/** Sets the default {@link Caller}.
*
* @param string $caller A Caller class name. (Required)
* @access public
*/
public function setDefaultCaller($class)
{
if (get_parent_class($class) == 'Caller') {
self::$default = $class;
} else {
throw new Exception("Class '" . $class . "' does not extend 'Caller'!");
}
}
