/**
* Constructor.
*
* @param Horde_Kolab_Storage_Driver $driver The decorated driver.
* @param Horde_Support_Timer $timer A stop watch.
* @param mixed $logger The log handler. This instance
* must provide the debug() method.
*/
public function __construct(Horde_Kolab_Storage_Driver $driver, Horde_Support_Timer $timer, $logger)
{
$this->_logger = $logger;
$this->_timer = $timer;
parent::__construct($driver);
}