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1 /** |
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2 * Copyright (c) 2004-2009 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: |
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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 |
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20 /** |
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21 @file MetaDatabaseVisitor.h |
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22 @internalComponent |
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23 */ |
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24 |
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25 #if (!defined METADATABASEVISITOR_H) |
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26 #define METADATABASEVISITOR_H |
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27 |
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28 |
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29 namespace CommsDat |
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30 /* |
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31 Namespace encapsulates all types that are able to perform MMetaDatabase actions on specific record data types |
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32 */ |
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33 { |
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34 |
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35 using namespace CommsDatInternal; |
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36 using namespace Meta; |
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37 |
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38 |
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39 |
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40 NONSHARABLE_CLASS(TMDBVisitorBase) : public Meta::MMetaType |
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41 /** |
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42 A general database visitor |
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43 @internalComponent |
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44 */ |
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45 { |
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46 public: |
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47 |
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48 virtual ~TMDBVisitorBase(); |
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49 |
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50 ////////// From Meta::MMetaType ///////////////////////////////////////// |
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51 TInt Load(TPtrC8& aBuffer){ aBuffer == aBuffer; return 0; } |
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52 TInt Store(TDes8& aBuffer) const{aBuffer == aBuffer; return 0; } |
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53 void Copy(const TAny* aData) {aData = aData;} |
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54 TInt Length() const {return 0;} |
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55 /////////////////////////////////////////////////////////////////// |
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56 |
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57 // GET |
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58 virtual TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags) = 0; |
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59 virtual TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags, RArray<TUint32>& aIds) = 0; |
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60 virtual TInt FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds) = 0; |
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61 virtual TInt RefreshL(CMDBSessionImpl* aSession) = 0; |
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62 virtual TInt GetL(CMDBSessionImpl* aSession); |
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63 |
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64 // SET |
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65 virtual TInt StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags) = 0; |
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66 virtual TInt ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags) = 0; |
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67 |
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68 virtual void SetOwner(CMDBElement* aOwner); |
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69 virtual TInt Changed() const = 0; |
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70 virtual void Sync(); |
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71 virtual void ClearValue(){} |
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72 |
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73 public: |
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74 |
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75 // These do not need to be specialised in inheriting templates |
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76 void Change(); |
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77 void FieldLoaded(); |
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78 TBool IsFieldLoaded(); |
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79 void SetFieldNull(); |
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80 |
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81 TUint32 TypeId(); |
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82 TUint32 ElementId(); |
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83 void SetElementId(TMDBElementId* aId); |
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84 void SetElementId(TMDBElementId aId); |
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85 |
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86 void SetMaxLength(TInt aLength); |
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87 |
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88 /* Removes all of the flags from the elementId of the DBVisitor - use only if the given record |
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89 * which needs to be loaded is NOT a template record!! Doesn't have to be virtual. |
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90 */ |
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91 void ResetElementId(TInt aRecId); |
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92 |
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93 protected: |
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94 |
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95 TMDBVisitorBase(TMDBElementId *aElementId); |
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96 TMDBVisitorBase(); |
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97 |
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98 void FindRecordsUsingTemplateL(CMDBSessionImpl* aSession, RArray<TUint32>& aRecordIds, RArray<TUint32>& aCandidateIds); |
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99 |
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100 TInt iMaxLength; |
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101 CMDBElement* iOwner; |
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102 |
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103 TMDBElementId* iElementId; |
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104 }; |
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105 |
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106 |
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107 |
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108 |
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109 //////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
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110 // TMDBVisitor |
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111 // |
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112 /** |
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113 Generic visitor for any simple MetaDatabase element. |
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114 Class is specialised to act on fields of type TMDBMetaField<T> |
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115 where T is |
