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1 /* |
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2 * Copyright (c) 2006 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: This file implements the Location triggering container |
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15 * interface |
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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 #include "lbtdboperationao.h" |
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21 #include "lbtdbtriggersmanager.h" |
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22 #include "lbtlogger.h" |
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23 |
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24 |
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25 // ======== MEMBER FUNCTIONS ======== |
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26 |
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27 |
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28 // --------------------------------------------------------------------------- |
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29 // The Symbian 2 phase constructor |
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30 // --------------------------------------------------------------------------- |
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31 // |
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32 CLbtDbOperationAO* CLbtDbOperationAO::NewL( |
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33 RDbDatabase& aDb, |
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34 CLbtDbTriggersManager* aObserver) |
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35 { |
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36 CLbtDbOperationAO* self = new( ELeave ) CLbtDbOperationAO(aDb, aObserver); |
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37 CleanupStack::PushL( self ); |
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38 self->ConstructL(); |
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39 CleanupStack::Pop( self ); |
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40 return self; |
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41 } |
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42 |
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43 |
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44 // --------------------------------------------------------------------------- |
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45 // Execute a SQL query asynchronously |
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46 // --------------------------------------------------------------------------- |
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47 // |
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48 void CLbtDbOperationAO::ExecuteQuery( |
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49 RDbView& aView, |
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50 TDesC& aQuery) |
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51 { |
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52 FUNC_ENTER("CLbtDbOperationAO::ExecuteQuery"); |
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53 if ( IsActive() ) |
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54 { |
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55 // We are already executing an asynchronous operation so return error |
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56 TRAP_IGNORE( iObserver->DbSqlOperationCompletedL( KErrInUse ) ); |
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57 return; |
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58 } |
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59 |
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60 iView = &aView; |
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61 iView->Prepare( iDb, TDbQuery(aQuery, EDbCompareFolded) ); |
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62 iView->Evaluate(iStatus); |
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63 SetActive(); |
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64 iOperation = EDbSqlQuery; |
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65 } |
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66 |
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67 |
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68 // --------------------------------------------------------------------------- |
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69 // CLbtDbOperationAO::ExecuteSyncQuery |
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70 // --------------------------------------------------------------------------- |
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71 // |
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72 TInt CLbtDbOperationAO::ExecuteSyncQuery( |
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73 RDbView& aView, |
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74 TDesC& aQuery) |
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75 { |
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76 FUNC_ENTER("CLbtDbOperationAO::ExecuteSyncQuery"); |
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77 TInt err = aView.Prepare( iDb, TDbQuery(aQuery, EDbCompareFolded),KDbUnlimitedWindow ); |
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78 // This should evaluate the query fully |
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79 if ( err == KErrNone ) |
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80 { |
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81 err = aView.EvaluateAll(); |
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82 } |
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83 return err; |
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84 } |
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85 |
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86 // --------------------------------------------------------------------------- |
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87 // Compact the database |
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88 // --------------------------------------------------------------------------- |
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89 // |
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90 void CLbtDbOperationAO::CompactDb() |
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91 { |
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92 FUNC_ENTER("CLbtDbOperationAO::CompactDb"); |
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93 if ( IsActive() ) |
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94 { |
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95 // We are already executing an asynchronous operation so return error |
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96 iObserver->DbIncrementalOperationCompleted( KErrInUse ); |
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97 return; |
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98 } |
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99 |
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100 TInt error = iDbIncrOp.Compact(iDb, iSteps); |
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101 if(error != KErrNone) |
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102 { |
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103 ERROR("iDbIncrOp.Compact returned %d", error); |
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104 iDbIncrOp.Close(); |
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105 return; |
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106 } |
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107 error = iDbIncrOp.Next( iSteps ); |
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108 iStatus = KRequestPending; |
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109 SetActive(); |
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110 iOperation = EDbCompaction; |
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111 iStatus = KRequestPending; |
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112 TRequestStatus* status = &iStatus; |
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113 User::RequestComplete(status, error); |
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114 } |
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115 |
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116 // --------------------------------------------------------------------------- |
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117 // DoCancel |
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118 // --------------------------------------------------------------------------- |
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119 // |
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120 TBool CLbtDbOperationAO::IsCompactionOngoing() |
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121 { |
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122 if( EDbCompaction == iOperation ) |
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123 { |
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124 return ETrue; |
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125 } |
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126 return EFalse; |
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127 } |
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128 |
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129 |
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130 // --------------------------------------------------------------------------- |
