如何在休眠时检查会话是否已经打开了事务？

Question

我的要求是我想执行数据库操作.所以,我在做......

Public boolean myFunction(){
    Session session = sessionFactory.getCurrentSession();
    if(session!=null){
        if (tx != null) {
            Transaction tx = session.beginTransaction();
            //Perform database operation...
            tx.rollback();
            if (session.isOpen()) {
            session.close();
            }
            tx = null;
            session = null;
        }
    }else{
        return;
    }
}

当我的会话不包含任何先前未提及/展开的tranasction时,这很有效.

现在,问题Sceanario就在这里......

Sceanario:

有一个服务...调用myFunction(),该服务在会话中已有一个活动事务.

问题:当myfunction()执行tx.rollback()时...它还回滚了父进程的事务.

1.) Why this happen???
2.) Is there nay way to determine... weather hibernate session contains any previous open/uncommited/active/unrolledback/continue transaction?

我试过了...

Public boolean myFunction(){
    Session session = sessionFactory.getCurrentSession();
    if(session!=null){
        if (tx != null) {
            boolean isAlreadyTransactionStarted = sessionFactory.getCurrentSession().getTransaction().isActive();
            if(isAlreadyTransactionStarted){
                Transaction tx = sessionFactory.getCurrentSession().getTransaction();
            }else{
                Transaction tx = session.beginTransaction();
            }
            //Perform database operation...
            if(isAlreadyTransactionStarted){
                tx.rollback();
                if (session.isOpen()) {
                session.close();
                }
                tx = null;
                session = null;
            }else{
                //Nothing to do...
            }
        }
    }else{
        return;
    }
}

但在这种情况下

1.) When parent call contains any active transactions then isAlreadyTransactionStarted becomes true.

2.) But in the case call which does not contains any transaction, also isAlreadyTransactionStarted becomes true.

我的问题仍然是一样的:

有没有办法确定...天气休眠会话包含任何以前的开放/未通信/活动/解压缩/继续交易？

Answer 1

你可以使用 Session.isDirty() 吗？