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116 TInt - (for any number - reals not used in comms database) |
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117 HBufC - for any string |
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118 HBufC8 - for binary data |
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119 */ |
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120 |
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121 |
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122 /*Simple encapsulation of a metadatabase element for use by visitors |
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123 @internalComponent |
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124 */ |
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125 template<class TYPE> |
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126 struct SMDBMetaElement |
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127 { |
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128 TMDBElementId iElementId; |
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129 TYPE iValue; |
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130 }; |
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131 |
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132 /* |
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133 Implementation of MMetaDBVisitor for a general type |
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134 @internalComponent |
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135 */ |
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136 |
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137 |
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138 template <class TYPE> |
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139 class TMDBVisitor : public TMDBVisitorBase |
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140 /** |
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141 Implementation of MMetaDBVisitor for a general element type |
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142 @internalComponent |
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143 */ |
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144 { |
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145 public: |
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146 |
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147 inline static TMDBVisitor<TYPE>* NewL(const TAny* aMem, const TAny* aData); |
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148 inline static TMDBVisitor<TYPE>* CreateL(const TAny* aMem, const TAny* aData); |
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149 |
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150 // GET |
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151 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
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152 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags, RArray<TUint32>& aIds); |
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153 TInt FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds); |
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154 TInt RefreshL(CMDBSessionImpl* aSession); |
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155 TInt GetL(CMDBSessionImpl* aSession); |
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156 |
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157 // SET |
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158 TInt StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
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159 TInt ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags); |
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160 |
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161 TInt Changed() const; |
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162 //void SetOwner(CMDBElement* aOwner); |
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163 void ClearValue(); |
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164 |
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165 public: |
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166 |
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167 SMDBMetaElement<TYPE>* iTarget; |
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168 |
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169 protected: |
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170 |
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171 TMDBVisitor(SMDBMetaElement<TYPE>* aData); |
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172 }; |
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173 |
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174 |
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175 |
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176 template <class TYPE> |
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177 inline TMDBVisitor<TYPE>::TMDBVisitor(SMDBMetaElement<TYPE>* aData) |
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178 : TMDBVisitorBase(&(aData->iElementId)), iTarget(aData) |
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179 /** |
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180 * Constructor |
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181 */ |
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182 { |
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183 } |
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184 |
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185 |
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186 |
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187 template<class TYPE> |
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188 inline TMDBVisitor<TYPE>* TMDBVisitor<TYPE>::NewL(const TAny* aMem, const TAny* aData) |
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189 /** |
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190 * Instantiates a Visitor of a particular type. |
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191 * Used for attribute registration (in the data v-table). |
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192 */ |
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193 { |
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194 return static_cast<TMDBVisitor<TYPE>*>( ::new ((TUint8*)aMem) TMDBVisitor( (SMDBMetaElement<TYPE>*)(aData) ) ); |
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195 } |
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196 |
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197 template<class TYPE> |
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198 inline TMDBVisitor<TYPE>* TMDBVisitor<TYPE>::CreateL(const TAny* aMem, const TAny* aData) |
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199 /** |
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200 * Instantiates a Visitor of a particular type. |
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201 * Used for attribute registration (in the data v-table). |
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202 */ |
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203 { |
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204 return static_cast<TMDBVisitor<TYPE>*>( ::new ((TUint8*)aMem) TMDBVisitor( (SMDBMetaElement<TYPE>*)(((CMDBElement*)aData)->Data()) ) ); |
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205 } |
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206 |
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207 |
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208 template <class TYPE> |
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209 inline TInt TMDBVisitor<TYPE>::Changed() const |
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210 /* |
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211 Has the value been changed by the caller? |
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212 |
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213 @internalComponent |
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214 */ { |
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215 if (iElementId) |
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216 { |
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217 return ( *iElementId & KCDChangedFlag ); |
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218 } |
