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1 /* |
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2 * Copyright (c) 2005-2009 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: Implementation of object, relation and event query |
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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 __MDEQUERYIMPL_H__ |
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20 #define __MDEQUERYIMPL_H__ |
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21 |
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22 #include "mdeobjectquery.h" |
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23 #include "mderelationquery.h" |
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24 #include "mdeeventquery.h" |
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25 |
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26 // Forward declaration |
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27 class CMdESessionImpl; |
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28 class CMdENamespaceDef; |
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29 class CMdEObjectDef; |
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30 class RMdEEngineSession; |
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31 class CMdEAsynchronousFindAO; |
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32 |
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33 /** |
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34 * Object query implementation. |
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35 */ |
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36 NONSHARABLE_CLASS(CMdEObjectQueryImpl) : public CMdEObjectQuery |
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37 { |
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38 public: |
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39 |
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40 /* Constructors and destructor. */ |
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41 /** |
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42 * Two-phased constructor. |
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43 */ |
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44 static CMdEObjectQueryImpl* NewL( CMdESessionImpl& aSessionImpl, CMdENamespaceDef& aNamespaceDef, |
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45 CMdEObjectDef& aObjectDef, RPointerArray<CMdEObjectDef>* aObjectDefs, |
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46 RMdEEngineSession& aSession ); |
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47 |
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48 static CMdEObjectQueryImpl* NewLC( CMdESessionImpl& aSessionImpl, CMdENamespaceDef& aNamespaceDef, |
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49 CMdEObjectDef& aObjectDef, RPointerArray<CMdEObjectDef>* aObjectDefs, |
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50 RMdEEngineSession& aSession ); |
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51 |
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52 /** |
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53 * Destructor. |
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54 */ |
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55 virtual ~CMdEObjectQueryImpl(); |
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56 |
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57 |
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58 /* Methods. */ |
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59 |
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60 /** |
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61 * As in CMdEQuery. |
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62 */ |
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63 void DoFindL( TUint aMaxCount, TUint aNotifyCount ); |
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64 |
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65 /** |
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66 * Notifies results |
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67 */ |
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68 void DoNotifyResultsL( RPointerArray<CMdEInstanceItem>& aResultList ); |
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69 |
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70 /** |
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71 * Notifies results of id query |
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72 */ |
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73 void DoNotifyResultsL( RArray<TItemId>& aResultIdList ); |
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74 |
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75 /** |
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76 * Notifies result of distinct values query |
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77 */ |
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78 void DoNotifyResultsL( CDesCArray& aResults ); |
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79 |
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80 /** |
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81 * Notifies result of count query |
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82 */ |
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83 void DoNotifyResults( TInt aResultCount ); |
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84 |
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85 /** |
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86 * Notifies query completed |
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87 */ |
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88 void DoNotifyCompleted( TInt aError ); |
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89 |
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90 protected: |
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91 |
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92 /** |
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93 * As in CMdEQuery. |
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94 */ |
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95 void DoCancel(); |
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96 |
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97 private: |
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98 /** |
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99 * Constructor. Note that new queries should be created using the factory |
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100 * @param aSessionImpl the session |
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101 */ |
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102 CMdEObjectQueryImpl( CMdESessionImpl& aSessionImpl, CMdENamespaceDef& aNamespaceDef, |
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103 CMdEObjectDef& aObjectDef, RPointerArray<CMdEObjectDef>* aObjectDefs ); |
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104 |
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105 /** |
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106 * Second-phase constructor. |
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107 * @param aSession reference to the engine session |
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108 */ |
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109 void ConstructL( CMdESessionImpl& aSessionImpl, RMdEEngineSession& aSession ); |
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110 |
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111 |
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112 private: |
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113 |
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114 /** Asynchronous find support. */ |
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115 CMdEAsynchronousFindAO* iAsyncFind; |
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116 }; |
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117 |
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118 /** |
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119 * Relation query stub implementation. |
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120 */ |
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121 class CMdERelationQueryImpl |
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122 : public CMdERelationQuery |
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123 { |
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124 public: |
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125 |
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126 /* Constructors and destructor. */ |
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127 /** |
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128 * Two-phased constructor. |
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129 */ |
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130 static CMdERelationQueryImpl* NewL( CMdESessionImpl& aSessionImpl, |
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131 CMdENamespaceDef& aNamespaceDef, RMdEEngineSession& aSession ); |
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132 |
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133 static CMdERelationQueryImpl* NewLC( CMdESessionImpl& aSessionImpl, |
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134 CMdENamespaceDef& aNamespaceDef, RMdEEngineSession& aSession ); |
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135 |
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136 /** |
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137 * Destructor. |
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138 */ |
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139 virtual ~CMdERelationQueryImpl(); |
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140 |
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141 |
