Hibernate多级事务
我有一些休眠代码，我希望我的代码在 1 个事务中运行 让我用代码解释
public void changeBranch(Branch branch) throws DatabaseException {
//some code
humanDao.update(he);
superBranchUsername = branch.getFatherUsername();
int superBranchId = branchDao.getBranchIdByUserName(superBranchUsername);
BranchEntity superBranch = branchDao.load(superBranchId);
BranchEntity be = new BranchEntity();
setBranchEntity(be, he, pkId, bname, confirmed, level, studentCount, uname, superBranch);
branchDao.update(be); // update kardane jadvale Branch va Set kardane Human motenazer be on
//some code
}
一下 humanDao.update(he); 和 branchDao.update(be); 在 My GenericDAO 的事务句柄中运行， humanDao 和branchDao 都是从它继承的。 但我希望这段代码（上面写的）也能在事务中运行！ 我怎样才能进入 Hibernate 来做到这一点？
I have some hibernate code and I want my code run in 1 transaction
let me explain in code
public void changeBranch(Branch branch) throws DatabaseException {
//some code
humanDao.update(he);
superBranchUsername = branch.getFatherUsername();
int superBranchId = branchDao.getBranchIdByUserName(superBranchUsername);
BranchEntity superBranch = branchDao.load(superBranchId);
BranchEntity be = new BranchEntity();
setBranchEntity(be, he, pkId, bname, confirmed, level, studentCount, uname, superBranch);
branchDao.update(be); // update kardane jadvale Branch va Set kardane Human motenazer be on
//some code
}
Both humanDao.update(he); and branchDao.update(be); run in transaction handle by My GenericDAO that humanDao and branchDao are inherited from it.
but I want this block of code (wrote above) to also run in a transaction!! How can I get to Hibernate to do this?
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（3）
DAO 不应该处理事务，其原因正是您所发现的：它们无法知道它们何时属于较大事务的一部分。
如果您使用 Spring 声明式事务，您将拥有一个服务层，可以为两者创建事务上下文DAO 并处理一切。 我建议做类似的事情。
更新：我添加了一个到 Spring 的链接。
DAOs should not handle transactions for exactly the reason you've discovered: they can't know when they're part of a larger transaction.
If you were using Spring declarative transactions, you'd have a service layer that would create the transaction context for both DAOs and deal with everything. I would recommend doing something like that.
UPDATE: I added a link to Spring.
请参阅：第 11 章. 事务和并发
Please see: Chapter 11. Transactions and Concurrency
我发现如果我在
changeBranch(Branchbranch)中创建新会话并将此会话作为参数传递给我的 DAO，我应该如何修复它，我的问题就解决了I find how should I fix it if I new session in
changeBranch(Branch branch)and pass this session as a parameter to my DAO my problem solved