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219 return 0; |
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220 } |
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221 |
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222 |
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223 template<class TYPE> |
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224 inline void TMDBVisitor<TYPE>::ClearValue() |
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225 { |
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226 if (iTarget) |
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227 { |
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228 iTarget->iValue = 0; |
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229 SetFieldNull(); |
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230 } |
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231 } |
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232 |
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233 |
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234 template<> |
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235 inline void TMDBVisitor<HBufC16*>::ClearValue() |
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236 { |
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237 if (iTarget) |
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238 { |
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239 delete iTarget->iValue; |
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240 iTarget->iValue = 0; |
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241 SetFieldNull(); |
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242 } |
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243 } |
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244 |
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245 |
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246 template<> |
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247 inline void TMDBVisitor<HBufC8*>::ClearValue() |
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248 { |
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249 if (iTarget) |
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250 { |
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251 delete iTarget->iValue; |
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252 iTarget->iValue = 0; |
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253 SetFieldNull(); |
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254 } |
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255 } |
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256 |
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257 |
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258 template<class TYPE> |
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259 inline TInt TMDBVisitor<TYPE>::RefreshL(CMDBSessionImpl* aSession) |
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260 { |
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261 return LoadL(aSession,*iElementId,*iElementId); |
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262 } |
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263 |
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264 |
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265 template<class TYPE> |
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266 inline TInt TMDBVisitor<TYPE>::GetL(CMDBSessionImpl* aSession) |
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267 /* |
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268 Assumes fully resolved element Id but still needs mask for reserved bits |
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269 |
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270 @internalComponent |
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271 */ |
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272 { |
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273 if (! iTarget ) |
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274 { |
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275 User::Leave(KErrNotReady); |
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276 } |
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277 |
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278 TUint32 id = ElementId() & ~KCDMaskShowRes; |
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279 |
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280 TInt err = aSession->StorageL()->Get(id, iTarget->iValue); |
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281 |
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282 if(err == KErrNone) |
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283 { |
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284 FieldLoaded(); // value has been retrieved |
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285 } |
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286 else |
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287 { |
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288 Sync(); // indicates the field is still null. |
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289 |
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290 if (err != KErrNotFound && err != KErrPermissionDenied) |
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291 { |
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292 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> GetL() storage server Get returned err = %d for id %08x"), err, id); |
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293 User::Leave(err); |
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294 } |
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295 } |
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296 return err; |
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297 } |
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298 |
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299 |
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300 |
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301 template<> |
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302 inline TInt TMDBVisitor<HBufC16*>::GetL(CMDBSessionImpl* aSession) |
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303 /* |
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304 Specialisation for HBufC16 |
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305 Assumes fully resolved element Id but still needs mask for reserved bits |
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306 |
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307 @internalComponent |
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308 */ |
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309 { |
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310 if (! iTarget ) |
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311 { |
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312 User::Leave(KErrNotReady); |
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313 } |
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314 |
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315 if( ! iTarget->iValue || |
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316 iTarget->iValue->Length() < iMaxLength) |
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317 { |
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318 delete iTarget->iValue; |
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319 iTarget->iValue = NULL; |
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320 iTarget->iValue = HBufC16::NewMaxL(iMaxLength); |
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321 } |
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322 |
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323 TPtr16 ptr = iTarget->iValue->Des(); |
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324 TUint32 id = ElementId() & KCDMaskHideRes; |
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325 |
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326 TInt err = aSession->StorageL()->Get(id, ptr); |
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327 |
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328 if(err == KErrNone) |
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329 { |