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142 /* Methods from CMdERelationQuery. */ |
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143 |
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144 /** |
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145 * As in CMdEQuery. |
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146 */ |
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147 void DoFindL( TUint aMaxCount, TUint aNotifyCount ); |
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148 |
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149 /** |
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150 * Notifies results |
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151 */ |
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152 void DoNotifyResultsL( RPointerArray<CMdEInstanceItem>& aResultList ); |
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153 |
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154 /** |
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155 * Notifies results of id query |
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156 */ |
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157 void DoNotifyResultsL( RArray<TItemId>& aResultIdList ); |
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158 |
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159 /** |
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160 * Notifies result of count query |
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161 */ |
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162 void DoNotifyResults( TUint32 aResultCount ); |
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163 |
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164 /** |
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165 * Notifies query completed |
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166 */ |
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167 void DoNotifyCompleted( TInt aError ); |
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168 |
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169 protected: |
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170 |
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171 /** |
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172 * As in CMdEQuery. |
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173 */ |
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174 void DoCancel(); |
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175 |
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176 private: |
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177 /** |
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178 * Constructs a new relation query in the specified session. |
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179 * @param aSessionImpl the session |
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180 */ |
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181 CMdERelationQueryImpl( CMdESessionImpl& aSessionImpl, CMdENamespaceDef& aNamespaceDef ); |
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182 |
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183 /** |
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184 * Second-phase constructor. |
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185 * @param aSession reference to the engine session |
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186 */ |
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187 void ConstructL( CMdESessionImpl& aSessionImpl, RMdEEngineSession& aSession ); |
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188 |
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189 |
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190 private: |
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191 |
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192 /** Asynchronous find support. */ |
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193 CMdEAsynchronousFindAO* iAsyncFind; |
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194 }; |
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195 |
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196 /** |
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197 * Event query implementation. |
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198 */ |
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199 class CMdEEventQueryImpl: public CMdEEventQuery |
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200 { |
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201 public: |
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202 |
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203 /* Constructors and destructor. */ |
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204 |
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205 static CMdEEventQueryImpl* NewL( CMdESessionImpl& aSessionImpl, |
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206 CMdENamespaceDef& aNamespaceDef, RMdEEngineSession& aSession ); |
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207 |
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208 static CMdEEventQueryImpl* NewLC( CMdESessionImpl& aSessionImpl, |
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209 CMdENamespaceDef& aNamespaceDef, RMdEEngineSession& aSession ); |
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210 |
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211 /** |
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212 * Destructor. |
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213 */ |
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214 virtual ~CMdEEventQueryImpl(); |
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215 |
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216 |
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217 /* Methods from CMdEEventQuery. */ |
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218 |
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219 /** |
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220 * As in CMdEQuery. |
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221 */ |
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222 void DoFindL( TUint aMaxCount, TUint aNotifyCount ); |
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223 |
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224 /** |
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225 * Notifies results |
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226 */ |
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227 void DoNotifyResultsL( RPointerArray<CMdEInstanceItem>& aResultList ); |
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228 |
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229 /** |
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230 * Notifies results of id query |
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231 */ |
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232 void DoNotifyResultsL( RArray<TItemId>& aResultIdList ); |
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233 |
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234 /** |
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235 * Notifies result of count query |
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236 */ |
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237 void DoNotifyResults( TUint32 aResultCount ); |
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238 |
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239 /** |
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240 * Notifies query completed |
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241 */ |
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242 void DoNotifyCompleted( TInt aError ); |
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243 |
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244 protected: |
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245 |
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246 /** |
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247 * As in CMdEQuery. |
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248 */ |
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249 void DoCancel(); |
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250 |
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251 private: |
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252 /** |
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253 * Constructs a new event query in the specified session. |
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254 * @param aSessionImpl the session |
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255 */ |
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256 CMdEEventQueryImpl( CMdESessionImpl& aSessionImpl, CMdENamespaceDef& aNamespaceDef ); |
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257 |
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258 /** |
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259 * Second-phase constructor. |
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260 * @param aSession reference to the engine session |
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261 */ |
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262 void ConstructL( CMdESessionImpl& aSessionImpl, RMdEEngineSession& aSession ); |
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263 |
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264 |
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265 private: |
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266 |
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267 /** Asynchronous find support. */ |
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268 CMdEAsynchronousFindAO* iAsyncFind; |
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269 }; |
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270 |
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271 #endif // __MDEQUERYIMPL_H__ |