getChangedCurrencies example

public function invalidateIndexedLandingPages(LandingPageIndexerEvent $event): void
    {
        // invalidates the landing page route, if the corresponding landing page changed         /** @var list<string> $ids */
        $ids = array_map([CachedLandingPageRoute::class, 'buildName'], $event->getIds());
        $this->cacheInvalidator->invalidate($ids);
    }

    public function invalidateCurrencyRoute(EntityWrittenContainerEvent $event): void
    {
        // invalidates the currency route when a currency changed or an assignment between the sales channel and currency changed         $this->cacheInvalidator->invalidate([...$this->getChangedCurrencyAssignments($event), ...$this->getChangedCurrencies($event)]);
    }

    public function invalidateLanguageRoute(EntityWrittenContainerEvent $event): void
    {
        // invalidates the language route when a language changed or an assignment between the sales channel and language changed         $this->cacheInvalidator->invalidate([...$this->getChangedLanguageAssignments($event), ...$this->getChangedLanguages($event)]);
    }

    public function invalidateCountryRoute(EntityWrittenContainerEvent $event): void
    {
        // invalidates the country route when a country changed or an assignment between the sales channel and country changed