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330 FieldLoaded(); // value has been loaded |
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331 |
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332 HBufC16* temp = iTarget->iValue; |
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333 iTarget->iValue = HBufC16::NewMaxL(ptr.Length()); |
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334 TPtr16 ptrNew = iTarget->iValue->Des();; |
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335 ptrNew = ptr; |
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336 delete temp; |
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337 } |
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338 else |
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339 { |
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340 delete iTarget->iValue; |
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341 iTarget->iValue = NULL; |
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342 |
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343 Sync(); // indicates the field is null. |
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344 |
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345 if (err != KErrNotFound && err != KErrPermissionDenied) |
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346 { |
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347 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC16*> GetL() storage server Get returned err = %d for id %08x"), err, id); |
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348 User::Leave(err); |
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349 } |
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350 } |
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351 |
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352 return err; |
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353 } |
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354 |
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355 |
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356 |
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357 template<> |
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358 inline TInt TMDBVisitor<HBufC8*>::GetL(CMDBSessionImpl* aSession) |
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359 /* |
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360 Specialisation for HBufC8* |
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361 Assumes fully resolved element Id but still needs mask for reserved bits |
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362 |
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363 @internalTechnology |
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364 */ |
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365 { |
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366 if (! iTarget ) |
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367 { |
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368 User::Leave(KErrNotReady); |
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369 } |
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370 |
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371 if (! iTarget->iValue || |
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372 iTarget->iValue->Length() < iMaxLength) |
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373 { |
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374 delete iTarget->iValue; |
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375 iTarget->iValue = NULL; |
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376 iTarget->iValue = HBufC8::NewMaxL(iMaxLength); |
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377 } |
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378 |
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379 TPtr8 ptr = iTarget->iValue->Des(); |
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380 TUint32 id = ElementId() & KCDMaskHideRes; |
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381 |
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382 TInt err = aSession->StorageL()->Get(id, ptr); |
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383 |
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384 if(err == KErrNone) |
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385 { |
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386 FieldLoaded();// Value was retrieved |
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387 |
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388 /* |
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389 HBufC8* temp = iTarget->iValue; |
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390 iTarget->iValue = HBufC8::NewMaxL(ptr.Length()); |
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391 TPtr8 ptrNew = iTarget->iValue->Des();; |
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392 ptrNew = ptr; |
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393 delete temp; |
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394 */ |
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395 } |
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396 else |
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397 { |
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398 delete iTarget->iValue; |
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399 iTarget->iValue = NULL; |
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400 |
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401 Sync(); // indicates the field is null. |
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402 |
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403 if (err != KErrNotFound && err != KErrPermissionDenied) |
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404 { |
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405 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC8*> GetL() storage server Get returned err = %d for id %08x"), err, id); |
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406 User::Leave(err); |
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407 } |
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408 } |
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409 |
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410 return err; |
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411 } |
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412 |
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413 |
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414 |
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415 template<class TYPE> |
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416 inline TInt TMDBVisitor<TYPE>::LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags /*aAttributeFlags*/) |
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417 /* |
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418 Assumes type and record id set by caller |
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419 |
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420 @internalComponent |
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421 */ |
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422 { |
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423 if (! iTarget) |
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424 { |
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425 User::Leave(KErrNotReady); |
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426 } |
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427 |
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428 // set the element id to the full id set by the caller |
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429 iTarget->iElementId = (iTarget->iElementId & (KCDMaskShowType | KCDMaskShowRes)) | (aRecordId & KCDMaskShowRecordId); |
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430 |
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431 RArray<TUint32> ids; |
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432 CleanupClosePushL(ids); |
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433 |
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434 TUint32 mask = KCDMaskShowType | KCDMaskShowRecordId | aSession->GetReadAttributeMask(); |
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435 |
