eZ\Publish\Core\Persistence\Legacy\Content\Language\Cache::clearCache PHP Method

    public function clearCache()
    {
        $this->mapByLocale = $this->mapById = array();
    }

 /**
  * Clear internal cache.
  */
 public function clearCache()
 {
     $this->isCacheInitialized = false;
     $this->languageCache->clearCache();
 }