类 ResourceHolderSynchronization<H extends ResourceHolder,​K>

构造器详细资料

• ResourceHolderSynchronization

  public ResourceHolderSynchronization​(H resourceHolder,
                                       K resourceKey)

  Create a new ResourceHolderSynchronization for the given holder.

  参数:

  resourceHolder - the ResourceHolder to manage

  resourceKey - the key to bind the ResourceHolder for

  另请参阅:

  TransactionSynchronizationManager.bindResource(java.lang.Object, java.lang.Object)

方法详细资料

• suspend

  public void suspend()

  从接口复制的说明: TransactionSynchronization
  Suspend this synchronization. Supposed to unbind resources from TransactionSynchronizationManager if managing any.

  指定者:

  suspend 在接口中 TransactionSynchronization

  另请参阅:

  TransactionSynchronizationManager.unbindResource(java.lang.Object)

• resume

  public void resume()

  从接口复制的说明: TransactionSynchronization
  Resume this synchronization. Supposed to rebind resources to TransactionSynchronizationManager if managing any.

  指定者:

  resume 在接口中 TransactionSynchronization

  另请参阅:

  TransactionSynchronizationManager.bindResource(java.lang.Object, java.lang.Object)

• flush

  public void flush()

  从接口复制的说明: TransactionSynchronization
  Flush the underlying session to the datastore, if applicable: for example, a Hibernate/JPA session.

  指定者:

  flush 在接口中 Flushable

  指定者:

  flush 在接口中 TransactionSynchronization

  另请参阅:

  TransactionStatus.flush()

• beforeCommit

  public void beforeCommit​(boolean readOnly)

  从接口复制的说明: TransactionSynchronization
  Invoked before transaction commit (before "beforeCompletion"). Can e.g. flush transactional O/R Mapping sessions to the database.

  This callback does not mean that the transaction will actually be committed. A rollback decision can still occur after this method has been called. This callback is rather meant to perform work that's only relevant if a commit still has a chance to happen, such as flushing SQL statements to the database.

  Note that exceptions will get propagated to the commit caller and cause a rollback of the transaction.

  指定者:

  beforeCommit 在接口中 TransactionSynchronization

  参数:

  readOnly - whether the transaction is defined as read-only transaction

  另请参阅:

  TransactionSynchronization.beforeCompletion()

• beforeCompletion

  public void beforeCompletion()

  从接口复制的说明: TransactionSynchronization
  Invoked before transaction commit/rollback. Can perform resource cleanup before transaction completion.

  This method will be invoked after beforeCommit, even when beforeCommit threw an exception. This callback allows for closing resources before transaction completion, for any outcome.

  指定者:

  beforeCompletion 在接口中 TransactionSynchronization

  另请参阅:

  TransactionSynchronization.beforeCommit(boolean), TransactionSynchronization.afterCompletion(int)

• afterCommit

  public void afterCommit()

  从接口复制的说明: TransactionSynchronization
  Invoked after transaction commit. Can perform further operations right after the main transaction has successfully committed.

  Can e.g. commit further operations that are supposed to follow on a successful commit of the main transaction, like confirmation messages or emails.

  NOTE: The transaction will have been committed already, but the transactional resources might still be active and accessible. As a consequence, any data access code triggered at this point will still "participate" in the original transaction, allowing to perform some cleanup (with no commit following anymore!), unless it explicitly declares that it needs to run in a separate transaction. Hence: Use PROPAGATION_REQUIRES_NEW for any transactional operation that is called from here.

  指定者:

  afterCommit 在接口中 TransactionSynchronization

• afterCompletion

  public void afterCompletion​(int status)

  从接口复制的说明: TransactionSynchronization
  Invoked after transaction commit/rollback. Can perform resource cleanup after transaction completion.

  NOTE: The transaction will have been committed or rolled back already, but the transactional resources might still be active and accessible. As a consequence, any data access code triggered at this point will still "participate" in the original transaction, allowing to perform some cleanup (with no commit following anymore!), unless it explicitly declares that it needs to run in a separate transaction. Hence: Use PROPAGATION_REQUIRES_NEW for any transactional operation that is called from here.

  指定者:

  afterCompletion 在接口中 TransactionSynchronization

  参数:

  status - completion status according to the STATUS_* constants

  另请参阅:

  TransactionSynchronization.STATUS_COMMITTED, TransactionSynchronization.STATUS_ROLLED_BACK, TransactionSynchronization.STATUS_UNKNOWN, TransactionSynchronization.beforeCompletion()

• shouldUnbindAtCompletion

  protected boolean shouldUnbindAtCompletion()

  Return whether this holder should be unbound at completion (or should rather be left bound to the thread after the transaction).

  The default implementation returns true.

• shouldReleaseBeforeCompletion

  protected boolean shouldReleaseBeforeCompletion()

  Return whether this holder's resource should be released before transaction completion (true) or rather after transaction completion (false).

  Note that resources will only be released when they are unbound from the thread (shouldUnbindAtCompletion()).

  The default implementation returns true.

  另请参阅:

  releaseResource(H, K)

• shouldReleaseAfterCompletion

  protected boolean shouldReleaseAfterCompletion​(H resourceHolder)

  Return whether this holder's resource should be released after transaction completion (true).

  The default implementation returns !shouldReleaseBeforeCompletion(), releasing after completion if no attempt was made before completion.

  另请参阅:

  releaseResource(H, K)

• flushResource

  protected void flushResource​(H resourceHolder)

  Flush callback for the given resource holder.

  参数:

  resourceHolder - the resource holder to flush

• processResourceAfterCommit

  protected void processResourceAfterCommit​(H resourceHolder)

  After-commit callback for the given resource holder. Only called when the resource hasn't been released yet (shouldReleaseBeforeCompletion()).

  参数:

  resourceHolder - the resource holder to process

• releaseResource

  protected void releaseResource​(H resourceHolder,
                                 K resourceKey)

  Release the given resource (after it has been unbound from the thread).

  参数:

  resourceHolder - the resource holder to process

  resourceKey - the key that the ResourceHolder was bound for

• cleanupResource

  protected void cleanupResource​(H resourceHolder,
                                 K resourceKey,
                                 boolean committed)

  Perform a cleanup on the given resource (which is left bound to the thread).

  参数:

  resourceHolder - the resource holder to process

  resourceKey - the key that the ResourceHolder was bound for

  committed - whether the transaction has committed (true) or rolled back (false)