hasProperty() public method

If the node has a content object attached, the property will be checked there.
public hasProperty ( string $propertyName ) : boolean
$propertyName string Name of the property to test for
return boolean
 /**
  * Sets the best possible uriPathSegment for the given Node.
  * Will use an already set uriPathSegment or alternatively the node name as base,
  * then checks if the uriPathSegment already exists on the same level and appends a counter until a unique path segment was found.
  *
  * @param NodeInterface $node
  * @return void
  */
 public static function setUniqueUriPathSegment(NodeInterface $node)
 {
     if ($node->getNodeType()->isOfType('Neos.Neos:Document')) {
         $q = new FlowQuery(array($node));
         $q = $q->context(array('invisibleContentShown' => true, 'removedContentShown' => true, 'inaccessibleContentShown' => true));
         $possibleUriPathSegment = $initialUriPathSegment = !$node->hasProperty('uriPathSegment') ? $node->getName() : $node->getProperty('uriPathSegment');
         $i = 1;
         while ($q->siblings('[instanceof Neos.Neos:Document][uriPathSegment="' . $possibleUriPathSegment . '"]')->count() > 0) {
             $possibleUriPathSegment = $initialUriPathSegment . '-' . $i++;
         }
         $node->setProperty('uriPathSegment', $possibleUriPathSegment);
     }
 }
 /**
  * Renders a request path based on the "uriPathSegment" properties of the nodes leading to the given node.
  *
  * @param NodeInterface $node The node where the generated path should lead to
  * @return string A relative request path
  * @throws Exception\MissingNodePropertyException if the given node doesn't have a "uriPathSegment" property set
  */
 protected function getRequestPathByNode(NodeInterface $node)
 {
     if ($node->getParentPath() === SiteService::SITES_ROOT_PATH) {
         return '';
     }
     $requestPathSegments = [];
     while ($node instanceof NodeInterface && $node->getParentPath() !== SiteService::SITES_ROOT_PATH) {
         if (!$node->hasProperty('uriPathSegment')) {
             throw new Exception\MissingNodePropertyException(sprintf('Missing "uriPathSegment" property for node "%s". Nodes can be migrated with the "flow node:repair" command.', $node->getPath()), 1415020326);
         }
         $pathSegment = $node->getProperty('uriPathSegment');
         $requestPathSegments[] = $pathSegment;
         $node = $node->getParent();
     }
     return implode('/', array_reverse($requestPathSegments));
 }