1 /*

     2 * Copyright (c) 2005 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: Declaration of Active object that compacts database.

    15 *

    16 *

    17 */

    18 

    19 

    20 #ifndef CPOSLMACTIVECOMPACTER_H

    21 #define CPOSLMACTIVECOMPACTER_H

    22 

    23 //  INCLUDES

    24 #include <e32base.h>

    25 #include <epos_cposlmlocaldbaccess.h>

    26 

    27 // CONSTANTS

    28 

    29 // FORWARD DECLARATIONS

    30 class CPosLmLocalAccessSubsession;

    31 class CPosLmCompactDatabase;

    32 

    33 // CLASS DECLARATION

    34 

    35 /**

    36 * Active object that compacts database.

    37 */

    38 class CPosLmActiveCompacter : public CActive

    39     {

    40     public:  // Constructors and destructor

    41 

    42         /**

    43         * Two-phased constructor.

    44         *

    45         * @param aOwner The owner of the database lock.

    46         * @param aDb The database to compact.

    47         */

    48         static CPosLmActiveCompacter* NewL(

    49         /* IN */        CPosLmLocalAccessSubsession& aOwner,

    50         /* IN */        CPosLmLocalDbAccess& aDb

    51         );

    52 

    53         /**

    54         * Destructor.

    55         */

    56         virtual ~CPosLmActiveCompacter();

    57 

    58     public: // From base classes

    59 

    60         /**

    61         * From CActive.

    62         *

    63         */

    64         void DoCancel();

    65 

    66         /**

    67         * From CActive.

    68         *

    69         */

    70         void RunL();

    71 

    72         /**

    73         * From CActive.

    74         *

    75         * @param aError The leave code.

    76         * @return Returns KErrNone.

    77         */

    78         TInt RunError(

    79         /* IN */    TInt aError

    80         );

    81 

    82     private:

    83 

    84         /**

    85         * C++ default constructor.

    86         *

    87         * @param aDb The database to compact.

    88         */

    89         CPosLmActiveCompacter(

    90         /* IN */        CPosLmLocalAccessSubsession& aOwner

    91         );

    92 

    93         /**

    94         * By default Symbian 2nd phase constructor is private.

    95         *

    96         * @param aDb The database to compact.

    97         */

    98         void ConstructL(

    99         /* IN */        CPosLmLocalDbAccess& aDb

   100         );

   101 

   102         /**

   103         * Completes this active object after each incremental step.

   104         */

   105         void CompleteSelf();

   106 

   107     private:    // Data

   108 

   109         CPosLmLocalAccessSubsession& iOwner;

   110 

   111         CPosLmCompactDatabase* iCompactDb;

   112 

   113     };

   114 

   115 #endif      // CPOSLMACTIVECOMPACTER_H

   116 

   117 // End of File

   118