org.springframework.orm.jpa.vendor

Class OpenJpaDialect.OpenJpaTransactionData

java.lang.Object

org.springframework.orm.jpa.vendor.OpenJpaDialect.OpenJpaTransactionData

All Implemented Interfaces:

SavepointManager

Enclosing class:

OpenJpaDialect

private static class OpenJpaDialect.OpenJpaTransactionData
extends java.lang.Object
implements SavepointManager

Transaction data Object exposed from beginTransaction, implementing the SavepointManager interface.

Field Summary

Fields

Modifier and Type	Field and Description
private OpenJPAEntityManager	entityManager
private int	savepointCounter

Constructor Summary

Constructors

Constructor and Description
OpenJpaTransactionData(OpenJPAEntityManager entityManager)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	createSavepoint() Create a new savepoint.
void	releaseSavepoint(java.lang.Object savepoint) Explicitly release the given savepoint.
void	rollbackToSavepoint(java.lang.Object savepoint) Roll back to the given savepoint.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

entityManager

private final OpenJPAEntityManager entityManager

savepointCounter

private int savepointCounter

Constructor Detail

OpenJpaTransactionData

public OpenJpaTransactionData(OpenJPAEntityManager entityManager)

Method Detail

createSavepoint

public java.lang.Object createSavepoint()
                                 throws TransactionException

Description copied from interface: SavepointManager

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.

Specified by:

createSavepoint in interface SavepointManager

Returns:

a savepoint object, to be passed into SavepointManager.rollbackToSavepoint(java.lang.Object) or SavepointManager.releaseSavepoint(java.lang.Object)

Throws:

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

See Also:

Connection.setSavepoint()

rollbackToSavepoint

public void rollbackToSavepoint(java.lang.Object savepoint)
                         throws TransactionException

Description copied from interface: SavepointManager

Roll back to the given savepoint.

The savepoint will not be automatically released afterwards. You may explicitly call SavepointManager.releaseSavepoint(Object) or rely on automatic release on transaction completion.

Specified by:

rollbackToSavepoint in interface SavepointManager

Parameters:

savepoint - the savepoint to roll back to

Throws:

NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints

TransactionException - if the rollback failed

See Also:

Connection.rollback(java.sql.Savepoint)

releaseSavepoint

public void releaseSavepoint(java.lang.Object savepoint)
                      throws TransactionException

Description copied from interface: SavepointManager

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.

Specified by:

releaseSavepoint in interface SavepointManager

Parameters:

savepoint - the savepoint to release

Throws:

NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints

TransactionException - if the release failed

See Also:

Connection.releaseSavepoint(java.sql.Savepoint)