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436 TUint32 id = ElementId() & KCDMaskHideAttrAndRes; |
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437 |
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438 TInt err = (aSession->StorageL())->FindL(id, mask, ids); |
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439 |
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440 if ( err != KErrNone && err != KErrNotFound ) |
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441 { |
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442 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> LoadL() storage server FindL returned err = %d when looking for %08x, masked with %08x"), err, id, mask); |
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443 } |
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444 #ifdef __DEBUG |
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445 else if ( ids.Count() > 1 ) |
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446 { |
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447 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> LoadL() storage server FindL/FindEqL %d fields found for %08x. Should be 1 or 0."), aIds.Count(), id & mask); |
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448 } |
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449 #endif |
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450 |
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451 // Load the field data |
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452 if (err == KErrNone) |
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453 { |
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454 // Set the full id |
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455 iTarget->iElementId = ids[0]; |
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456 err = GetL(aSession); |
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457 } |
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458 |
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459 CleanupStack::PopAndDestroy(&ids); |
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460 if ( err == KErrNotFound ) |
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461 { |
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462 // it's ok not to find a field. |
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463 // Don't report that error back. |
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464 // VCT - experimenting without this err = KErrNone; |
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465 } |
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466 |
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467 return err; |
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468 } |
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469 |
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470 |
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471 |
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472 template<class TYPE> |
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473 inline TInt TMDBVisitor<TYPE>::LoadL(CMDBSessionImpl* aSession, TMDBElementId /*aRecordId*/, TMDBAttributeFlags /*aAttributeFlags*/,RArray<TUint32>& aIds ) |
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474 /* |
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475 Assumes type and record id set by caller |
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476 |
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477 @internalComponent |
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478 */ |
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479 { |
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480 if (aIds.Count() == 0) |
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481 { |
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482 User::Leave(KErrNotFound); |
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483 } |
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484 |
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485 return LoadL(aSession, aIds[0] & KCDMaskShowRecordId, aIds[0] & KCDMaskShowAttributes); |
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486 } |
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487 |
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488 |
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489 |
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490 template <class TYPE> |
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491 inline TInt TMDBVisitor<TYPE>::FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds) |
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492 /* |
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493 Only find dont actually load |
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494 Assumes fully resolved element Id but still needs mask for reserved bits |
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495 |
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496 @internalComponent |
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497 */ |
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498 { |
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499 if (! iTarget ) |
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500 { |
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501 User::Leave(KErrNotReady); |
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502 } |
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503 |
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504 TInt err(KErrNotFound); |
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505 |
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506 // want to find this field in any record of this type that has appropriate attributes |
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507 // so mask out recordid, reserved bits and any attributes that need not be observed. |
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508 // TUint32 mask = KCDMaskShowType | (~aAttributeFlags & KCDMaskShowAttributes); |
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509 TUint32 mask = KCDMaskShowType | aSession->GetReadAttributeMask(); |
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510 |
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511 if (Changed()) |
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512 { |
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513 err = aSession->StorageL()->FindEqL(ElementId() & ~aSession->GetReadAttributeMask(), mask, iTarget->iValue, aIds); |
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514 |
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515 RArray<TUint32> ids; |
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516 CleanupClosePushL(ids); |
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517 |
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518 mask = (mask & ~ECDHidden) | KCDMaskShowRecordId; |
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519 |
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520 // Now look in template record to find other records |
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521 err = aSession->StorageL()->FindEqL(ElementId() & ~KCDMaskShowRecordId, mask, iTarget->iValue, ids); |
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522 |
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523 if ( err == KErrNone ) |
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524 { |
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525 FindRecordsUsingTemplateL(aSession, ids, aIds); |
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526 } |
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527 |
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528 if ( aIds.Count() ) |
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529 { |
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530 err = KErrNone; |
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531 } |
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532 |
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533 CleanupStack::PopAndDestroy(&ids); |
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534 } |
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535 else |
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536 { |
