private static function validateRequiredData($id, $module, $category)
    {

        if(! is_string($id) || empty($id)) {
            throw new common_exception_InconsistentData('The module needs an id');
        }
        if(! is_string($module) || empty($module)) {
            throw new common_exception_InconsistentData('The module needs a path');
        }
        if(! is_string($category) || empty($category)) {
            throw new common_exception_InconsistentData('The module needs a category');
        }

        return true;
    }