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Java EE 5 SDK 深圳电信培训中心.徐海蛟老师. |
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javax.persistence Interface EntityTransaction
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
| 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- ifisActive()is true.
commit
void commit()
- Commit the current transaction, writing any unflushed
changes to the database.
- 抛出异常:
IllegalStateException- ifisActive()is false.RollbackException- if the commit fails.
rollback
void rollback()
- Roll back the current transaction
- 抛出异常:
IllegalStateException- ifisActive()is false.PersistenceException- if an unexpected error condition is encountered.
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- ifisActive()is false.
getRollbackOnly
boolean getRollbackOnly()
- Determine whether the current transaction has been marked
for rollback.
- 抛出异常:
IllegalStateException- ifisActive()is false.
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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Java EE 5 SDK 深圳电信培训中心.徐海蛟老师. |
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| 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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