Having database access in 3rd party lib

Hello, I have a 3trd party lib.
Now I want to use database in that.
How can I do this job?

Look here: http://www.codeigniter.com/userguide3/ge...ur-library

Soo.. for example:

PHP Code:

class extLib3 {
  
    private $ci;

    public function __construct() 
    {
        //Getting CI instance (the =& is important and not a typo, because you want the original, not a copy (assigning by reference))
        $this->ci =& get_instance();

        //Load database
        $this->ci->load->database();
    }
} 


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