或者，我们是否需一种途径、一个特殊的 xml 消息来处理事务管理并通知后台退回到上一个消息？

Or, do we need for example, a programmatic approach, and specific xml messages to handle transaction management and tell the backend to reverse the last message effect?

youdao

正如前面提到的那样，EJB组件控制着对后台数据的访问，并管理着当前事务和数据库的内部锁定。

As mentioned previously, the EJB components control the access to the back-end data and manage the current transactions and database locking internally.

youdao

EJB组件控制着对后台数据的访问，并管理着当前事务以及数据库的内部锁定。

The EJB components control the access to the back-end data and manage the current transactions and database locking internally.

youdao