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537 err = aSession->StorageL()->FindL(ElementId() & ~aSession->GetReadAttributeMask(), mask, aIds); |
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538 } |
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539 |
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540 if ( aIds.Count() == 0) |
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541 { |
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542 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> FindL() storage server FindL returned err = %d when looking for %08x, masked with %08x"), err, ElementId(), mask); |
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543 if (err == KErrNone || err == KErrNotFound) |
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544 { |
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545 __FLOG_STATIC2(KLogComponent, KCDInfoLog, _L("TMDBVisitor<TYPE> FindL() storage server FindL() did not find <%08x> masked with <%08x>"), ElementId(), mask); |
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546 err = KErrNotFound; |
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547 } |
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548 else |
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549 { |
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550 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> FindL() storage server FindL returned err = %d when looking for <%08x>, masked with <%08x>"), err, ElementId(), mask); |
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551 } |
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552 } |
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553 #ifdef __DEBUG |
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554 else if ( aIds->Count() > 1) |
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555 { |
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556 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> FindL() storage server FindL/FindEqL %d fields found for id %08x. Should be 1 or 0."), aIds.Count(), id & mask); |
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557 } |
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558 #endif |
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559 |
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560 return err; |
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561 } |
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562 |
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563 |
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564 |
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565 template <> |
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566 inline TInt TMDBVisitor<HBufC16*>::FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds) |
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567 /* |
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568 Only find dont actually load |
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569 Assumes fully resolved element Id but still needs mask for reserved bits |
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570 |
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571 @internalComponent |
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572 */ |
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573 { |
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574 if (! iTarget || ! iTarget->iValue ) |
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575 { |
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576 User::Leave(KErrNotReady); |
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577 } |
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578 |
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579 // want to find this field in any record of this type that has appropriate attributes |
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580 // so mask out recordid, reserved bits and any attributes that need not be observed. |
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581 // TUint32 mask = KCDMaskShowType | (~aAttributeFlags & KCDMaskShowAttributes); |
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582 TUint32 mask = KCDMaskShowType | aSession->GetReadAttributeMask(); |
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583 |
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584 TInt err(KErrNotFound); |
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585 |
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586 if (Changed()) |
|
587 { |
|
588 const TDesC16& val = *iTarget->iValue; |
|
589 // An absent text field is treated as being synonymous with one that is present but blank, ie |
|
590 // searching for an empty descriptor matches both actual blanks and fields that aren't found. Because |
|
591 // CenRep doesn't support such a thing we're forced to get handle this case by brute force: get the set |
|
592 // of all record ids, fetch the desired field for each, and remove those records where the field is present |
|
593 // and non blank. |
|
594 if(val.Length() == 0) |
|
595 { |
|
596 // Get the set of all recordIds |
|
597 TUint32 maskId = KCDMaskHideAttrAndRes & ~KCDColumnTypeInfo; |
|
598 |
|
599 TUint32 tableId = ElementId() | KCDMaskShowColumnTypeAndRecordId; |
|
600 |
|
601 err = (aSession->StorageL())->FindL(tableId, maskId, aIds); |
|
602 |
|
603 // remove node (side effect from query) |
|
604 for (TInt idx = aIds.Count() - 1; idx >= 0; -- idx) |
|
605 { |
|
606 if( (aIds[idx] & ~KCDMaskShowAttrAndRes) == (tableId & ~KCDMaskShowAttrAndRes) ) |
|
607 { |
|
608 aIds.Remove(idx); |
|
609 } |
|
610 } |
|
611 |
|
612 if ( err != KErrNone && err != KErrNotFound ) |
|
613 { |
|
614 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC16*> FindL() storage server FindL returned err = %d when looking for <%08x>, masked with <%08x>"), err, tableId, mask); |
|
615 } |
|
616 else |
|
617 { |
|
618 // Fetch the desired field for each record |
|
619 RArray<TUint32> fieldIds; |
|
620 CleanupClosePushL(fieldIds); |
|
621 |
|
622 TUint32 fieldId = (ElementId() & ~KCDMaskShowRecordId); |
|
623 maskId = KCDMaskShowType | aSession->GetReadAttributeMask(); |
|
624 |
|
625 TInt errFieldSearch = aSession->StorageL()->FindL(fieldId, maskId, fieldIds); |
|
626 if(errFieldSearch == KErrNone) |
|
627 { |
|
628 for(TInt fieldIdx = fieldIds.Count() - 1; fieldIdx >= 0; --fieldIdx) |
|
629 { |
|
630 for (TInt idx = aIds.Count() - 1; idx >= 0; -- idx) |
|
631 { |
|
632 // Remove those records where the field is present and non blank |
|
633 if( (fieldIds[fieldIdx] & KCDMaskShowRecordId) == (aIds[idx] & KCDMaskShowRecordId )) |
|
634 { |
|
635 aIds.Remove(idx); |
|
636 } |
|
637 } |
|
638 } |
|
639 } |
|
640 |
|
641 CleanupStack::PopAndDestroy(&fieldIds); |
|
642 } |
|
643 } |
|
644 else |
|
645 { |
|
646 if((ElementId() & KCDMaskHideRes) == KCDMaskGenericTableName) |
|
647 { |
|
648 mask = KCDMaskGenericTableName; |
|
649 } |
|
650 |
|
651 err = aSession->StorageL()->FindEqL(ElementId() & ~aSession->GetReadAttributeMask(), mask, val, aIds); |
|
652 |
|
653 RArray<TUint32> ids; |
|
654 CleanupClosePushL(ids); |
|
655 |
|
656 mask = (mask & ~ECDHidden) | KCDMaskShowRecordId; |
|
657 |
|
658 // Now look in template record |
|
659 err = aSession->StorageL()->FindEqL(ElementId() & ~KCDMaskShowRecordId, mask, val, ids); |
|
660 |
|
661 if ( err == KErrNone ) |
|
662 { |
|
663 FindRecordsUsingTemplateL(aSession, ids, aIds); |
|
664 } |
|
665 |
|
666 if ( aIds.Count() ) |
|
667 { |
|
668 err = KErrNone; |
|
669 } |
|
670 |
|
671 CleanupStack::PopAndDestroy(&ids); |
|
672 } |
|
673 } |
|
674 else |
|
675 { |
|
676 err = aSession->StorageL()->FindL(ElementId() & ~aSession->GetReadAttributeMask(), mask, aIds); |
|
677 } |
|
678 |
|
679 if ( aIds.Count() == 0) |
|
680 { |
|
681 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC16*> FindL() storage server FindL returned err = %d when looking for %08x, masked with %08x"), err, ElementId(), mask); |
|
682 if (err == KErrNone || err == KErrNotFound) |
|
683 { |
|
684 __FLOG_STATIC2(KLogComponent, KCDInfoLog, _L("TMDBVisitor<HBufC16*> FindL() storage server FindL() did not find <%08x> masked with %08x"), ElementId(), mask); |
|
685 err = KErrNotFound; |
|
686 } |
|
687 else |
|
688 { |
|
