[fw-general] catching exception of db connection error

[scs]

Hello,
How can I catch the exception and print an error message to visitiors
when there is a database connection error?
DB connection params are defined in the application.ini. and db
resource is initiated in bootstrap file.

something like this? :

//function initDatabase () {
try {
        $this->bootstrap('db');
        $db = $this->getResource('db');
        Zend_Registry::set('db', $db);

} catch (Exception $e) {
        echo 'db error '.$e->getMessage();
        exit; // I have to put exit here in order to prevent other init
functions running?
}

Also,
I have to put exit(); in catch part in order to prevent the following
init functions run. Is this the correct way?

Thanks
scs