|  | @@ 286-297 (lines=12) @@ | 
                                                            
                                    | 283 |  |     /** | 
                                                            
                                    | 284 |  |      * {@inheritdoc} | 
                                                            
                                    | 285 |  |      */ | 
                                                            
                                    | 286 |  |     public function containsKey($key) | 
                                                            
                                    | 287 |  |     { | 
                                                            
                                    | 288 |  |         if (!$this->initialized && $this->association['fetch'] === ApiMetadata::FETCH_EXTRA_LAZY | 
                                                            
                                    | 289 |  |             && isset($this->association['indexBy']) | 
                                                            
                                    | 290 |  |         ) { | 
                                                            
                                    | 291 |  |             $persister = $this->manager->getUnitOfWork()->getCollectionPersister($this->association); | 
                                                            
                                    | 292 |  |  | 
                                                            
                                    | 293 |  |             return $this->collection->containsKey($key) || $persister->containsKey($this, $key); | 
                                                            
                                    | 294 |  |         } | 
                                                            
                                    | 295 |  |  | 
                                                            
                                    | 296 |  |         return parent::containsKey($key); | 
                                                            
                                    | 297 |  |     } | 
                                                            
                                    | 298 |  |  | 
                                                            
                                    | 299 |  |     /** | 
                                                            
                                    | 300 |  |      * {@inheritdoc} | 
                                                                                
                                |  | @@ 302-311 (lines=10) @@ | 
                                                            
                                    | 299 |  |     /** | 
                                                            
                                    | 300 |  |      * {@inheritdoc} | 
                                                            
                                    | 301 |  |      */ | 
                                                            
                                    | 302 |  |     public function contains($element) | 
                                                            
                                    | 303 |  |     { | 
                                                            
                                    | 304 |  |         if (!$this->initialized && $this->association['fetch'] === ApiMetadata::FETCH_EXTRA_LAZY) { | 
                                                            
                                    | 305 |  |             $persister = $this->manager->getUnitOfWork()->getCollectionPersister($this->association); | 
                                                            
                                    | 306 |  |  | 
                                                            
                                    | 307 |  |             return $this->collection->contains($element) || $persister->contains($this, $element); | 
                                                            
                                    | 308 |  |         } | 
                                                            
                                    | 309 |  |  | 
                                                            
                                    | 310 |  |         return parent::contains($element); | 
                                                            
                                    | 311 |  |     } | 
                                                            
                                    | 312 |  |  | 
                                                            
                                    | 313 |  |     /** | 
                                                            
                                    | 314 |  |      * {@inheritdoc} |