class TypedDataMetadata

class TypedDataMetadata implements MetadataInterface {
  
  /**
   * The typed data object the metadata is about.
   *
   * @var \Drupal\Core\TypedData\TypedDataInterface
   */
  protected $typedData;
  
  /**
   * Constructs the object.
   *
   * @param \Drupal\Core\TypedData\TypedDataInterface $typed_data
   *   The typed data object the metadata is about.
   */
  public function __construct(TypedDataInterface $typed_data) {
    $this->typedData = $typed_data;
  }
  
  /**
   * {@inheritdoc}
   */
  public function findConstraints($group) : array {
    return $this->getConstraints();
  }
  
  /**
   * {@inheritdoc}
   */
  public function getConstraints() : array {
    return $this->typedData
      ->getConstraints();
  }
  
  /**
   * {@inheritdoc}
   */
  public function getTraversalStrategy() : int {
    return TraversalStrategy::NONE;
  }
  
  /**
   * {@inheritdoc}
   */
  public function getCascadingStrategy() : int {
    // By default, never cascade into validating referenced data structures.
    return CascadingStrategy::NONE;
  }

}