Spring Framework

org.springframework.transaction.jta
Class JtaTransactionManager

java.lang.Object
  extended by org.springframework.transaction.support.AbstractPlatformTransactionManager
      extended by org.springframework.transaction.jta.JtaTransactionManager
All Implemented Interfaces:
java.io.Serializable, InitializingBean, TransactionFactory, PlatformTransactionManager
Direct Known Subclasses:
OC4JJtaTransactionManager, WebLogicJtaTransactionManager, WebSphereUowTransactionManager

public class JtaTransactionManager
extends AbstractPlatformTransactionManager
implements TransactionFactory, InitializingBean, java.io.Serializable

PlatformTransactionManager implementation for JTA, delegating to a backend JTA provider. This is typically used to delegate to a Java EE server's transaction coordinator, but may also be configured with a local JTA provider which is embedded within the application.

This transaction manager is appropriate for handling distributed transactions, i.e. transactions that span multiple resources, and for controlling transactions on application server resources (e.g. JDBC DataSources available in JNDI) in general. For a single JDBC DataSource, DataSourceTransactionManager is perfectly sufficient, and for accessing a single resource with Hibernate (including transactional cache), HibernateTransactionManager is appropriate, for example.

For typical JTA transactions (REQUIRED, SUPPORTS, MANDATORY, NEVER), a plain JtaTransactionManager definition is all you need, portable across all Java EE servers. This corresponds to the functionality of the JTA UserTransaction, for which Java EE specifies a standard JNDI name ("java:comp/UserTransaction"). There is no need to configure a server-specific TransactionManager lookup for this kind of JTA usage.

Transaction suspension (REQUIRES_NEW, NOT_SUPPORTED) is just available with a JTA TransactionManager being registered. Common TransactionManager locations are autodetected by JtaTransactionManager, provided that the "autodetectTransactionManager" flag is set to "true" (which it is by default).

Note: Support for the JTA TransactionManager interface is not required by Java EE. Almost all Java EE servers expose it, but do so as extension to EE. There might be some issues with compatibility, despite the TransactionManager interface being part of JTA. As a consequence, Spring provides various vendor-specific PlatformTransactionManagers, which are recommended to be used if appropriate: WebLogicJtaTransactionManager, WebSphereUowTransactionManager and OC4JJtaTransactionManager. For all other Java EE servers, the standard JtaTransactionManager is sufficient.

This pure JtaTransactionManager class supports timeouts but not per-transaction isolation levels. Custom subclasses may override the doJtaBegin(org.springframework.transaction.jta.JtaTransactionObject, org.springframework.transaction.TransactionDefinition) method for specific JTA extensions in order to provide this functionality; Spring includes corresponding WebLogicJtaTransactionManager and OC4JJtaTransactionManager classes, for BEA's WebLogic Server and Oracle's OC4J, respectively. Such adapters for specific Java EE transaction coordinators may also expose transaction names for monitoring; with standard JTA, transaction names will simply be ignored.

Consider using Spring's tx:jta-transaction-manager configuration element for automatically picking the appropriate JTA platform transaction manager (automatically detecting WebLogic, WebSphere and OC4J).

JTA 1.1 adds the TransactionSynchronizationRegistry facility, as public Java EE 5 API in addition to the standard JTA UserTransaction handle. As of Spring 2.5, this JtaTransactionManager autodetects the TransactionSynchronizationRegistry and uses it for registering Spring-managed synchronizations when participating in an existing JTA transaction (e.g. controlled by EJB CMT). If no TransactionSynchronizationRegistry is available (or the JTA 1.1 API isn't available), then such synchronizations will be registered via the (non-EE) JTA TransactionManager handle.

This class is serializable. However, active synchronizations do not survive serialization.

