Complex classes like AnnotationDriver often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use AnnotationDriver, and based on these observations, apply Extract Interface, too.
1 | <?php |
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38 | class AnnotationDriver extends AbstractAnnotationDriver |
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39 | { |
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40 | protected $entityAnnotationClasses = array( |
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41 | ODM\Document::class => 1, |
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42 | ODM\MappedSuperclass::class => 2, |
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43 | ODM\EmbeddedDocument::class => 3, |
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44 | ODM\QueryResultDocument::class => 4, |
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45 | ); |
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46 | |||
47 | /** |
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48 | * Registers annotation classes to the common registry. |
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49 | * |
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50 | * This method should be called when bootstrapping your application. |
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51 | * |
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52 | * @deprecated method was deprecated in 1.2 and will be removed in 2.0. Register class loader through AnnotationRegistry::registerLoader instead. |
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53 | */ |
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54 | public static function registerAnnotationClasses() |
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62 | |||
63 | /** |
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64 | * {@inheritdoc} |
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65 | */ |
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66 | 903 | public function loadMetadataForClass($className, ClassMetadata $class) |
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67 | { |
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68 | /** @var $class ClassMetadataInfo */ |
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69 | 903 | $reflClass = $class->getReflectionClass(); |
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70 | |||
71 | 903 | $classAnnotations = $this->reader->getClassAnnotations($reflClass); |
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72 | |||
73 | 903 | $documentAnnots = array(); |
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74 | 903 | foreach ($classAnnotations as $annot) { |
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75 | 901 | $classAnnotations[get_class($annot)] = $annot; |
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76 | |||
77 | 901 | foreach ($this->entityAnnotationClasses as $annotClass => $i) { |
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78 | 901 | if ($annot instanceof $annotClass) { |
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79 | 901 | $documentAnnots[$i] = $annot; |
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80 | 901 | continue 2; |
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81 | } |
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82 | } |
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83 | |||
84 | // non-document class annotations |
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85 | 396 | if ($annot instanceof ODM\AbstractIndex) { |
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86 | 13 | $this->addIndex($class, $annot); |
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87 | } |
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88 | 396 | if ($annot instanceof ODM\Indexes) { |
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89 | 65 | foreach (is_array($annot->value) ? $annot->value : array($annot->value) as $index) { |
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90 | 65 | $this->addIndex($class, $index); |
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91 | } |
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92 | 385 | } elseif ($annot instanceof ODM\InheritanceType) { |
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93 | 313 | $class->setInheritanceType(constant(MappingClassMetadata::class . '::INHERITANCE_TYPE_'.$annot->value)); |
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94 | 383 | } elseif ($annot instanceof ODM\DiscriminatorField) { |
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95 | // $fieldName property is deprecated, but fall back for BC |
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96 | 121 | if (isset($annot->value)) { |
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97 | 121 | $class->setDiscriminatorField($annot->value); |
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98 | } elseif (isset($annot->name)) { |
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99 | @trigger_error( |
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100 | sprintf('Specifying discriminator\'s name through "name" is deprecated - use @DiscriminatorField("%s") instead', $annot->name), |
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101 | E_USER_DEPRECATED |
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102 | ); |
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103 | $class->setDiscriminatorField($annot->name); |
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104 | } elseif (isset($annot->fieldName)) { |
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105 | @trigger_error( |
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106 | sprintf('Specifying discriminator\'s name through "name" is deprecated - use @DiscriminatorField("%s") instead', $annot->fieldName), |
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107 | E_USER_DEPRECATED |
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108 | ); |
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109 | $class->setDiscriminatorField($annot->fieldName); |
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110 | } |
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111 | 382 | } elseif ($annot instanceof ODM\DiscriminatorMap) { |
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112 | 121 | $class->setDiscriminatorMap($annot->value); |
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113 | 320 | } elseif ($annot instanceof ODM\DiscriminatorValue) { |
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114 | $class->setDiscriminatorValue($annot->value); |
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115 | 320 | } elseif ($annot instanceof ODM\ChangeTrackingPolicy) { |
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116 | 57 | $class->setChangeTrackingPolicy(constant(MappingClassMetadata::class . '::CHANGETRACKING_'.$annot->value)); |
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117 | 317 | } elseif ($annot instanceof ODM\DefaultDiscriminatorValue) { |