689 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC16*> FindL() storage server FindL() returned err = %d when looking for <%08x>, masked with <%08x>"), err, ElementId(), mask); |
|
690 } |
|
691 } |
|
692 #ifdef __DEBUG |
|
693 else if ( aIds->Count() > 1) |
|
694 { |
|
695 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC16*> FindL() storage server FindL/FindEqL %d fields found for id. Should be 1 or 0."), aIds.Count(), ElementId() & mask); |
|
696 } |
|
697 #endif |
|
698 |
|
699 return err; |
|
700 } |
|
701 |
|
702 |
|
703 |
|
704 template <> |
|
705 inline TInt TMDBVisitor<HBufC8*>::FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds) |
|
706 /* |
|
707 Only find dont actually load |
|
708 Assumes fully resolved element Id but still needs mask for reserved bits |
|
709 |
|
710 @internalComponent |
|
711 */ |
|
712 { |
|
713 if (! iTarget || ! iTarget->iValue ) |
|
714 { |
|
715 User::Leave(KErrNotReady); |
|
716 } |
|
717 |
|
718 // want to find this field in any record of this type that has appropriate attributes |
|
719 // so mask out recordid, reserved bits and any attributes that need not be observed. |
|
720 // TUint32 mask = KCDMaskShowType | (~aAttributeFlags & KCDMaskShowAttributes); |
|
721 TUint32 mask = KCDMaskShowType | aSession->GetReadAttributeMask(); |
|
722 |
|
723 TInt err(KErrNotFound); |
|
724 |
|
725 if (Changed()) |
|
726 { |
|
727 const TDesC8& val = *iTarget->iValue; |
|
728 // An absent text field is treated as being synonymous with one that is present but blank, ie |
|
729 // searching for an empty descriptor matches both actual blanks and fields that aren't found. Because |
|
730 // CenRep doesn't support such a thing we're forced to get handle this case by brute force: get the set |
|
731 // of all record ids, fetch the desired field for each, and remove those records where the field is present |
|
732 // and non blank. |
|
733 // @TODO - find a cleaner way to achieve this |
|
734 if(val.Length() == 0) |
|
735 { |
|
736 TUint32 recId = (ElementId() & ~KCDMaskShowFieldType) | KCDInitialColumnId; |
|
737 err = aSession->StorageL()->FindL(recId & ~aSession->GetReadAttributeMask(), mask, aIds); |
|
738 if(err == KErrNone) |
|
739 { |
|
740 TBuf8<1> dummyVal; // doesn't matter if it overflows; mere presence of non-blank is all we seek |
|
741 for(TInt idx = aIds.Count() - 1; idx >= 0; --idx) |
|
742 { |
|
743 TUint32 fldId = (aIds[idx] & ~KCDMaskShowFieldType) | (ElementId() & KCDMaskShowFieldType); |
|
744 TInt lookupErr = aSession->StorageL()->Get(fldId, dummyVal); |
|
745 if(lookupErr == KErrOverflow || (lookupErr == KErrNone && dummyVal.Length() != 0)) |
|
746 { |
|
747 // comparison field does exist in this specific record but didn't match "" - remove |
|
748 aIds.Remove(idx); |
|
749 } |
|
750 } |
|
751 } |
|
752 } |
|
753 else |
|
754 { |
|
755 err = aSession->StorageL()->FindEqL(ElementId() & ~aSession->GetReadAttributeMask(), mask, val, aIds); |
|
756 |
|
757 RArray<TUint32> ids; |
|
758 CleanupClosePushL(ids); |
|
759 |
|
760 mask = (mask & ~ECDHidden) | KCDMaskShowRecordId; |
|
761 |
|
762 // Now look in template record |
|
763 err = aSession->StorageL()->FindEqL(ElementId() & ~KCDMaskShowRecordId, mask, val, ids); |
|
764 |
|
765 if ( err == KErrNone ) |
|
766 { |
|
767 FindRecordsUsingTemplateL(aSession, ids, aIds); |
|
768 } |
|
769 |
|
770 if ( aIds.Count() ) |
|
771 { |
|
772 err = KErrNone; |
|
773 } |
|
774 |
|
775 CleanupStack::PopAndDestroy(&ids); |
|
776 } |
|
777 } |
|
778 else |
|
779 { |
|
780 err = aSession->StorageL()->FindL(ElementId() & ~aSession->GetReadAttributeMask(), mask, aIds); |
|
781 } |
|
782 |
|
783 if ( aIds.Count() == 0) |
|
784 { |
|
785 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC8*> FindL() storage server FindL returned err = %d when looking for %08x, masked with %08x"), err, ElementId(), mask); |
|
786 if (err == KErrNone || err == KErrNotFound) |
|
787 { |
|
788 __FLOG_STATIC2(KLogComponent, KCDInfoLog, _L("TMDBVisitor<HBufC8*> FindL() storage server FindL did not find <%08x> masked with <%08x>"), ElementId(), mask); |
|
789 err = KErrNotFound; |
|
790 } |
|
791 else |
|
792 { |
|
793 __FLOG_STATIC3(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC8*> FindL() storage server FindL returned err = %d when looking for <%08x>, masked with <%08x>"), err, ElementId(), mask); |
|
794 } |
|
795 } |
|
796 #ifdef __DEBUG |
|
797 else if ( aIds->Count() > 1) |
|
798 { |
|
799 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC8*> FindL() storage server FindL/FindEqL %d fields found when looking for <%08x>. Should be 1 or 0."), aIds.Count(), ElementId() & mask); |
|
800 } |
|
801 #endif |
|
802 |
|
803 return err; |
|
804 } |
|
805 |
|
806 |
|
807 |
|
808 template<class TYPE> |
|
809 inline TInt TMDBVisitor<TYPE>::StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags) |
|
810 /* |
|
811 Store the field in the repository |
|
812 |
|
813 @internalComponent |
|
814 */ |
|
815 { |
|
816 if (! iTarget || ! iElementId ) |
|
817 { |
|
818 User::Leave(KErrNotReady); |
|
819 } |
|
820 |
|
821 *iElementId = (*iElementId & ~KCDMaskShowRecordId) | (aRecordId & KCDMaskShowRecordId) | aAttributeFlags; |
|
822 return aSession->StorageL()->Create( ElementId() & KCDMaskHideRes, iTarget->iValue); |
|
823 } |
|
824 |
|
825 |
|
826 |
|
827 template<> |
|
828 inline TInt TMDBVisitor<HBufC16*>::StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags) |
|
829 /* |
|
830 Store the field in the repository |
|
831 |
|
832 @internalComponent |
|
833 */ |
|
834 { |
|
835 if (! iTarget || ! iElementId ) |
|
836 { |
|
837 User::Leave(KErrNotReady); |
|
838 } |
|
839 |
|
840 *iElementId = (*iElementId & ~KCDMaskShowRecordId) | (aRecordId & KCDMaskShowRecordId) | aAttributeFlags; |
|
841 return aSession->StorageL()->Create( ElementId() & KCDMaskHideRes, *(iTarget->iValue)); |
|
842 } |
|
843 |
|
844 |
|
845 |
|
846 template<> |
|
847 inline TInt TMDBVisitor<HBufC8*>::StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags) |
|
848 /* |
|
849 Store the field in the repository |
|
850 |
|
851 @internalComponent |
|
852 */ |
|
853 { |
|
854 if (! iTarget || ! iTarget->iValue ) |
|
855 { |
|
856 User::Leave(KErrNotReady); |
|
857 } |
|
858 |
|
859 *iElementId = (*iElementId & ~KCDMaskShowRecordId) | (aRecordId & KCDMaskShowRecordId) | aAttributeFlags; |
|
860 return aSession->StorageL()->Create( ElementId() & KCDMaskHideRes, *(iTarget->iValue)); |
|
861 } |
|
862 |
|
863 |
|
864 |
|
865 template<class TYPE> |
|
866 inline TInt TMDBVisitor<TYPE>::ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags) |
|
867 /* |
|
868 Modify the value of a field if the field exists |
|
869 Never need to modify attributes as this is always done via the node. |
|
870 |
|
871 @internalComponent |
|
872 */ |
|
873 { |
|
874 TInt err(KErrNotFound); |
|
875 |
|
876 if (! iTarget || !iElementId ) |
|
877 { |
|
878 User::Leave(KErrNotReady); |
|
879 } |
|
880 |
|
881 *iElementId |= aAttributeFlags; |
|
882 |
|
883 TUint32 mask = (KCDMaskShowType | KCDMaskShowRecordId); |
|
884 |
|
885 RArray<TUint32> ids; |
|
886 CleanupClosePushL(ids); |
|
887 |
|
888 err = aSession->StorageL()->FindL(ElementId(), mask, ids); |
|
889 |
|
890 if (ids.Count() > 0) |
|
891 { |
|
892 |
|
893 #ifdef __DEBUG |
|
894 if (ids.Count() > 1) |
|
895 { |
|
896 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> ModifyL() storage server FindL/FindEqL %d fields found when looking for id %08x. Should be 1 or 0."), aIds.Count(), ElementId() & mask); |
|
897 } |
|
898 #endif |
|
899 |
|
900 err = aSession->StorageL()->Set(ElementId() & KCDMaskHideRes, iTarget->iValue); |
|
901 } |
|
902 else |
|
903 { |
|
904 err = aSession->StorageL()->Create(ElementId() & KCDMaskHideRes, iTarget->iValue); |
|
905 } |
|
906 |
|
907 CleanupStack::PopAndDestroy(&ids); |
|
908 return err; |
|
909 } |
|
910 |
|
911 |
|
912 |
|
913 |
|
914 template<> |
|
915 inline TInt TMDBVisitor<HBufC16*>::ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags) |
|
916 /* |
|
917 ElementId must be fully resolved before this call |
|
918 |
|
919 @internalComponent |
|
920 */ |
|
921 { |
|
922 if (! iTarget || !iElementId ) |
|
923 { |
|
924 User::Leave(KErrNotReady); |
|
925 } |
|
926 |
|
927 *iElementId |= aAttributeFlags; |
|
928 TUint32 mask = KCDMaskShowType | KCDMaskShowRecordId; |
|
929 |
|
930 RArray<TUint32> ids; |
|
931 CleanupClosePushL(ids); |
|
932 |
|
