eZ\Publish\Core\Persistence\Cache\UrlAliasHandler::listURLAliasesForLocation PHP Method

    public function listURLAliasesForLocation($locationId, $custom = false)
    {
        // Look for location to list of url alias id's cache
        if ($custom) {
            $cache = $this->cache->getItem('urlAlias', 'location', $locationId, 'custom');
        } else {
            $cache = $this->cache->getItem('urlAlias', 'location', $locationId);
        }
        $urlAliasIds = $cache->get();
        if ($cache->isMiss()) {
            $this->logger->logCall(__METHOD__, array('location' => $locationId, 'custom' => $custom));
            $urlAliases = $this->persistenceHandler->urlAliasHandler()->listURLAliasesForLocation($locationId, $custom);
            $urlAliasIds = array();
            foreach ($urlAliases as $urlAlias) {
                $urlAliasIds[] = $urlAlias->id;
            }
            $cache->set($urlAliasIds)->save();
        } else {
            // Reuse loadUrlAlias for the url alias object cache
            $urlAliases = array();
            foreach ($urlAliasIds as $urlAliasId) {
                $urlAliases[] = $this->loadUrlAlias($urlAliasId);
            }
        }
        return $urlAliases;
    }