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118 | 57 | $class->setDefaultDiscriminatorValue($annot->value); |
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119 | } |
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120 | |||
121 | } |
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122 | |||
123 | 903 | if ( ! $documentAnnots) { |
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124 | 3 | throw MappingException::classIsNotAValidDocument($className); |
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125 | } |
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126 | |||
127 | // find the winning document annotation |
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128 | 901 | ksort($documentAnnots); |
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129 | 901 | $documentAnnot = reset($documentAnnots); |
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130 | |||
131 | 901 | if ($documentAnnot instanceof ODM\MappedSuperclass) { |
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132 | 302 | $class->isMappedSuperclass = true; |
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133 | 900 | } elseif ($documentAnnot instanceof ODM\EmbeddedDocument) { |
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134 | 298 | $class->isEmbeddedDocument = true; |
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135 | 893 | } elseif ($documentAnnot instanceof ODM\QueryResultDocument) { |
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136 | 52 | $class->isQueryResultDocument = true; |
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137 | } |
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138 | 901 | if (isset($documentAnnot->db)) { |
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139 | 1 | $class->setDatabase($documentAnnot->db); |
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140 | } |
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141 | 901 | if (isset($documentAnnot->collection)) { |
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142 | 351 | $class->setCollection($documentAnnot->collection); |
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143 | } |
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144 | 901 | if (isset($documentAnnot->repositoryClass)) { |
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145 | 69 | $class->setCustomRepositoryClass($documentAnnot->repositoryClass); |
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146 | } |
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147 | 901 | if (isset($documentAnnot->writeConcern)) { |
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148 | 11 | $class->setWriteConcern($documentAnnot->writeConcern); |
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149 | } |
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150 | 901 | if (isset($documentAnnot->indexes)) { |
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151 | 900 | foreach ($documentAnnot->indexes as $index) { |
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152 | $this->addIndex($class, $index); |
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153 | } |
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154 | } |
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155 | 901 | if (isset($documentAnnot->requireIndexes)) { |
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156 | 893 | $class->setRequireIndexes($documentAnnot->requireIndexes); |
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157 | } |
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158 | 901 | if (isset($documentAnnot->slaveOkay)) { |
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159 | 1 | $class->setSlaveOkay($documentAnnot->slaveOkay); |
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160 | } |
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161 | |||
162 | 901 | foreach ($reflClass->getProperties() as $property) { |
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163 | 900 | if (($class->isMappedSuperclass && ! $property->isPrivate()) |
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164 | || |
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165 | 899 | ($class->isInheritedField($property->name) && $property->getDeclaringClass()->name !== $class->name)) { |
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166 | 347 | continue; |
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167 | } |
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168 | |||
169 | 899 | $indexes = array(); |
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170 | 899 | $mapping = array('fieldName' => $property->getName()); |
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171 | 899 | $fieldAnnot = null; |
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172 | |||
173 | 899 | foreach ($this->reader->getPropertyAnnotations($property) as $annot) { |
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174 | 899 | if ($annot instanceof ODM\AbstractField) { |
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175 | 899 | $fieldAnnot = $annot; |
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176 | 899 | if ($annot->isDeprecated()) { |
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177 | @trigger_error($annot->getDeprecationMessage(), E_USER_DEPRECATED); |
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178 | } |
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179 | } |
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180 | 899 | if ($annot instanceof ODM\AbstractIndex) { |
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181 | 198 | $indexes[] = $annot; |
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182 | } |
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183 | 899 | if ($annot instanceof ODM\Indexes) { |
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184 | foreach (is_array($annot->value) ? $annot->value : array($annot->value) as $index) { |
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185 | $indexes[] = $index; |
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186 | } |
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187 | 899 | } elseif ($annot instanceof ODM\AlsoLoad) { |
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188 | 15 | $mapping['alsoLoadFields'] = (array) $annot->value; |
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189 | 899 | } elseif ($annot instanceof ODM\Version) { |
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190 | 97 | $mapping['version'] = true; |
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191 | 899 | } elseif ($annot instanceof ODM\Lock) { |
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192 | 24 | $mapping['lock'] = true; |
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193 | } |
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194 | } |
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195 | |||
196 | 899 | if ($fieldAnnot) { |
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197 | 899 | $mapping = array_replace($mapping, (array) $fieldAnnot); |
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198 | 899 | $class->mapField($mapping); |
