If a problem occurs, we will call the rollback method on the transaction object.

如果出现了任何问题，我们将调用事务对象中的rollback方法。

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When session is ready to initiate a call or transaction.

当会话已准备好发起呼叫或交易。

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When session is ready to initiate a call or transaction.

当会话已准备好发起呼叫或交易。

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