EntityTransaction (Java EE 5 SDK)

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摘要: 嵌套 | 字段 | 构造器 | 方法	详细信息: 字段 | 构造器 | 方法

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javax.persistence Interface EntityTransaction

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public interface EntityTransaction

The EntityTransaction interface is used to control resource transactions on resource-local entity managers. The EntityManager.getTransaction() method returns the EntityTransaction interface.

从以下版本开始:

Java Persistence 1.0

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方法摘要
void	begin()           Start the resource transaction.
void	commit()           Commit the current transaction, writing any unflushed changes to the database.
boolean	getRollbackOnly()           Determine whether the current transaction has been marked for rollback.
boolean	isActive()           Indicate whether a transaction is in progress.
void	rollback()           Roll back the current transaction
void	setRollbackOnly()           Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

 

方法详细信息

begin

void begin()

Start the resource transaction.

抛出异常:

IllegalStateException - if isActive() is true.

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commit

void commit()

Commit the current transaction, writing any unflushed changes to the database.

抛出异常:

IllegalStateException - if isActive() is false.

RollbackException - if the commit fails.

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rollback

void rollback()

Roll back the current transaction

抛出异常:

IllegalStateException - if isActive() is false.

PersistenceException - if an unexpected error condition is encountered.

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setRollbackOnly

void setRollbackOnly()

Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

抛出异常:

IllegalStateException - if isActive() is false.

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getRollbackOnly

boolean getRollbackOnly()

Determine whether the current transaction has been marked for rollback.

抛出异常:

IllegalStateException - if isActive() is false.

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isActive

boolean isActive()

Indicate whether a transaction is in progress.

抛出异常:

PersistenceException - if an unexpected error condition is encountered.

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概述  软件包   类  树  已过时  索引  帮助		Java EE 5 SDK 深圳电信培训中心.徐海蛟老师.
上一个类   下一个类	框架    无框架
摘要: 嵌套 | 字段 | 构造器 | 方法	详细信息: 字段 | 构造器 | 方法

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