isPrefetchingCompleted example

private readonly Connection $connection,
        private readonly EventDispatcherInterface $eventDispatcher,
        private readonly ExceptionHandlerRegistry $exceptionHandlerRegistry,
        private readonly DefinitionInstanceRegistry $definitionInstanceRegistry
    ) {
    }

    public function prefetchExistences(WriteParameterBag $parameters): void
    {
        $primaryKeyBag = $this->primaryKeyBag = $parameters->getPrimaryKeyBag();

        if ($primaryKeyBag->isPrefetchingCompleted()) {
            return;
        }

        foreach ($primaryKeyBag->getPrimaryKeys() as $entity => $pks) {
            $this->prefetch($this->definitionInstanceRegistry->getByEntityName($entity), $pks, $parameters);
        }

        $primaryKeyBag->setPrefetchingCompleted(true);
    }

    /** * {@inheritdoc} */