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131 // DoCancel |
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132 // --------------------------------------------------------------------------- |
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133 // |
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134 void CLbtDbOperationAO::DoCancel() |
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135 { |
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136 FUNC_ENTER("CLbtDbOperationAO::DoCancel"); |
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137 switch( iOperation ) |
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138 { |
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139 case EDbSqlQuery: |
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140 iView->Cancel(); |
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141 break; |
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142 case EDbCompaction: |
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143 // Nothing to do here since the step is already completed. |
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144 break; |
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145 default: |
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146 break; |
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147 } |
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148 iOperation = EDbOperationNone; |
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149 } |
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150 |
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151 |
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152 // --------------------------------------------------------------------------- |
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153 // RunL |
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154 // --------------------------------------------------------------------------- |
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155 // |
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156 void CLbtDbOperationAO::RunL() |
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157 { |
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158 FUNC_ENTER("CLbtDbOperationAO::RunL"); |
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159 switch( iOperation ) |
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160 { |
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161 case EDbSqlQuery: |
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162 if ( iStatus.Int() > 0 ) |
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163 { |
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164 iView->Evaluate(iStatus); |
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165 SetActive(); |
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166 } |
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167 else |
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168 { |
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169 iOperation = EDbOperationNone; |
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170 iObserver->DbSqlOperationCompletedL( iStatus.Int() ); |
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171 } |
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172 break; |
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173 case EDbCompaction: |
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174 if ( iStatus.Int() == KErrNone && iSteps ) |
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175 { |
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176 // If the steps till now have been successful and if there |
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177 // are more steps to be executed |
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178 TInt error = iDbIncrOp.Next( iSteps ); |
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179 iStatus = KRequestPending; |
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180 SetActive(); |
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181 TRequestStatus* status = &iStatus; |
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182 User::RequestComplete(status, error); |
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183 } |
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184 else |
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185 { |
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186 // Either the operation was fully completed or |
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187 // there was an error during database compaction. |
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188 // So just close the incremental operation and |
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189 // return the error (in case of the error). |
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190 iDbIncrOp.Close(); |
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191 iOperation = EDbOperationNone; |
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192 iObserver->DbIncrementalOperationCompleted( iStatus.Int() ); |
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193 } |
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194 break; |
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195 default: |
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196 // Nothing to do in this case |
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197 break; |
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198 } |
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199 } |
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200 |
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201 |
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202 // --------------------------------------------------------------------------- |
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203 // RunError |
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204 // --------------------------------------------------------------------------- |
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205 // |
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206 TInt CLbtDbOperationAO::RunError(TInt /*aError*/) |
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207 { |
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208 FUNC_ENTER("CLbtDbOperationAO::RunError"); |
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209 // RunL doesn't have any Leaving calls. So no implementation here. |
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210 return KErrNone; |
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211 } |
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212 |
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213 |
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214 // --------------------------------------------------------------------------- |
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215 // Destructor |
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216 // --------------------------------------------------------------------------- |
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217 // |
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218 CLbtDbOperationAO::~CLbtDbOperationAO() |
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219 { |
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220 FUNC_ENTER("CLbtDbOperationAO::~CLbtDbOperationAO"); |
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221 } |
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222 |
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223 // --------------------------------------------------------------------------- |
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224 // Constructor |
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225 // --------------------------------------------------------------------------- |
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226 // |
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227 CLbtDbOperationAO::CLbtDbOperationAO( |
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228 RDbDatabase& aDb, |
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229 CLbtDbTriggersManager* aObserver) |
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230 :CActive(CActive::EPriorityStandard), |
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231 iDb(aDb), |
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232 iObserver(aObserver), |
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233 iOperation(EDbOperationNone) |
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234 { |
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235 CActiveScheduler::Add(this); |
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236 } |
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237 |
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238 |
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239 // --------------------------------------------------------------------------- |
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240 // The 2nd phase Symbian Constructor |
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241 // --------------------------------------------------------------------------- |
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242 // |
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243 void CLbtDbOperationAO::ConstructL() |
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244 { |
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245 } |
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246 |
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247 |