Since:
24.03.2003
Author:
Juergen Hoeller
See Also:
UserTransaction, TransactionManager, TransactionSynchronizationRegistry, setUserTransactionName(java.lang.String), setUserTransaction(javax.transaction.UserTransaction), setTransactionManagerName(java.lang.String), setTransactionManager(javax.transaction.TransactionManager), WebLogicJtaTransactionManager, Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.springframework.transaction.support.AbstractPlatformTransactionManager
AbstractPlatformTransactionManager.SuspendedResourcesHolder
 
Field Summary
static java.lang.String DEFAULT_TRANSACTION_SYNCHRONIZATION_REGISTRY_NAME
          Standard Java EE 5 JNDI location for the JTA TransactionSynchronizationRegistry.
static java.lang.String DEFAULT_USER_TRANSACTION_NAME
          Default JNDI location for the JTA UserTransaction.
static java.lang.String[] FALLBACK_TRANSACTION_MANAGER_NAMES
          Fallback JNDI locations for the JTA TransactionManager.
 
Fields inherited from class org.springframework.transaction.support.AbstractPlatformTransactionManager
logger, SYNCHRONIZATION_ALWAYS, SYNCHRONIZATION_NEVER, SYNCHRONIZATION_ON_ACTUAL_TRANSACTION
 
Constructor Summary
JtaTransactionManager()
          Create a new JtaTransactionManager instance, to be configured as bean.
JtaTransactionManager(javax.transaction.TransactionManager transactionManager)
          Create a new JtaTransactionManager instance.
JtaTransactionManager(javax.transaction.UserTransaction userTransaction)
          Create a new JtaTransactionManager instance.
JtaTransactionManager(javax.transaction.UserTransaction userTransaction, javax.transaction.TransactionManager transactionManager)
          Create a new JtaTransactionManager instance.
 
