## org.springframework.jdbc.support.lob
Class SpringLobCreatorSynchronization

    java.lang.Object
      org.springframework.transaction.support.TransactionSynchronizationAdapter
          org.springframework.jdbc.support.lob.SpringLobCreatorSynchronization

All Implemented Interfaces:
  Ordered, TransactionSynchronization

    public class SpringLobCreatorSynchronization

extends TransactionSynchronizationAdapter

Callback for resource cleanup at the end of a Spring transaction. Invokes `LobCreator.close()` to clean up temporary LOBs that might have been created.

Since:
  2.0
Author:
  Juergen Hoeller
See Also:
  `LobCreator.close()`

Field Summary
`static int` `LOB_CREATOR_SYNCHRONIZATION_ORDER` Order value for TransactionSynchronization objects that clean up LobCreators.

Fields inherited from interface org.springframework.transaction.support.TransactionSynchronization
`STATUS_COMMITTED, STATUS_ROLLED_BACK, STATUS_UNKNOWN`

Fields inherited from interface org.springframework.core.Ordered
`HIGHEST_PRECEDENCE, LOWEST_PRECEDENCE`

Constructor Summary
`SpringLobCreatorSynchronization(LobCreator lobCreator)` Create a SpringLobCreatorSynchronization for the given LobCreator.

Method Summary
`void` `afterCompletion(int status)` Invoked after transaction commit/rollback.
`void` `beforeCompletion()` Invoked before transaction commit/rollback.
`int` `getOrder()` Return the order value of this object, with a higher value meaning greater in terms of sorting.

Methods inherited from class org.springframework.transaction.support.TransactionSynchronizationAdapter
`afterCommit, beforeCommit, resume, suspend`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### LOB_CREATOR_SYNCHRONIZATION_ORDER

    public static final int LOB_CREATOR_SYNCHRONIZATION_ORDER

  Order value for TransactionSynchronization objects that clean up LobCreators. Return CONNECTION_SYNCHRONIZATION_ORDER - 200 to execute LobCreator cleanup before Hibernate Session (- 100) and JDBC Connection cleanup, if any.

  See Also:
    `DataSourceUtils.CONNECTION_SYNCHRONIZATION_ORDER`, Constant Field Values

Constructor Detail

### SpringLobCreatorSynchronization

    public SpringLobCreatorSynchronization(LobCreator lobCreator)

  Create a SpringLobCreatorSynchronization for the given LobCreator.

  Parameters:
    `lobCreator` - the LobCreator to close after transaction completion

Method Detail

### getOrder

    public int getOrder()

  Description copied from interface: `Ordered`
  Return the order value of this object, with a higher value meaning greater in terms of sorting.

  Normally starting with 0 or 1, with `Ordered.LOWEST_PRECEDENCE` indicating greatest. Same order values will result in arbitrary positions for the affected objects.

  Higher value can be interpreted as lower priority, consequently the first object has highest priority (somewhat analogous to Servlet "load-on-startup" values).

  Note that order values below 0 are reserved for framework purposes. Application-specified values should always be 0 or greater, with only framework components (internal or third-party) supposed to use lower values.

  Specified by:
    `getOrder` in interface `Ordered`
  Overrides:
    `getOrder` in class `TransactionSynchronizationAdapter`
  Returns:
    the order value
  See Also:
    `Ordered.LOWEST_PRECEDENCE`

### beforeCompletion

    public void beforeCompletion()

  Description copied from interface: `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.

  Specified by:
    `beforeCompletion` in interface `TransactionSynchronization`
  Overrides:
    `beforeCompletion` in class `TransactionSynchronizationAdapter`
  See Also:
    `TransactionSynchronization.beforeCommit(boolean)`, `TransactionSynchronization.afterCompletion(int)`

### afterCompletion

    public void afterCompletion(int status)

  Description copied from interface: `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.

  Specified by:
    `afterCompletion` in interface `TransactionSynchronization`
  Overrides:
    `afterCompletion` in class `TransactionSynchronizationAdapter`
  Parameters:
    `status` - completion status according to the `STATUS_*` constants
  See Also:
    `TransactionSynchronization.STATUS_COMMITTED`, `TransactionSynchronization.STATUS_ROLLED_BACK`, `TransactionSynchronization.STATUS_UNKNOWN`, `TransactionSynchronization.beforeCompletion()`

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