

    60     * Delegates asycn response to client by calling 

    61     * MLiwNotifyCallback::HandleNotifyL().

    62     */		

    63     void HandleResponseL(const TDesC& aEntity,const TDesC& aKey, 

    64                             CSysData* aOutput, TInt32 aTransID, 

    65                             TSysRequest::TRequestType aType, TInt aError);

    66 

    67     private: // Constructors

    68 

    69     /**

    70     * CSysInfoObserver.

    71     * C++ default constructor.

    72     * @param aSysInfoIf The CSysInfoInterface instance.

    73     */

    74     CSysInfoObserver( CSysInfoInterface* aSysInfoIf );

    75 

    76     private: //Data        

    77 

    78     /**

    79     * iSysInfoIf

    80     * Handle to CSysInfoInterface instance.

    81     */

    82     CSysInfoInterface* iSysInfoIf;

    83     };

    84 

    85 #endif // __SYSINFOOBSERVER_H__

    86 

    87 // End of File