public class HibernateTransactionManager extends AbstractPlatformTransactionManager implements ResourceTransactionManager, BeanFactoryAware, InitializingBean
PlatformTransactionManager
implementation for a single Hibernate SessionFactory
.
Binds a Hibernate Session from the specified factory to the thread,
potentially allowing for one thread-bound Session per factory.
SessionFactory.getCurrentSession()
is required for Hibernate
access code that needs to support this transaction handling mechanism,
with the SessionFactory being configured with SpringSessionContext
.
Supports custom isolation levels, and timeouts that get applied as Hibernate transaction timeouts.
This transaction manager is appropriate for applications that use a single
Hibernate SessionFactory for transactional data access, but it also supports
direct DataSource access within a transaction (i.e. plain JDBC code working
with the same DataSource). This allows for mixing services which access Hibernate
and services which use plain JDBC (without being aware of Hibernate)!
Application code needs to stick to the same simple Connection lookup pattern as
with DataSourceTransactionManager
(i.e. DataSourceUtils.getConnection(javax.sql.DataSource)
or going through a
TransactionAwareDataSourceProxy
).
Note: To be able to register a DataSource's Connection for plain JDBC code,
this instance needs to be aware of the DataSource (setDataSource(javax.sql.DataSource)
).
The given DataSource should obviously match the one used by the given SessionFactory.
JTA (usually through JtaTransactionManager
)
is necessary for accessing multiple transactional resources within the same
transaction. The DataSource that Hibernate uses needs to be JTA-enabled in
such a scenario (see container setup).
This transaction manager supports nested transactions via JDBC 3.0 Savepoints.
The AbstractPlatformTransactionManager.setNestedTransactionAllowed(boolean)
"nestedTransactionAllowed"} flag defaults
to "false", though, as nested transactions will just apply to the JDBC Connection,
not to the Hibernate Session and its cached entity objects and related context.
You can manually set the flag to "true" if you want to use nested transactions
for JDBC access code which participates in Hibernate transactions (provided that
your JDBC driver supports Savepoints). Note that Hibernate itself does not
support nested transactions! Hence, do not expect Hibernate access code to
semantically participate in a nested transaction.
setSessionFactory(SessionFactory)
,
setDataSource(javax.sql.DataSource)
,
SessionFactory#getCurrentSession()
,
DataSourceUtils.getConnection(javax.sql.DataSource)
,
DataSourceUtils.releaseConnection(java.sql.Connection, javax.sql.DataSource)
,
JdbcTemplate
,
DataSourceTransactionManager
,
JtaTransactionManager
,
Serialized FormModifier and Type | Class and Description |
---|---|
private class |
HibernateTransactionManager.HibernateTransactionObject
Hibernate transaction object, representing a SessionHolder.
|
private static class |
HibernateTransactionManager.SuspendedResourcesHolder
Holder for suspended resources.
|
Modifier and Type | Field and Description |
---|---|
private boolean |
allowResultAccessAfterCompletion |
private boolean |
autodetectDataSource |
private BeanFactory |
beanFactory
Just needed for entityInterceptorBeanName.
|
private javax.sql.DataSource |
dataSource |
private java.lang.Object |
entityInterceptor |
private boolean |
hibernateManagedSession |
private boolean |
prepareConnection |
private SessionFactory |
sessionFactory |
logger, SYNCHRONIZATION_ALWAYS, SYNCHRONIZATION_NEVER, SYNCHRONIZATION_ON_ACTUAL_TRANSACTION
Constructor and Description |
---|
HibernateTransactionManager()
Create a new HibernateTransactionManager instance.
|
HibernateTransactionManager(SessionFactory sessionFactory)
Create a new HibernateTransactionManager instance.
|
Modifier and Type | Method and Description |
---|---|
void |
afterPropertiesSet()
Invoked by a BeanFactory after it has set all bean properties supplied
(and satisfied BeanFactoryAware and ApplicationContextAware).
|
protected DataAccessException |
convertHibernateAccessException(HibernateException ex)
Convert the given HibernateException to an appropriate exception
from the
org.springframework.dao hierarchy. |
protected void |
disconnectOnCompletion(Session session)
Disconnect a pre-existing Hibernate Session on transaction completion,
returning its database connection but preserving its entity state.
