code: public function read(ClassMetadata $classMetadata, array &$metatada)
      {
          foreach ($this->drivers as $namespace => $driver) {
              if (strpos($classMetadata->name, $namespace) === 0) {
                  $driver->read($classMetadata, $metatada);
  
                  return;
              }
          }
  
          if (null !== $this->defaultDriver) {
              $this->defaultDriver->read($classMetadata, $metatada);
          }
      }
docs: {@inheritDoc}