GraphAware\Neo4j\OGM\Metadata\ClassMetadata::getLabel PHP Method

    public function getLabel()
    {
        if (!$this->isNodeEntity()) {
            throw new MappingException(sprintf('This class metadata is not for a node entity'));
        }
        return $this->entityAnnotation->label;
    }

 /**
  * @param string $key
  * @param mixed  $value
  *
  * @throws \GraphAware\Neo4j\Client\Exception\Neo4jException
  *
  * @return object[]
  */
 public function findBy($key, $value, $isId = false)
 {
     $label = $this->classMetadata->getLabel();
     $idId = $isId ? 'id(n)' : sprintf('n.%s', $key);
     $query = sprintf('MATCH (n:%s) WHERE %s = {%s}', $label, $idId, $key);
     /** @var \GraphAware\Neo4j\OGM\Metadata\RelationshipMetadata[] $associations */
     $associations = $this->classMetadata->getNonLazyRelationships();
     $assocReturns = [];
     foreach ($associations as $identifier => $association) {
         $type = $association->isRelationshipEntity() ? $this->entityManager->getRelationshipEntityMetadata($association->getRelationshipEntityClass())->getType() : $association->getType();
         switch ($association->getDirection()) {
             case 'INCOMING':
                 $relStr = '<-[rel_%s:%s]-';
                 break;
             case 'OUTGOING':
                 $relStr = '-[rel_%s:%s]->';
                 break;
             default:
                 $relStr = '-[rel_%s:%s]-';
                 break;
         }
         $relationshipIdentifier = sprintf('%s_%s', strtolower($association->getPropertyName()), strtolower($type));
         $relQueryPart = sprintf($relStr, $relationshipIdentifier, $type);
         $query .= PHP_EOL;
         $query .= 'OPTIONAL MATCH (n)' . $relQueryPart . '(' . $association->getPropertyName() . ')';
         $query .= ' WITH n, ';
         $query .= implode(', ', $assocReturns);
         if (!empty($assocReturns)) {
             $query .= ', ';
         }
         $relid = 'rel_' . $relationshipIdentifier;
         if ($association->hasOrderBy()) {
             $orderProperty = $association->getPropertyName() . '.' . $association->getOrderByPropery();
             if ($association->isRelationshipEntity()) {
                 $reMetadata = $this->entityManager->getRelationshipEntityMetadata($association->getRelationshipEntityClass());
                 $split = explode('.', $association->getOrderByPropery());
                 if (count($split) > 1) {
                     $reName = $split[0];
                     $v = $split[1];
                     if ($reMetadata->getStartNodePropertyName() === $reName || $reMetadata->getEndNodePropertyName() === $reName) {
                         $orderProperty = $association->getPropertyName() . '.' . $v;
                     }
                 } else {
                     if (null !== $reMetadata->getPropertyMetadata($association->getOrderByPropery())) {
                         $orderProperty = $relid . '.' . $association->getOrderByPropery();
                     }
                 }
             }
             $query .= $relid . ', ' . $association->getPropertyName() . ' ORDER BY ' . $orderProperty . ' ' . $association->getOrder();
             $query .= PHP_EOL;
             $query .= ' WITH n, ';
             $query .= implode(', ', $assocReturns);
             if (!empty($assocReturns)) {
                 $query .= ', ';
             }
         }
         if ($association->isCollection() || $association->isRelationshipEntity()) {
             $query .= sprintf(' CASE count(%s) WHEN 0 THEN [] ELSE collect({start:startNode(%s), end:endNode(%s), rel:%s}) END as %s', $relid, $relid, $relid, $relid, $relid);
             $assocReturns[] = $relid;
         } else {
             $query .= $association->getPropertyName();
             $assocReturns[] = $association->getPropertyName();
         }
     }
     $query .= PHP_EOL;
     $query .= 'RETURN n';
     if (!empty($assocReturns)) {
         $query .= ', ' . implode(', ', $assocReturns);
     }
     //print_r($query);
     $parameters = [$key => $value];
     $result = $this->entityManager->getDatabaseDriver()->run($query, $parameters);
     return $this->hydrateResultSet($result);
 }