Method Summary
 void afterPropertiesSet()
          Initialize the UserTransaction as well as the TransactionManager handle.
protected  void applyIsolationLevel(JtaTransactionObject txObject, int isolationLevel)
          Apply the given transaction isolation level.
protected  void applyTimeout(JtaTransactionObject txObject, int timeout)
          Apply the given transaction timeout.
protected  javax.transaction.UserTransaction buildUserTransaction(javax.transaction.TransactionManager transactionManager)
          Build a UserTransaction handle based on the given TransactionManager.
protected  void checkUserTransactionAndTransactionManager()
          Check the UserTransaction as well as the TransactionManager handle, assuming standard JTA requirements.
 javax.transaction.Transaction createTransaction(java.lang.String name, int timeout)
          Create an active Transaction object based on the given name and timeout.
protected  void doBegin(java.lang.Object transaction, TransactionDefinition definition)
          Begin a new transaction with semantics according to the given transaction definition.
protected  void doCommit(DefaultTransactionStatus status)
          Perform an actual commit of the given transaction.
protected  JtaTransactionObject doGetJtaTransaction(javax.transaction.UserTransaction ut)
          Get a JTA transaction object for the given current UserTransaction.
protected  java.lang.Object doGetTransaction()
          This implementation returns a JtaTransactionObject instance for the JTA UserTransaction.
protected  void doJtaBegin(JtaTransactionObject txObject, TransactionDefinition definition)
          Perform a JTA begin on the JTA UserTransaction or TransactionManager.
protected  void doJtaResume(JtaTransactionObject txObject, java.lang.Object suspendedTransaction)
          Perform a JTA resume on the JTA TransactionManager.
protected  java.lang.Object doJtaSuspend(JtaTransactionObject txObject)
          Perform a JTA suspend on the JTA TransactionManager.
protected  void doRegisterAfterCompletionWithJtaTransaction(JtaTransactionObject txObject, java.util.List<TransactionSynchronization> synchronizations)
          Register a JTA synchronization on the JTA TransactionManager, for calling afterCompletion on the given Spring TransactionSynchronizations.
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.
protected  javax.transaction.TransactionManager findTransactionManager(javax.transaction.UserTransaction ut)
          Find the JTA TransactionManager through autodetection: checking whether the UserTransaction object implements the TransactionManager, and checking the fallback JNDI locations.
protected  java.lang.Object findTransactionSynchronizationRegistry(javax.transaction.UserTransaction ut, javax.transaction.TransactionManager tm)
          Find the JTA 1.1 TransactionSynchronizationRegistry through autodetection: checking whether the UserTransaction object or TransactionManager object implements it, and checking Java EE 5's standard JNDI location.
protected  javax.transaction.UserTransaction findUserTransaction()
          Find the JTA UserTransaction through a default JNDI lookup: "java:comp/UserTransaction".
 java.util.Properties getJndiEnvironment()
          Return the JNDI environment to use for JNDI lookups.
 JndiTemplate getJndiTemplate()
          Return the JndiTemplate used for JNDI lookups.
 javax.transaction.TransactionManager getTransactionManager()
          Return the JTA TransactionManager that this transaction manager uses.
 javax.transaction.UserTransaction getUserTransaction()
          Return the JTA UserTransaction that this transaction manager uses.
protected  void initTransactionSynchronizationRegistry()
          Initialize the JTA 1.1 TransactionSynchronizationRegistry, if available.
protected  void initUserTransactionAndTransactionManager()
          Initialize the UserTransaction as well as the TransactionManager handle.
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  javax.transaction.TransactionManager lookupTransactionManager(java.lang.String transactionManagerName)
          Look up the JTA TransactionManager in JNDI via the configured name.
protected  java.lang.Object lookupTransactionSynchronizationRegistry(java.lang.String registryName)
          Look up the JTA 1.1 TransactionSynchronizationRegistry in JNDI via the configured name.
protected  javax.transaction.UserTransaction lookupUserTransaction(java.lang.String userTransactionName)
          Look up the JTA UserTransaction in JNDI via the configured name.
protected  void registerAfterCompletionWithExistingTransaction(java.lang.Object transaction, java.util.List<TransactionSynchronization> synchronizations)
          Register the given list of transaction synchronizations with the existing transaction.
protected  javax.transaction.TransactionManager retrieveTransactionManager()
          Allows subclasses to retrieve the JTA TransactionManager in a vendor-specific manner.
protected  java.lang.Object retrieveTransactionSynchronizationRegistry()
          Allows subclasses to retrieve the JTA 1.1 TransactionSynchronizationRegistry in a vendor-specific manner.
protected  javax.transaction.UserTransaction retrieveUserTransaction()
          Allows subclasses to retrieve the JTA UserTransaction in a vendor-specific manner.
 void setAllowCustomIsolationLevels(boolean allowCustomIsolationLevels)
          Set whether to allow custom isolation levels to be specified.
 void setAutodetectTransactionManager(boolean autodetectTransactionManager)
          Set whether to autodetect a JTA UserTransaction object that implements the JTA TransactionManager interface too (i.e.
 void setAutodetectUserTransaction(boolean autodetectUserTransaction)
          Set whether to autodetect the JTA UserTransaction at its default JNDI location "java:comp/UserTransaction", as specified by Java EE.
 void setCacheUserTransaction(boolean cacheUserTransaction)
          Set whether to cache the JTA UserTransaction object fetched from JNDI.
 void setJndiEnvironment(java.util.Properties jndiEnvironment)
          Set the JNDI environment to use for JNDI lookups.
 void setJndiTemplate(JndiTemplate jndiTemplate)
          Set the JndiTemplate to use for JNDI lookups.
 void setTransactionManager(javax.transaction.TransactionManager transactionManager)
          Set the JTA TransactionManager to use as direct reference.
 void setTransactionManagerName(java.lang.String transactionManagerName)
          Set the JNDI name of the JTA TransactionManager.
 void setTransactionSynchronizationRegistryName(java.lang.String transactionSynchronizationRegistryName)
          Set the JNDI name of the JTA 1.1 TransactionSynchronizationRegistry.
 void setUserTransaction(javax.transaction.UserTransaction userTransaction)
          Set the JTA UserTransaction to use as direct reference.
 void setUserTransactionName(java.lang.String userTransactionName)
          Set the JNDI name of the JTA UserTransaction.
protected  boolean shouldCommitOnGlobalRollbackOnly()
          This implementation returns "true": a JTA commit will properly handle transactions that have been marked rollback-only at a global level.
 boolean supportsResourceAdapterManagedTransactions()
          Determine whether the underlying transaction manager supports XA transactions managed by a resource adapter (i.e.
protected  boolean useSavepointForNestedTransaction()
          This implementation returns false to cause a further invocation of doBegin despite an already existing transaction.
 
