Neos\ContentRepository\Domain\Model\NodeInterface::getDepth PHP Метод

    public function getDepth();

 /**
  * Register a node change for a later cache flush. This method is triggered by a signal sent via ContentRepository's Node
  * model or the Neos Publishing Service.
  *
  * @param NodeInterface $node The node which has changed in some way
  * @return void
  */
 public function registerNodeChange(NodeInterface $node)
 {
     $this->tagsToFlush[ContentCache::TAG_EVERYTHING] = 'which were tagged with "Everything".';
     $nodeTypesToFlush = $this->getAllImplementedNodeTypes($node->getNodeType());
     foreach ($nodeTypesToFlush as $nodeType) {
         $nodeTypeName = $nodeType->getName();
         $this->tagsToFlush['NodeType_' . $nodeTypeName] = sprintf('which were tagged with "NodeType_%s" because node "%s" has changed and was of type "%s".', $nodeTypeName, $node->getPath(), $node->getNodeType()->getName());
     }
     $this->tagsToFlush['Node_' . $node->getIdentifier()] = sprintf('which were tagged with "Node_%s" because node "%s" has changed.', $node->getIdentifier(), $node->getPath());
     $originalNode = $node;
     while ($node->getDepth() > 1) {
         $node = $node->getParent();
         // Workaround for issue #56566 in Neos.ContentRepository
         if ($node === null) {
             break;
         }
         $tagName = 'DescendantOf_' . $node->getIdentifier();
         $this->tagsToFlush[$tagName] = sprintf('which were tagged with "%s" because node "%s" has changed.', $tagName, $originalNode->getPath());
     }
 }