DailyCronJob Hook not being called in new addon

[bigideaguy]

I am having an issue where my the hook for the DailyCronJob is not being called. I know cron is running as I get the email daily. It seems like the method is not being called to perform the update but if I call this from the browser it seems to work fine. What am I missing or doing wrong here?

 

class MyAddon_Hooks {

   protected static $instance = NULL;

   public static function get_instance()
   {
       if ( NULL === self::$instance )
           self::$instance = new self;

       return self::$instance;
   }

   function __construct() {
       $files = array("addonfile.php");
       foreach ($files as $f) {
           if (file_exists($f)) {
               include_once($f);
           }
       }
   }

   function update() {
       Anveto::get_instance()->cron();
   }

}

function myaddon_update()
{
   MyAddon_Hooks::get_instance()->update();
}

add_hook("DailyCronJob",1,"myaddon_update");

 

This is the code in my hooks.php file.