Methods inherited from class org.springframework.transaction.support.AbstractPlatformTransactionManager
commit, determineTimeout, doCleanupAfterCompletion, getDefaultTimeout, getTransaction, getTransactionSynchronization, invokeAfterCompletion, isFailEarlyOnGlobalRollbackOnly, isGlobalRollbackOnParticipationFailure, isNestedTransactionAllowed, isRollbackOnCommitFailure, isValidateExistingTransaction, newTransactionStatus, prepareForCommit, prepareSynchronization, prepareTransactionStatus, resume, rollback, setDefaultTimeout, setFailEarlyOnGlobalRollbackOnly, setGlobalRollbackOnParticipationFailure, setNestedTransactionAllowed, setRollbackOnCommitFailure, setTransactionSynchronization, setTransactionSynchronizationName, setValidateExistingTransaction, suspend, triggerBeforeCommit, triggerBeforeCompletion
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

DEFAULT_USER_TRANSACTION_NAME

public static final java.lang.String DEFAULT_USER_TRANSACTION_NAME
Default JNDI location for the JTA UserTransaction. Many Java EE servers also provide support for the JTA TransactionManager interface there.

See Also:
setUserTransactionName(java.lang.String), setAutodetectTransactionManager(boolean), Constant Field Values

FALLBACK_TRANSACTION_MANAGER_NAMES

public static final java.lang.String[] FALLBACK_TRANSACTION_MANAGER_NAMES
Fallback JNDI locations for the JTA TransactionManager. Applied if the JTA UserTransaction does not implement the JTA TransactionManager interface, provided that the "autodetectTransactionManager" flag is "true".

See Also:
setTransactionManagerName(java.lang.String), setAutodetectTransactionManager(boolean)

DEFAULT_TRANSACTION_SYNCHRONIZATION_REGISTRY_NAME

public static final java.lang.String DEFAULT_TRANSACTION_SYNCHRONIZATION_REGISTRY_NAME
Standard Java EE 5 JNDI location for the JTA TransactionSynchronizationRegistry. Autodetected when available.

See Also:
Constant Field Values
Constructor Detail

JtaTransactionManager

public JtaTransactionManager()
Create a new JtaTransactionManager instance, to be configured as bean. Invoke afterPropertiesSet to activate the configuration.

See Also:
setUserTransactionName(java.lang.String), setUserTransaction(javax.transaction.UserTransaction), setTransactionManagerName(java.lang.String), setTransactionManager(javax.transaction.TransactionManager), afterPropertiesSet()

JtaTransactionManager

public JtaTransactionManager(javax.transaction.UserTransaction userTransaction)
Create a new JtaTransactionManager instance.

Parameters:
userTransaction - the JTA UserTransaction to use as direct reference

JtaTransactionManager

public JtaTransactionManager(javax.transaction.UserTransaction userTransaction,
                             javax.transaction.TransactionManager transactionManager)
Create a new JtaTransactionManager instance.

Parameters:
userTransaction - the JTA UserTransaction to use as direct reference
transactionManager - the JTA TransactionManager to use as direct reference

JtaTransactionManager

public JtaTransactionManager(javax.transaction.TransactionManager transactionManager)
Create a new JtaTransactionManager instance.

Parameters:
transactionManager - the JTA TransactionManager to use as direct reference
Method Detail

setJndiTemplate

public void setJndiTemplate(JndiTemplate jndiTemplate)
Set the JndiTemplate to use for JNDI lookups. A default one is used if not set.


getJndiTemplate

public JndiTemplate getJndiTemplate()
Return the JndiTemplate used for JNDI lookups.


setJndiEnvironment

public void setJndiEnvironment(java.util.Properties jndiEnvironment)
Set the JNDI environment to use for JNDI lookups. Creates a JndiTemplate with the given environment settings.

See Also:
setJndiTemplate(org.springframework.jndi.JndiTemplate)

getJndiEnvironment

public java.util.Properties getJndiEnvironment()
Return the JNDI environment to use for JNDI lookups.


setUserTransaction

public void setUserTransaction(javax.transaction.UserTransaction userTransaction)
Set the JTA UserTransaction to use as direct reference.

Typically just used for local JTA setups; in a Java EE environment, the UserTransaction will always be fetched from JNDI.

See Also:
setUserTransactionName(java.lang.String), setAutodetectUserTransaction(boolean)

getUserTransaction

public javax.transaction.UserTransaction getUserTransaction()
Return the JTA UserTransaction that this transaction manager uses.


setUserTransactionName

public void setUserTransactionName(java.lang.String userTransactionName)
Set the JNDI name of the JTA UserTransaction.

