Synchronization (Java EE 5)

事务管理器支持一种同步机制，这种机制允许在事务完成之前和之后通知感兴趣的参与者。使用 registerSynchronization 方法，应用服务器可向当前与目标 Transaction 对象关联的事务注册一个 Synchronization 对象。 英文文档：

The transaction manager supports a synchronization mechanism that allows the interested party to be notified before and after the transaction completes. Using the registerSynchronization method, the application server registers a Synchronization object for the transaction currently associated with the target Transaction object.

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Method Summary
void	afterCompletion(int status)           This method is called by the transaction manager after the transaction is committed or rolled back.
void	beforeCompletion()           The beforeCompletion method is called by the transaction manager prior to the start of the two-phase transaction commit process.

 

Method Detail

public void beforeCompletion()
在启动二阶段事务提交过程之前，事务管理器调用 beforeCompletion 方法。使用要提交的事务的事务上下文执行此调用。

英文文档：

beforeCompletion

void beforeCompletion()

The beforeCompletion method is called by the transaction manager prior to the start of the two-phase transaction commit process. This call is executed with the transaction context of the transaction that is being committed.

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public void afterCompletion(int status)
提交或回滚事务之后，事务管理器调用此方法。

status

事务的完成状态。

英文文档：

afterCompletion

void afterCompletion(int status)

This method is called by the transaction manager after the transaction is committed or rolled back.

Parameters:

status - The status of the transaction completion.

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