Prado\Web\UI\TCachePageStatePersister::getCache PHP Метод

    public function getCache()
    {
        if ($this->_cache === null) {
            if ($this->_cacheModuleID !== '') {
                $cache = Prado::getApplication()->getModule($this->_cacheModuleID);
            } else {
                $cache = Prado::getApplication()->getCache();
            }
            if ($cache === null || !$cache instanceof ICache) {
                if ($this->_cacheModuleID !== '') {
                    throw new TConfigurationException('cachepagestatepersister_cachemoduleid_invalid', $this->_cacheModuleID);
                } else {
                    throw new TConfigurationException('cachepagestatepersister_cache_required');
                }
            }
            $this->_cache = $cache;
        }
        return $this->_cache;
    }