Note that the UserTransaction will be autodetected at the Java EE default location "java:comp/UserTransaction" if not specified explicitly.

See Also:
DEFAULT_USER_TRANSACTION_NAME, setUserTransaction(javax.transaction.UserTransaction), setAutodetectUserTransaction(boolean)

setAutodetectUserTransaction

public void setAutodetectUserTransaction(boolean autodetectUserTransaction)
Set whether to autodetect the JTA UserTransaction at its default JNDI location "java:comp/UserTransaction", as specified by Java EE. Will proceed without UserTransaction if none found.

Default is "true", autodetecting the UserTransaction unless it has been specified explicitly. Turn this flag off to allow for JtaTransactionManager operating against the TransactionManager only, despite a default UserTransaction being available.

See Also:
DEFAULT_USER_TRANSACTION_NAME

setCacheUserTransaction

public void setCacheUserTransaction(boolean cacheUserTransaction)
Set whether to cache the JTA UserTransaction object fetched from JNDI.

Default is "true": UserTransaction lookup will only happen at startup, reusing the same UserTransaction handle for all transactions of all threads. This is the most efficient choice for all application servers that provide a shared UserTransaction object (the typical case).

Turn this flag off to enforce a fresh lookup of the UserTransaction for every transaction. This is only necessary for application servers that return a new UserTransaction for every transaction, keeping state tied to the UserTransaction object itself rather than the current thread.

See Also:
setUserTransactionName(java.lang.String)

setTransactionManager

public void setTransactionManager(javax.transaction.TransactionManager transactionManager)
Set the JTA TransactionManager to use as direct reference.

A TransactionManager is necessary for suspending and resuming transactions, as this not supported by the UserTransaction interface.

Note that the TransactionManager will be autodetected if the JTA UserTransaction object implements the JTA TransactionManager interface too, as well as autodetected at various well-known fallback JNDI locations.

See Also:
setTransactionManagerName(java.lang.String), setAutodetectTransactionManager(boolean)

getTransactionManager

public javax.transaction.TransactionManager getTransactionManager()
Return the JTA TransactionManager that this transaction manager uses.


setTransactionManagerName

public void setTransactionManagerName(java.lang.String transactionManagerName)
Set the JNDI name of the JTA TransactionManager.

A TransactionManager is necessary for suspending and resuming transactions, as this not supported by the UserTransaction interface.

Note that the TransactionManager will be autodetected if the JTA UserTransaction object implements the JTA TransactionManager interface too, as well as autodetected at various well-known fallback JNDI locations.

See Also:
setTransactionManager(javax.transaction.TransactionManager), setAutodetectTransactionManager(boolean)

setAutodetectTransactionManager

public void setAutodetectTransactionManager(boolean autodetectTransactionManager)
Set whether to autodetect a JTA UserTransaction object that implements the JTA TransactionManager interface too (i.e. the JNDI location for the TransactionManager is "java:comp/UserTransaction", same as for the UserTransaction). Also checks the fallback JNDI locations "java:comp/TransactionManager" and "java:/TransactionManager". Will proceed without TransactionManager if none found.

Default is "true", autodetecting the TransactionManager unless it has been specified explicitly. Can be turned off to deliberately ignore an available TransactionManager, for example when there are known issues with suspend/resume and any attempt to use REQUIRES_NEW or NOT_SUPPORTED should fail fast.

See Also:
FALLBACK_TRANSACTION_MANAGER_NAMES

setTransactionSynchronizationRegistryName

public void setTransactionSynchronizationRegistryName(java.lang.String transactionSynchronizationRegistryName)
Set the JNDI name of the JTA 1.1 TransactionSynchronizationRegistry.

Note that the TransactionSynchronizationRegistry will be autodetected at the Java EE 5 default location "java:comp/TransactionSynchronizationRegistry" if not specified explicitly.

See Also:
DEFAULT_TRANSACTION_SYNCHRONIZATION_REGISTRY_NAME

setAllowCustomIsolationLevels

public void setAllowCustomIsolationLevels(boolean allowCustomIsolationLevels)
Set whether to allow custom isolation levels to be specified.