|
protected void |
doBegin(java.lang.Object transaction,
TransactionDefinition definition)
Begin a new transaction with semantics according to the given transaction
definition.
|
protected void |
doCleanupAfterCompletion(java.lang.Object transaction)
Cleanup resources after transaction completion.
|
protected void |
doCommit(DefaultTransactionStatus status)
Perform an actual commit of the given transaction.
|
protected java.lang.Object |
doGetTransaction()
Return a transaction object for the current transaction state.
|
protected void |
doResume(java.lang.Object transaction,
java.lang.Object suspendedResources)
Resume the resources of the current transaction.
|
protected void |
doRollback(DefaultTransactionStatus status)
Perform an actual rollback of the given transaction.
|
protected void |
doSetRollbackOnly(DefaultTransactionStatus status)
Set the given transaction rollback-only.
|
protected java.lang.Object |
doSuspend(java.lang.Object transaction)
Suspend the resources of the current transaction.
|
javax.sql.DataSource |
getDataSource()
Return the JDBC DataSource that this instance manages transactions for.
|
Interceptor |
getEntityInterceptor()
Return the current Hibernate entity interceptor, or
null if none. |
java.lang.Object |
getResourceFactory()
Return the resource factory that this transaction manager operates on,
e.g.
|
SessionFactory |
getSessionFactory()
Return the SessionFactory that this instance should manage transactions for.
|
protected boolean |
isExistingTransaction(java.lang.Object transaction)
Check if the given transaction object indicates an existing transaction
(that is, a transaction which has already started).
|
protected boolean |
isPhysicallyConnected(Session session)
Determine whether the given Session is (still) physically connected
to the database, that is, holds an active JDBC Connection internally.
|
protected boolean |
isSameConnectionForEntireSession(Session session)
Return whether the given Hibernate Session will always hold the same
JDBC Connection.
|
void |
setAllowResultAccessAfterCompletion(boolean allowResultAccessAfterCompletion)
Set whether to allow result access after completion, typically via Hibernate's
ScrollableResults mechanism.
|
void |
setAutodetectDataSource(boolean autodetectDataSource)
Set whether to autodetect a JDBC DataSource used by the Hibernate SessionFactory,
if set via LocalSessionFactoryBean's
setDataSource . |
void |
setBeanFactory(BeanFactory beanFactory)
The bean factory just needs to be known for resolving entity interceptor
bean names.
|
void |
setDataSource(javax.sql.DataSource dataSource)
Set the JDBC DataSource that this instance should manage transactions for.
|
void |
setEntityInterceptor(Interceptor entityInterceptor)
Set a Hibernate entity interceptor that allows to inspect and change
property values before writing to and reading from the database.
|
void |
setEntityInterceptorBeanName(java.lang.String entityInterceptorBeanName)
Set the bean name of a Hibernate entity interceptor that allows to inspect
and change property values before writing to and reading from the database.
|
void |
setHibernateManagedSession(boolean hibernateManagedSession)
Set whether to operate on a Hibernate-managed Session instead of a
Spring-managed Session, that is, whether to obtain the Session through
Hibernate's
SessionFactory#getCurrentSession()
instead of SessionFactory#openSession() (with a Spring
TransactionSynchronizationManager
check preceding it). |
void |
setPrepareConnection(boolean prepareConnection)
Set whether to prepare the underlying JDBC Connection of a transactional
Hibernate Session, that is, whether to apply a transaction-specific
isolation level and/or the transaction's read-only flag to the underlying
JDBC Connection.
|
void |
setSessionFactory(SessionFactory sessionFactory)
Set the SessionFactory that this instance should manage transactions for.