933 TInt err = aSession->StorageL()->FindL(ElementId(), mask, ids); |
|
934 |
|
935 if (ids.Count() > 0) |
|
936 { |
|
937 #ifdef DEBUG |
|
938 if (ids.Count() > 1) |
|
939 { |
|
940 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<TYPE> ModifyL() storage server FindL/FindEqL %d fields found when looking for id %08x. Should be 1 or 0."), aIds.Count(), ElementId() & mask); |
|
941 } |
|
942 #endif |
|
943 |
|
944 if(! iTarget->iValue) |
|
945 { |
|
946 return KErrNone; |
|
947 } |
|
948 |
|
949 err = aSession->StorageL()->Set(ElementId() & KCDMaskHideRes, *(iTarget->iValue)); |
|
950 } |
|
951 else |
|
952 { |
|
953 if(! iTarget->iValue) |
|
954 { |
|
955 return KErrNone; |
|
956 } |
|
957 err = aSession->StorageL()->Create(ElementId() & KCDMaskHideRes, *(iTarget->iValue)); |
|
958 } |
|
959 |
|
960 CleanupStack::PopAndDestroy(&ids); |
|
961 return err; |
|
962 } |
|
963 |
|
964 |
|
965 |
|
966 template<> |
|
967 inline TInt TMDBVisitor<HBufC8*>::ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags) |
|
968 /* |
|
969 ElementId must be fully resolved before this call |
|
970 |
|
971 @internalComponent |
|
972 */ |
|
973 { |
|
974 if (! iTarget || !iElementId ) |
|
975 { |
|
976 User::Leave(KErrNotReady); |
|
977 } |
|
978 |
|
979 *iElementId |= aAttributeFlags; |
|
980 TUint32 mask = KCDMaskShowType | KCDMaskShowRecordId; |
|
981 |
|
982 RArray<TUint32> ids; |
|
983 CleanupClosePushL(ids); |
|
984 |
|
985 TInt err = aSession->StorageL()->FindL(ElementId(), mask, ids); |
|
986 |
|
987 if (ids.Count() > 0) |
|
988 { |
|
989 #ifdef __DEBUG |
|
990 if (ids.Count() > 1) |
|
991 { |
|
992 __FLOG_STATIC2(KLogComponent, KCDErrLog, _L("TMDBVisitor<HBufC8*> ModifyL() storage server FindL/FindEqL %d fields found when looking for %08x. Should be 1 or 0."), ids.Count(), ElementId() & mask); |
|
993 } |
|
994 #endif |
|
995 |
|
996 if(! iTarget->iValue) |
|
997 { |
|
998 return KErrNone; |
|
999 } |
|
1000 |
|
1001 err = aSession->StorageL()->Set(ElementId() & KCDMaskHideRes, *(iTarget->iValue)); |
|
1002 } |
|
1003 else |
|
1004 { |
|
1005 if(! iTarget->iValue) |
|
1006 { |
|
1007 return KErrNone; |
|
1008 } |
|
1009 |
|
1010 err = aSession->StorageL()->Create(ElementId() & KCDMaskHideRes, *(iTarget->iValue)); |
|
1011 } |
|
1012 |
|
1013 CleanupStack::PopAndDestroy(&ids); |
|
1014 return err; |
|
1015 } |
|
1016 |
|
1017 |
|
1018 |
|
1019 /////////////////////////////////////////////////////////////////////////////////////////////////////////// |
|
1020 // Record Set Visitor |
|
1021 // |
|
1022 |
|
1023 NONSHARABLE_CLASS(TMDBRecordSetVisitor) : public TMDBVisitorBase |
|
1024 /* |
|
1025 A visitor for CMDBRecordSet.data |
|
1026 |
|
1027 @internalComponent |
|
1028 */ |
|
1029 { |
|
1030 public: |
|
1031 |
|
1032 static TMDBRecordSetVisitor* NewL(const TAny* aMem, const TAny* aData); |
|
1033 |
|
1034 // GET |
|
1035 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
|
1036 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags, RArray<TUint32>& aIds); |
|
1037 TInt FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds); |
|
1038 TInt RefreshL(CMDBSessionImpl* aSession); |
|
1039 |
|
1040 // SET |
|
1041 TInt StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
|
1042 TInt ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags); |
|
1043 |
|
1044 TInt Changed() const; |
|
1045 void Sync(){} // do nothing - leave changed flag set |
|
1046 |
|
1047 //void SetOwner(CMDBElement* aOwner); |
|
1048 |
|
1049 public: |
|
1050 |
|
1051 RPointerArray<CMDBRecordBase>* iTarget; |
|
1052 |
|
1053 protected: |
|
1054 |
|
1055 TMDBRecordSetVisitor(RPointerArray<CMDBRecordBase>* aData); |
|
1056 |
|
1057 private: |
|
1058 |
|
1059 void DoFindL(CMDBSessionImpl& aSession, CMDBElement& aElement, TInt& aErr, RArray<TUint32>& aCandidates, RArray<TUint32>& aMatches); |
|
1060 }; |
|
1061 |
|
1062 |
|
1063 |
|
1064 |
|
1065 //////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
|
1066 // Record Link Visitor |
|
1067 // |
|
1068 |
|
1069 |
|
1070 NONSHARABLE_CLASS(TMDBRecordLinkVisitor) : public TMDBVisitor<TInt> |
|
1071 /* |
|
1072 A visitor for linked record data |
|
1073 |
|
1074 @internalComponent |
|
1075 */ |
|
1076 { |
|
1077 public: |
|
1078 static TMDBRecordLinkVisitor* NewL(const TAny* aMem, const TAny* aData); |
|
1079 |
|
1080 // GET |
|
1081 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
|
1082 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags, RArray<TUint32>& aIds); |
|
1083 TInt FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds); |
|
1084 TInt RefreshL(CMDBSessionImpl* aSession); |
|
1085 TInt GetL(CMDBSessionImpl* aSession); |
|
1086 |
|
1087 // SET |
|
1088 TInt StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
|
1089 TInt ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags); |
|
1090 |
|
1091 TInt Changed() const; |
|
1092 void SetOwner(CMDBElement* aOwner); |
|
1093 |
|
1094 private: |
|
1095 void SetLinkValueL(CMDBSession& aSession); |
|
1096 |
|
1097 void CheckLinkedRecordL(TMDBElementId aLinkedElementId); |
|
1098 |
|
1099 void CreateLinkedRecordL(CMDBSession& aSession, TMDBElementId aLinkedElementId); |
|
1100 |
|
1101 void CheckLinkValueL(TMDBElementId aLinkedElementId); |
|
1102 |
|
1103 void MaintainBCForLegacyLinks(); |
|
1104 public: |
|
1105 |
|
1106 CMDBElement** iLinkedRecord; |
|
1107 |
|
1108 protected: |
|
1109 |
|
1110 TMDBRecordLinkVisitor(CMDBElement** aData); |
|
1111 }; |
|
1112 |
|
1113 |
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1114 |
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1115 |
|
1116 //////////////////////////////////////////////////////////////////////////////////////////////////////////////// |
|
1117 // User defined Record Visitor |
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1118 // |
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1119 |
|
1120 |
|
1121 NONSHARABLE_CLASS(TMDBGenericRecordVisitor) : public TMDBVisitorBase |
|
1122 /* |
|
1123 A visitor for data inside a user-defined record |
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1124 |
|
1125 @internalComponent |
|
1126 */ |
|
1127 { |
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1128 public: |
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1129 |
|
1130 static TMDBGenericRecordVisitor* NewL(const TAny* aMem, const TAny* aData); |
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1131 |
|
1132 // GET |
|
1133 void LoadTableInfoL(CMDBSessionImpl& aSession, TMDBAttributeFlags aAttributeFlags, CMDBGenericRecord& aRealOwner); |
|
1134 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
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1135 TInt LoadL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags, RArray<TUint32>& aIds); |
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1136 void FindTableL(CMDBSessionImpl& aSession, CMDBGenericRecord& aRealOwner, RArray<TUint32>& aMatchingIds); |
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1137 TInt FindL(CMDBSessionImpl* aSession, RArray<TUint32>& aIds); |
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1138 TInt RefreshL(CMDBSessionImpl* aSession); |
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1139 |
|
1140 // SET |
|
1141 void StoreTableInfoL(CMDBSessionImpl& aSession, CMDBGenericRecord& aRealOwner); |
|
1142 TInt StoreL(CMDBSessionImpl* aSession, TMDBElementId aRecordId, TMDBAttributeFlags aAttributeFlags); |
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1143 TInt ModifyL(CMDBSessionImpl* aSession, TMDBAttributeFlags aAttributeFlags); |
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1144 |
|
1145 TInt Changed() const; |
|
1146 void Sync(){} // do nothing - leave changed flag set |
|
1147 //void SetOwner(CMDBElement* aOwner); |
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1148 |
|
1149 public: |
|
1150 |
|
1151 RPointerArray<CMDBElement>* iTarget; |
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1152 |
|
1153 protected: |
|
1154 |
|
1155 TMDBGenericRecordVisitor(RPointerArray<CMDBElement>* aData); |
|
1156 |
|
1157 TMDBVisitorBase* CreateVisitorL(TAny* mem, CMDBElement* element, SGenericRecordTypeInfo* aRecordInfo); |
|
1158 |
|
1159 private: |
|
1160 |
|
1161 CMDBGenericRecord* SetReadyL(); |
|
1162 }; |
|
1163 |
|
1164 |
|
1165 |
|
1166 } // End namespace CommsDat |
|
1167 |
|
1168 |
|
1169 |
|
1170 #endif //METADATABASEVISITOR_H |