Doctrine\ODM\MongoDB\PersistentCollection::setInitialized PHP Method

    public function setInitialized($bool)
    {
        $this->initialized = $bool;
    }

 /**
  * Hydrate array of MongoDB document data into the given document object
  * based on the mapping information provided in the ClassMetadata instance.
  *
  * @param ClassMetadata $metadata  The ClassMetadata instance for mapping information.
  * @param string $document  The document object to hydrate the data into.
  * @param array $data The array of document data.
  * @return array $values The array of hydrated values.
  */
 public function hydrate(ClassMetadata $metadata, $document, $data)
 {
     $values = array();
     foreach ($metadata->fieldMappings as $mapping) {
         $rawValue = $this->_getFieldValue($mapping, $document, $data);
         if (!isset($rawValue)) {
             continue;
         }
         if (isset($mapping['embedded'])) {
             $embeddedMetadata = $this->_dm->getClassMetadata($mapping['targetDocument']);
             $embeddedDocument = $embeddedMetadata->newInstance();
             if ($mapping['type'] === 'many') {
                 $documents = new ArrayCollection();
                 foreach ($rawValue as $docArray) {
                     $doc = clone $embeddedDocument;
                     $this->hydrate($embeddedMetadata, $doc, $docArray);
                     $documents->add($doc);
                 }
                 $metadata->setFieldValue($document, $mapping['fieldName'], $documents);
                 $value = $documents;
             } else {
                 $value = clone $embeddedDocument;
                 $this->hydrate($embeddedMetadata, $value, $rawValue);
                 $metadata->setFieldValue($document, $mapping['fieldName'], $value);
             }
         } elseif (isset($mapping['reference'])) {
             $targetMetadata = $this->_dm->getClassMetadata($mapping['targetDocument']);
             $targetDocument = $targetMetadata->newInstance();
             if ($mapping['type'] === 'one' && isset($rawValue[$this->_cmd . 'id'])) {
                 $id = $targetMetadata->getPHPIdentifierValue($rawValue[$this->_cmd . 'id']);
                 $proxy = $this->_dm->getReference($mapping['targetDocument'], $id);
                 $metadata->setFieldValue($document, $mapping['fieldName'], $proxy);
             } elseif ($mapping['type'] === 'many' && (is_array($rawValue) || $rawValue instanceof Collection)) {
                 $documents = new PersistentCollection($this->_dm, $targetMetadata, new ArrayCollection());
                 $documents->setInitialized(false);
                 foreach ($rawValue as $v) {
                     $id = $targetMetadata->getPHPIdentifierValue($v[$this->_cmd . 'id']);
                     $proxy = $this->_dm->getReference($mapping['targetDocument'], $id);
                     $documents->add($proxy);
                 }
                 $metadata->setFieldValue($document, $mapping['fieldName'], $documents);
             }
         } else {
             $value = Type::getType($mapping['type'])->convertToPHPValue($rawValue);
             $metadata->setFieldValue($document, $mapping['fieldName'], $value);
         }
         if (isset($value)) {
             $values[$mapping['fieldName']] = $value;
         }
     }
     if (isset($data['_id'])) {
         $metadata->setIdentifierValue($document, $data['_id']);
     }
     return $values;
 }