1 /*

     2 * Copyright (c) 2005-2007 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:  Transaction

    15 *

    16 */

    17 

    18 

    19 #ifndef C_TRANSACTION_H

    20 #define C_TRANSACTION_H

    21 

    22 #include <e32base.h>

    23 #include <e32cmn.h>

    24 #include <e32hashtab.h>

    25 #include "xnproperty.h"

    26 #include "xnnodeappif.h"

    27 #include "mtransaction.h"

    28 

    29 

    30 namespace AiXmlUiController

    31     {

    32     class MTransactionElement;

    33     class CTransactionElement;

    34     class MTransactionFactory;

    35     }

    36 

    37 

    38 namespace AiXmlUiController

    39 {

    40 

    41 /**

    42 *  @ingroup group_xmluicontroller

    43 * 

    44 *  CTransaction collects the transaction elements of one transaction

    45 *

    46 *  @lib AiXmlUiMain

    47 */

    48 class CTransaction : public CBase, public MTransaction

    49     {

    50 public:  // Constructors and destructor

    51     

    52     static CTransaction* NewL();

    53     

    54     virtual ~CTransaction();

    55 

    56 // From MTransaction

    57     

    58     void Append(MTransactionElement& aElement);

    59     

    60     void CommitL(TBool& aLayoutChanged, RPropertyHashMap& aPropertyHashMap);

    61     

    62     void Reset(MTransactionFactory& aFactory);

    63     

    64     TDblQueIter<CTransactionElement> ElementIter();

    65 

    66     

    67 // New functions

    68     

    69     /**

    70      * Returns the transaction id of this transaction

    71      */

    72     TInt Id() const;

    73     

    74     /**

    75      * Initializes transaction.

    76      * @param aTxId transaction id.

    77      */

    78     void Initialize(TInt aTxId);

    79     

    80     /**

    81      * Returns the doubly linked list link offset.

    82      */

    83     inline static TInt LinkOffset();

    84     

    85     /**

    86      * Returns the singly linked list link offset

    87      */

    88     inline static TInt FactoryLinkOffset();

    89     

    90     /**

    91      * Deques this transaction from a doubly linked list

    92      */

    93     void Deque();

    94     

    95 private:

    96 

    97     CTransaction();

    98 

    99 private:    // Data

   100     

   101     /**

   102      * Transaction identifier.

   103      */

   104     TInt iTxId;

   105     

   106     /**

   107      * Doubly linked list of transaction elements.

   108      */

   109     TDblQue<CTransactionElement> iTransactionElements;

   110    

   111     /**

   112      * Doubly linked list link item.

   113      */

   114     TDblQueLink iLink;

   115     

   116     /**

   117      * Singly linked list link item.

   118      */

   119     TSglQueLink iFactoryLink;

   120         

   121     };

   122         

   123 // Inline implementations

   124 

   125 TInt CTransaction::LinkOffset()

   126     {

   127     return _FOFF(CTransaction, iLink);

   128     }

   129 

   130 TInt CTransaction::FactoryLinkOffset()

   131     {

   132     return _FOFF(CTransaction, iFactoryLink);

   133     }

   134 

   135 } // namespace AiXmlUiController

   136 

   137 #endif      // C_TRANSACTION_H 

   138            

   139 //  End of File