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199 | } |
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200 | |||
201 | 899 | if ($indexes) { |
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202 | 198 | foreach ($indexes as $index) { |
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203 | 198 | $name = isset($mapping['name']) ? $mapping['name'] : $mapping['fieldName']; |
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204 | 198 | $keys = array($name => $index->order ?: 'asc'); |
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205 | 198 | $this->addIndex($class, $index, $keys); |
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206 | } |
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207 | } |
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208 | } |
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209 | |||
210 | // Set shard key after all fields to ensure we mapped all its keys |
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211 | 899 | if (isset($classAnnotations['Doctrine\ODM\MongoDB\Mapping\Annotations\ShardKey'])) { |
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212 | 62 | $this->setShardKey($class, $classAnnotations['Doctrine\ODM\MongoDB\Mapping\Annotations\ShardKey']); |
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213 | } |
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214 | |||
215 | /** @var $method \ReflectionMethod */ |
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216 | 898 | foreach ($reflClass->getMethods(\ReflectionMethod::IS_PUBLIC) as $method) { |
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217 | /* Filter for the declaring class only. Callbacks from parent |
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218 | * classes will already be registered. |
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219 | */ |
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220 | 634 | if ($method->getDeclaringClass()->name !== $reflClass->name) { |
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221 | 314 | continue; |
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222 | } |
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223 | |||
224 | 634 | foreach ($this->reader->getMethodAnnotations($method) as $annot) { |
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225 | 307 | if ($annot instanceof ODM\AlsoLoad) { |
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226 | 13 | $class->registerAlsoLoadMethod($method->getName(), $annot->value); |
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227 | } |
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228 | |||
229 | 307 | if ( ! isset($classAnnotations[ODM\HasLifecycleCallbacks::class])) { |
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230 | 72 | continue; |
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231 | } |
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232 | |||
233 | 288 | if ($annot instanceof ODM\PrePersist) { |
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234 | 267 | $class->addLifecycleCallback($method->getName(), Events::prePersist); |
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235 | 86 | } elseif ($annot instanceof ODM\PostPersist) { |
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236 | 11 | $class->addLifecycleCallback($method->getName(), Events::postPersist); |
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237 | 85 | } elseif ($annot instanceof ODM\PreUpdate) { |
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238 | 15 | $class->addLifecycleCallback($method->getName(), Events::preUpdate); |
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239 | 80 | } elseif ($annot instanceof ODM\PostUpdate) { |
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240 | 67 | $class->addLifecycleCallback($method->getName(), Events::postUpdate); |
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241 | 74 | } elseif ($annot instanceof ODM\PreRemove) { |
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242 | 72 | $class->addLifecycleCallback($method->getName(), Events::preRemove); |
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243 | 74 | } elseif ($annot instanceof ODM\PostRemove) { |
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244 | 70 | $class->addLifecycleCallback($method->getName(), Events::postRemove); |
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245 | 74 | } elseif ($annot instanceof ODM\PreLoad) { |
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246 | 71 | $class->addLifecycleCallback($method->getName(), Events::preLoad); |
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247 | 73 | } elseif ($annot instanceof ODM\PostLoad) { |
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248 | 72 | $class->addLifecycleCallback($method->getName(), Events::postLoad); |
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249 | 11 | } elseif ($annot instanceof ODM\PreFlush) { |
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250 | 634 | $class->addLifecycleCallback($method->getName(), Events::preFlush); |
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251 | } |
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252 | } |
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253 | } |
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254 | 898 | } |
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255 | |||
256 | 222 | private function addIndex(ClassMetadataInfo $class, $index, array $keys = array()) |
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272 | |||
273 | /** |
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274 | * @param ClassMetadataInfo $class |
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275 | * @param ODM\ShardKey $shardKey |
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276 | * |
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277 | * @throws MappingException |
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278 | */ |
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279 | 62 | private function setShardKey(ClassMetadataInfo $class, ODM\ShardKey $shardKey) |
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291 | |||
292 | /** |
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293 | * Factory method for the Annotation Driver |
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294 | * |
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295 | * @param array|string $paths |
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296 | * @param Reader $reader |
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297 | * @return AnnotationDriver |
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298 | */ |
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299 | 1139 | public static function create($paths = array(), Reader $reader = null) |
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306 | } |
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307 |
If you suppress an error, we recommend checking for the error condition explicitly: