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java.lang.Objectorg.springframework.transaction.support.ResourceHolderSynchronization
public class ResourceHolderSynchronization
TransactionSynchronization implementation that manages a
ResourceHolder bound through TransactionSynchronizationManager.
| Field Summary |
|---|
| Fields inherited from interface org.springframework.transaction.support.TransactionSynchronization |
|---|
STATUS_COMMITTED, STATUS_ROLLED_BACK, STATUS_UNKNOWN |
| Constructor Summary | |
|---|---|
ResourceHolderSynchronization(ResourceHolder resourceHolder,
Object resourceKey)
Create a new ResourceHolderSynchronization for the given holder. |
|
| Method Summary | |
|---|---|
void |
afterCommit()
Invoked after transaction commit. |
void |
afterCompletion(int status)
Invoked after transaction commit/rollback. |
void |
beforeCommit(boolean readOnly)
Invoked before transaction commit (before "beforeCompletion"). |
void |
beforeCompletion()
Invoked before transaction commit/rollback. |
protected void |
cleanupResource(ResourceHolder resourceHolder,
Object resourceKey,
boolean committed)
Perform a cleanup on the given resource (which is left bound to the thread). |
protected void |
processResourceAfterCommit(ResourceHolder resourceHolder)
After-commit callback for the given resource holder. |
protected void |
releaseResource(ResourceHolder resourceHolder,
Object resourceKey)
Release the given resource (after it has been unbound from the thread). |
void |
resume()
Resume this synchronization. |
protected boolean |
shouldReleaseBeforeCompletion()
Return whether this holder's resource should be released before transaction completion ( true) or rather after
transaction completion (false). |
protected boolean |
shouldUnbindAtCompletion()
Return whether this holder should be unbound at completion (or should rather be left bound to the thread after the transaction). |
void |
suspend()
Suspend this synchronization. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public ResourceHolderSynchronization(ResourceHolder resourceHolder,
Object resourceKey)
resourceHolder - the ResourceHolder to manageresourceKey - the key to bind the ResourceHolder forTransactionSynchronizationManager.bindResource(java.lang.Object, java.lang.Object)| Method Detail |
|---|
public void suspend()
TransactionSynchronization
suspend in interface TransactionSynchronizationTransactionSynchronizationManager.unbindResource(java.lang.Object)public void resume()
TransactionSynchronization
resume in interface TransactionSynchronizationTransactionSynchronizationManager.bindResource(java.lang.Object, java.lang.Object)public void beforeCommit(boolean readOnly)
TransactionSynchronizationThis 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.
beforeCommit in interface TransactionSynchronizationreadOnly - whether the transaction is defined as read-only transactionTransactionSynchronization.beforeCompletion()public void beforeCompletion()
TransactionSynchronizationThis method will be invoked after beforeCommit, even when
beforeCommit threw an exception. This callback allows for
closing resources before transaction completion, for any outcome.
beforeCompletion in interface TransactionSynchronizationTransactionSynchronization.beforeCommit(boolean),
TransactionSynchronization.afterCompletion(int)public void afterCommit()
TransactionSynchronizationCan 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.
afterCommit in interface TransactionSynchronizationpublic void afterCompletion(int status)
TransactionSynchronizationNOTE: 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.
afterCompletion in interface TransactionSynchronizationstatus - completion status according to the STATUS_* constantsTransactionSynchronization.STATUS_COMMITTED,
TransactionSynchronization.STATUS_ROLLED_BACK,
TransactionSynchronization.STATUS_UNKNOWN,
TransactionSynchronization.beforeCompletion()protected boolean shouldUnbindAtCompletion()
The default implementation returns true.
protected boolean shouldReleaseBeforeCompletion()
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.
releaseResource(org.springframework.transaction.support.ResourceHolder, java.lang.Object)protected void processResourceAfterCommit(ResourceHolder resourceHolder)
shouldReleaseBeforeCompletion()).
resourceHolder - the resource holder to process
protected void releaseResource(ResourceHolder resourceHolder,
Object resourceKey)
resourceHolder - the resource holder to processresourceKey - the key that the ResourceHolder was bound for
protected void cleanupResource(ResourceHolder resourceHolder,
Object resourceKey,
boolean committed)
resourceHolder - the resource holder to processresourceKey - the key that the ResourceHolder was bound forcommitted - whether the transaction has committed (true)
or rolled back (false)
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