|
commit, determineTimeout, getDefaultTimeout, getTransaction, getTransactionSynchronization, invokeAfterCompletion, isFailEarlyOnGlobalRollbackOnly, isGlobalRollbackOnParticipationFailure, isNestedTransactionAllowed, isRollbackOnCommitFailure, isValidateExistingTransaction, newTransactionStatus, prepareForCommit, prepareSynchronization, prepareTransactionStatus, registerAfterCompletionWithExistingTransaction, resume, rollback, setDefaultTimeout, setFailEarlyOnGlobalRollbackOnly, setGlobalRollbackOnParticipationFailure, setNestedTransactionAllowed, setRollbackOnCommitFailure, setTransactionSynchronization, setTransactionSynchronizationName, setValidateExistingTransaction, shouldCommitOnGlobalRollbackOnly, suspend, triggerBeforeCommit, triggerBeforeCompletion, useSavepointForNestedTransaction
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
commit, getTransaction, rollback
private SessionFactory sessionFactory
private javax.sql.DataSource dataSource
private boolean autodetectDataSource
private boolean prepareConnection
private boolean allowResultAccessAfterCompletion
private boolean hibernateManagedSession
private java.lang.Object entityInterceptor
private BeanFactory beanFactory
public HibernateTransactionManager()
setSessionFactory(SessionFactory)
public HibernateTransactionManager(SessionFactory sessionFactory)
sessionFactory
- SessionFactory to manage transactions forpublic void setSessionFactory(SessionFactory sessionFactory)
public SessionFactory getSessionFactory()
public void setDataSource(javax.sql.DataSource dataSource)
If the SessionFactory was configured with LocalDataSourceConnectionProvider, i.e. by Spring's LocalSessionFactoryBean with a specified "dataSource", the DataSource will be auto-detected: You can still explicitly specify the DataSource, but you don't need to in this case.
A transactional JDBC Connection for this DataSource will be provided to application code accessing this DataSource directly via DataSourceUtils or JdbcTemplate. The Connection will be taken from the Hibernate Session.
The DataSource specified here should be the target DataSource to manage transactions for, not a TransactionAwareDataSourceProxy. Only data access code may work with TransactionAwareDataSourceProxy, while the transaction manager needs to work on the underlying target DataSource. If there's nevertheless a TransactionAwareDataSourceProxy passed in, it will be unwrapped to extract its target DataSource.
public javax.sql.DataSource getDataSource()
public void setAutodetectDataSource(boolean autodetectDataSource)
setDataSource
. Default is "true".
Can be turned off to deliberately ignore an available DataSource, in order to not expose Hibernate transactions as JDBC transactions for that DataSource.
setDataSource(javax.sql.DataSource)
public void setPrepareConnection(boolean prepareConnection)
Default is "true". If you turn this flag off, the transaction manager
will not support per-transaction isolation levels anymore. It will not
call Connection.setReadOnly(true)
for read-only transactions
anymore either. If this flag is turned off, no cleanup of a JDBC Connection
is required after a transaction, since no Connection settings will get modified.
Connection.setTransactionIsolation(int)
,
Connection.setReadOnly(boolean)
public void setAllowResultAccessAfterCompletion(boolean allowResultAccessAfterCompletion)
Default is "false". Turning this flag on enforces over-commit holdability on the
underlying JDBC Connection (if "prepareConnection"
is on)
and skips the disconnect-on-completion step.
Connection.setHoldability(int)
,
ResultSet.HOLD_CURSORS_OVER_COMMIT
,
disconnectOnCompletion(Session)
public void setHibernateManagedSession(boolean hibernateManagedSession)
SessionFactory#getCurrentSession()
instead of SessionFactory#openSession()
(with a Spring
TransactionSynchronizationManager
check preceding it).
Default is "false", i.e. using a Spring-managed Session: taking the current thread-bound Session if available (e.g. in an Open-Session-in-View scenario), creating a new Session for the current transaction otherwise.
Switch this flag to "true" in order to enforce use of a Hibernate-managed Session.
Note that this requires SessionFactory#getCurrentSession()
to always return a proper Session when called for a Spring-managed transaction;
transaction begin will fail if the getCurrentSession()
call fails.
This mode will typically be used in combination with a custom Hibernate
org.hibernate.context.spi.CurrentSessionContext
implementation that stores
Sessions in a place other than Spring's TransactionSynchronizationManager.
