setNext example

$now = new Zend_Date();
        $now = $now->getTimestamp();
        $interval = $job->getInterval();
        $next = $job->getNext()->getTimestamp();
        if ($interval > 0) {
            do {
                $next += $interval;
            } while ($now >= $next);
        } else {
            $next = $now;
        }
        $job->setNext($next);
        $job->setEnd($now);

        $this->adapter->updateJob($job);
    }
}

public function setOptions(array $options)
    {
        foreach ($options as $fieldName => $value) {
            switch ($fieldName) {
                case 'id':
                    $this->setId($value);
                    break;
                case 'interval':
                    $this->setInterval($value);
                    break;
                case 'next':
                    $this->setNext($value);
                    break;
                case 'start':
                    $this->setStart($value);
                    break;
                case 'end':
                    $this->setEnd($value);
                    break;
                case 'active':
                    $this->setActive($value);
                    break;
                case 'disable_on_error':