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1 /* |
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2 * Copyright (c) 2005-2007 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Transaction |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifndef C_TRANSACTION_H |
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20 #define C_TRANSACTION_H |
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21 |
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22 #include <e32base.h> |
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23 #include <e32cmn.h> |
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24 #include <e32hashtab.h> |
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25 #include "xnproperty.h" |
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26 #include "xnnodeappif.h" |
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27 #include "mtransaction.h" |
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28 |
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29 |
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30 namespace AiXmlUiController |
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31 { |
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32 class MTransactionElement; |
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33 class CTransactionElement; |
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34 class MTransactionFactory; |
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35 } |
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36 |
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37 |
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38 namespace AiXmlUiController |
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39 { |
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40 |
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41 /** |
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42 * @ingroup group_xmluicontroller |
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43 * |
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44 * CTransaction collects the transaction elements of one transaction |
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45 * |
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46 * @lib AiXmlUiMain |
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47 */ |
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48 class CTransaction : public CBase, public MTransaction |
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49 { |
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50 public: // Constructors and destructor |
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51 |
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52 static CTransaction* NewL(); |
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53 |
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54 virtual ~CTransaction(); |
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55 |
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56 // From MTransaction |
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57 |
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58 void Append(MTransactionElement& aElement); |
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59 |
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60 void CommitL(TBool& aLayoutChanged, RPropertyHashMap& aPropertyHashMap); |
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61 |
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62 void Reset(MTransactionFactory& aFactory); |
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63 |
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64 TDblQueIter<CTransactionElement> ElementIter(); |
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65 |
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66 |
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67 // New functions |
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68 |
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69 /** |
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70 * Returns the transaction id of this transaction |
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71 */ |
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72 TInt Id() const; |
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73 |
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74 /** |
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75 * Initializes transaction. |
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76 * @param aTxId transaction id. |
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77 */ |
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78 void Initialize(TInt aTxId); |
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79 |
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80 /** |
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81 * Returns the doubly linked list link offset. |
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82 */ |
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83 inline static TInt LinkOffset(); |
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84 |
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85 /** |
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86 * Returns the singly linked list link offset |
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87 */ |
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88 inline static TInt FactoryLinkOffset(); |
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89 |
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90 /** |
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91 * Deques this transaction from a doubly linked list |
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92 */ |
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93 void Deque(); |
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94 |
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95 private: |
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96 |
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97 CTransaction(); |
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98 |
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99 private: // Data |
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100 |
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101 /** |
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102 * Transaction identifier. |
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103 */ |
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104 TInt iTxId; |
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105 |
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106 /** |
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107 * Doubly linked list of transaction elements. |
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108 */ |
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109 TDblQue<CTransactionElement> iTransactionElements; |
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110 |
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111 /** |
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112 * Doubly linked list link item. |
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113 */ |
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114 TDblQueLink iLink; |
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115 |
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116 /** |
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117 * Singly linked list link item. |
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118 */ |
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119 TSglQueLink iFactoryLink; |
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120 |
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121 }; |
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122 |
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123 // Inline implementations |
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124 |
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125 TInt CTransaction::LinkOffset() |
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126 { |
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127 return _FOFF(CTransaction, iLink); |
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128 } |
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129 |
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130 TInt CTransaction::FactoryLinkOffset() |
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131 { |
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132 return _FOFF(CTransaction, iFactoryLink); |
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133 } |
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134 |
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135 } // namespace AiXmlUiController |
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136 |
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137 #endif // C_TRANSACTION_H |
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138 |
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139 // End of File |