protected function executeActions($group)
    {
        $executedCount = 0;
        reset($this->actions[$group]);
        while (list($index, $action) = each($this->actions[$group])) {
            if ($this->isActionReadyToExecute($action[0], $action[2])) {
                $executedCount += $this->executeAction($index, $action);
                unset($this->actions[$group][$index]);
            }
        }

        return $executedCount;
    }