/**
     * @param string $script
     */
    protected function addDeleteFromCache(&$script)
    {
        $peerClassName = $this->builder->getStubPeerBuilder()->getClassname();
        $script .= '
/**
 * @return boolean            success or failure
 */
public function deleteFromCache()
{
    return ' . $peerClassName . '::cacheDelete($this->getCacheKey());
}
        ';
    }