public function changeDuplicateFlag(EdkMessage $item)
{
$this->transaction->requestTransaction();
try {
if ($item->getDuplicate()) {
$item->setDuplicate(false);
} else {
$item->setDuplicate(true);
}
$item->changeState($this->conn);
} catch (Exception $ex) {
$this->transaction->requestRollback();
throw $ex;
}
}