It may also be used in combination with Spring's Open-Session-in-View support
(using Spring's default SpringSessionContext
), in which case it subtly
differs from the Spring-managed Session mode: The pre-bound Session will not
receive a clear()
call (on rollback) or a disconnect()
call (on transaction completion) in such a scenario; this is rather left up
to a custom CurrentSessionContext implementation (if desired).
public void setEntityInterceptorBeanName(java.lang.String entityInterceptorBeanName)
Requires the bean factory to be known, to be able to resolve the bean name to an interceptor instance on session creation. Typically used for prototype interceptors, i.e. a new interceptor instance per session.
Can also be used for shared interceptor instances, but it is recommended to set the interceptor reference directly in such a scenario.
entityInterceptorBeanName
- the name of the entity interceptor in
the bean factorysetBeanFactory(org.springframework.beans.factory.BeanFactory)
,
setEntityInterceptor(Interceptor)
public void setEntityInterceptor(Interceptor entityInterceptor)
Such an interceptor can either be set at the SessionFactory level, i.e. on LocalSessionFactoryBean, or at the Session level, i.e. on HibernateTransactionManager.
public Interceptor getEntityInterceptor() throws java.lang.IllegalStateException, BeansException
null
if none.
Resolves an entity interceptor bean name via the bean factory,
if necessary.java.lang.IllegalStateException
- if bean name specified but no bean factory setBeansException
- if bean name resolution via the bean factory failedsetEntityInterceptor(Interceptor)
,
setEntityInterceptorBeanName(java.lang.String)
,
setBeanFactory(org.springframework.beans.factory.BeanFactory)
public void setBeanFactory(BeanFactory beanFactory)
setBeanFactory
in interface BeanFactoryAware
beanFactory
- owning BeanFactory (never null
).
The bean can immediately call methods on the factory.setEntityInterceptorBeanName(java.lang.String)
public void afterPropertiesSet()
InitializingBean
This method allows the bean instance to perform initialization only possible when all bean properties have been set and to throw an exception in the event of misconfiguration.
afterPropertiesSet
in interface InitializingBean
public java.lang.Object getResourceFactory()
ResourceTransactionManager
This target resource factory is usually used as resource key for
TransactionSynchronizationManager
's resource bindings per thread.
getResourceFactory
in interface ResourceTransactionManager
null
)TransactionSynchronizationManager.bindResource(java.lang.Object, java.lang.Object)
,
TransactionSynchronizationManager.getResource(java.lang.Object)
protected java.lang.Object doGetTransaction()
AbstractPlatformTransactionManager
The returned object will usually be specific to the concrete transaction manager implementation, carrying corresponding transaction state in a modifiable fashion. This object will be passed into the other template methods (e.g. doBegin and doCommit), either directly or as part of a DefaultTransactionStatus instance.
The returned object should contain information about any existing
transaction, that is, a transaction that has already started before the
current getTransaction
call on the transaction manager.
Consequently, a doGetTransaction
implementation will usually
look for an existing transaction and store corresponding state in the
returned transaction object.
doGetTransaction
in class AbstractPlatformTransactionManager
AbstractPlatformTransactionManager.doBegin(java.lang.Object, org.springframework.transaction.TransactionDefinition)
,
AbstractPlatformTransactionManager.doCommit(org.springframework.transaction.support.DefaultTransactionStatus)
,
AbstractPlatformTransactionManager.doRollback(org.springframework.transaction.support.DefaultTransactionStatus)
,
DefaultTransactionStatus.getTransaction()
protected boolean isExistingTransaction(java.lang.Object transaction)
AbstractPlatformTransactionManager
The result will be evaluated according to the specified propagation behavior for the new transaction. An existing transaction might get suspended (in case of PROPAGATION_REQUIRES_NEW), or the new transaction might participate in the existing one (in case of PROPAGATION_REQUIRED).
The default implementation returns false
, assuming that
participating in existing transactions is generally not supported.
