function __construct($write_log = false, $write_hdd_session = false, $write_hdd_sql = false, $message = null)
 {
     parent::__construct($write_log, $write_hdd_session, $write_hdd_sql, $message, null);
 }
 function __construct($message = null)
 {
     parent::__construct(true, true, true, $message, null);
 }
 function __construct()
 {
     parent::__construct(true, false, false, "Sample ID is missing", null);
 }
 function __construct()
 {
     parent::__construct(true, false, false, "Sample not found", null);
 }
 function __construct()
 {
     parent::__construct(true, false, false, "Sample No Instance", null);
 }