所有已知子接口:
TransactionStatus
所有已知实现类:
AbstractTransactionStatus, DefaultTransactionStatus, JdbcTransactionObjectSupport, SimpleTransactionStatus
```
public interface SavepointManager
```
Interface that specifies an API to programmatically manage transaction savepoints in a generic fashion. Extended by TransactionStatus to expose savepoint management functionality for a specific transaction.
Note that savepoints can only work within an active transaction. Just use this programmatic savepoint handling for advanced needs; else, a subtransaction with PROPAGATION_NESTED is preferable.
This interface is inspired by JDBC 3.0's Savepoint mechanism but is independent from any specific persistence technology.
从以下版本开始:
1.1
作者:
Juergen Hoeller
另请参阅:
TransactionStatus, TransactionDefinition.PROPAGATION_NESTED, Savepoint

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`Object`	`createSavepoint()`	Create a new savepoint.
`void`	`releaseSavepoint(Object savepoint)`	Explicitly release the given savepoint.
`void`	`rollbackToSavepoint(Object savepoint)`	Roll back to the given savepoint.

- 方法详细资料
  - createSavepoint
```
Object createSavepoint()
                throws TransactionException
```
    Create a new savepoint. You can roll back to a specific savepoint via rollbackToSavepoint, and explicitly release a savepoint that you don't need anymore via releaseSavepoint.
    Note that most transaction managers will automatically release savepoints at transaction completion.
    返回:
    a savepoint object, to be passed into rollbackToSavepoint(java.lang.Object) or releaseSavepoint(java.lang.Object)
    抛出:
    NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints
    TransactionException - if the savepoint could not be created, for example because the transaction is not in an appropriate state
    另请参阅:
    Connection.setSavepoint()
  - rollbackToSavepoint
```
void rollbackToSavepoint(Object savepoint)
                  throws TransactionException
```
    Roll back to the given savepoint.
    The savepoint will not be automatically released afterwards. You may explicitly call releaseSavepoint(Object) or rely on automatic release on transaction completion.
    参数:
    savepoint - the savepoint to roll back to
    抛出:
    NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints
    TransactionException - if the rollback failed
    另请参阅:
    Connection.rollback(java.sql.Savepoint)
  - releaseSavepoint
```
void releaseSavepoint(Object savepoint)
               throws TransactionException
```
    Explicitly release the given savepoint.
    Note that most transaction managers will automatically release savepoints on transaction completion.
    Implementations should fail as silently as possible if proper resource cleanup will eventually happen at transaction completion.
    参数:
    savepoint - the savepoint to release
    抛出:
    NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints
    TransactionException - if the release failed
    另请参阅:
    Connection.releaseSavepoint(java.sql.Savepoint)

接口 SavepointManager

方法概要

方法详细资料

createSavepoint

rollbackToSavepoint

releaseSavepoint