Subclasses are of course encouraged to provide such support.
isExistingTransaction
in class AbstractPlatformTransactionManager
transaction
- transaction object returned by doGetTransactionAbstractPlatformTransactionManager.doGetTransaction()
protected void doBegin(java.lang.Object transaction, TransactionDefinition definition)
AbstractPlatformTransactionManager
This method gets called when the transaction manager has decided to actually start a new transaction. Either there wasn't any transaction before, or the previous transaction has been suspended.
A special scenario is a nested transaction without savepoint: If
useSavepointForNestedTransaction()
returns "false", this method
will be called to start a nested transaction when necessary. In such a context,
there will be an active transaction: The implementation of this method has
to detect this and start an appropriate nested transaction.
doBegin
in class AbstractPlatformTransactionManager
transaction
- transaction object returned by doGetTransaction
definition
- TransactionDefinition instance, describing propagation
behavior, isolation level, read-only flag, timeout, and transaction nameprotected java.lang.Object doSuspend(java.lang.Object transaction)
AbstractPlatformTransactionManager
The default implementation throws a TransactionSuspensionNotSupportedException, assuming that transaction suspension is generally not supported.
doSuspend
in class AbstractPlatformTransactionManager
transaction
- transaction object returned by doGetTransaction
AbstractPlatformTransactionManager.doResume(java.lang.Object, java.lang.Object)
protected void doResume(java.lang.Object transaction, java.lang.Object suspendedResources)
AbstractPlatformTransactionManager
The default implementation throws a TransactionSuspensionNotSupportedException, assuming that transaction suspension is generally not supported.
doResume
in class AbstractPlatformTransactionManager
transaction
- transaction object returned by doGetTransaction
suspendedResources
- the object that holds suspended resources,
as returned by doSuspendAbstractPlatformTransactionManager.doSuspend(java.lang.Object)
protected void doCommit(DefaultTransactionStatus status)
AbstractPlatformTransactionManager
An implementation does not need to check the "new transaction" flag or the rollback-only flag; this will already have been handled before. Usually, a straight commit will be performed on the transaction object contained in the passed-in status.
doCommit
in class AbstractPlatformTransactionManager
status
- the status representation of the transactionDefaultTransactionStatus.getTransaction()
protected void doRollback(DefaultTransactionStatus status)
AbstractPlatformTransactionManager
An implementation does not need to check the "new transaction" flag; this will already have been handled before. Usually, a straight rollback will be performed on the transaction object contained in the passed-in status.
doRollback
in class AbstractPlatformTransactionManager
status
- the status representation of the transactionDefaultTransactionStatus.getTransaction()
protected void doSetRollbackOnly(DefaultTransactionStatus status)
AbstractPlatformTransactionManager
The default implementation throws an IllegalTransactionStateException, assuming that participating in existing transactions is generally not supported. Subclasses are of course encouraged to provide such support.
doSetRollbackOnly
in class AbstractPlatformTransactionManager
status
- the status representation of the transactionprotected void doCleanupAfterCompletion(java.lang.Object transaction)
AbstractPlatformTransactionManager
Called after doCommit
and doRollback
execution,
on any outcome. The default implementation does nothing.
Should not throw any exceptions but just issue warnings on errors.
doCleanupAfterCompletion
in class AbstractPlatformTransactionManager
transaction
- transaction object returned by doGetTransaction
protected void disconnectOnCompletion(Session session)
The default implementation simply calls Session#disconnect()
.
Subclasses may override this with a no-op or with fine-tuned disconnection logic.
session
- the Hibernate Session to disconnectSession#disconnect()
protected boolean isSameConnectionForEntireSession(Session session)
The default implementation checks the Session's connection release mode to be "on_close".
session
- the Hibernate Session to checkConnectionReleaseMode#ON_CLOSE
protected boolean isPhysicallyConnected(Session session)
session
- the Hibernate Session to checkisSameConnectionForEntireSession(Session)
protected DataAccessException convertHibernateAccessException(HibernateException ex)
org.springframework.dao
hierarchy.
Will automatically apply a specified SQLExceptionTranslator to a Hibernate JDBCException, else rely on Hibernate's default translation.
ex
- HibernateException that occurredSessionFactoryUtils.convertHibernateAccessException(HibernateException)