Doctrine\ODM\MongoDB\Mapping\ClassMetadata::__wakeup PHP Method

    public function __wakeup()
    {
        // Restore ReflectionClass and properties
        $this->reflClass = new \ReflectionClass($this->name);
        $this->instantiator = $this->instantiator ?: new Instantiator();
        foreach ($this->fieldMappings as $field => $mapping) {
            if (isset($mapping['declared'])) {
                $reflField = new \ReflectionProperty($mapping['declared'], $field);
            } else {
                $reflField = $this->reflClass->getProperty($field);
            }
            $reflField->setAccessible(true);
            $this->reflFields[$field] = $reflField;
        }
    }