Default is "false", throwing an exception if a non-default isolation level is specified for a transaction. Turn this flag on if affected resource adapters check the thread-bound transaction context and apply the specified isolation levels individually (e.g. through an IsolationLevelDataSourceAdapter).

See Also:
IsolationLevelDataSourceAdapter, IsolationLevelDataSourceRouter

afterPropertiesSet

public void afterPropertiesSet()
                        throws TransactionSystemException
Initialize the UserTransaction as well as the TransactionManager handle.

Specified by:
afterPropertiesSet in interface InitializingBean
Throws:
TransactionSystemException
See Also:
initUserTransactionAndTransactionManager()

initUserTransactionAndTransactionManager

protected void initUserTransactionAndTransactionManager()
                                                 throws TransactionSystemException
Initialize the UserTransaction as well as the TransactionManager handle.

Throws:
TransactionSystemException - if initialization failed

checkUserTransactionAndTransactionManager

protected void checkUserTransactionAndTransactionManager()
                                                  throws java.lang.IllegalStateException
Check the UserTransaction as well as the TransactionManager handle, assuming standard JTA requirements.

Throws:
java.lang.IllegalStateException - if no sufficient handles are available

initTransactionSynchronizationRegistry

protected void initTransactionSynchronizationRegistry()
Initialize the JTA 1.1 TransactionSynchronizationRegistry, if available.

To be called after initUserTransactionAndTransactionManager(), since it may check the UserTransaction and TransactionManager handles.

Throws:
TransactionSystemException - if initialization failed

buildUserTransaction

protected javax.transaction.UserTransaction buildUserTransaction(javax.transaction.TransactionManager transactionManager)
Build a UserTransaction handle based on the given TransactionManager.

Parameters:
transactionManager - the TransactionManager
Returns:
a corresponding UserTransaction handle

lookupUserTransaction

protected javax.transaction.UserTransaction lookupUserTransaction(java.lang.String userTransactionName)
                                                           throws TransactionSystemException
Look up the JTA UserTransaction in JNDI via the configured name.

Called by afterPropertiesSet if no direct UserTransaction reference was set. Can be overridden in subclasses to provide a different UserTransaction object.

Parameters:
userTransactionName - the JNDI name of the UserTransaction
Returns:
the UserTransaction object
Throws:
TransactionSystemException - if the JNDI lookup failed
See Also:
setJndiTemplate(org.springframework.jndi.JndiTemplate), setUserTransactionName(java.lang.String)

lookupTransactionManager

protected javax.transaction.TransactionManager lookupTransactionManager(java.lang.String transactionManagerName)
                                                                 throws TransactionSystemException
Look up the JTA TransactionManager in JNDI via the configured name.

Called by afterPropertiesSet if no direct TransactionManager reference was set. Can be overridden in subclasses to provide a different TransactionManager object.

Parameters:
transactionManagerName - the JNDI name of the TransactionManager
Returns:
the UserTransaction object
Throws:
TransactionSystemException - if the JNDI lookup failed
See Also:
setJndiTemplate(org.springframework.jndi.JndiTemplate), setTransactionManagerName(java.lang.String)

lookupTransactionSynchronizationRegistry

protected java.lang.Object lookupTransactionSynchronizationRegistry(java.lang.String registryName)
                                                             throws TransactionSystemException
Look up the JTA 1.1 TransactionSynchronizationRegistry in JNDI via the configured name.

Can be overridden in subclasses to provide a different TransactionManager object.

Parameters:
registryName - the JNDI name of the TransactionSynchronizationRegistry
Returns:
the TransactionSynchronizationRegistry object
Throws:
TransactionSystemException - if the JNDI lookup failed
See Also:
setJndiTemplate(org.springframework.jndi.JndiTemplate), setTransactionSynchronizationRegistryName(java.lang.String)

retrieveUserTransaction

protected javax.transaction.UserTransaction retrieveUserTransaction()
                                                             throws TransactionSystemException
Allows subclasses to retrieve the JTA UserTransaction in a vendor-specific manner. Only called if no "userTransaction" or "userTransactionName" specified.

The default implementation simply returns null.

Returns:
the JTA UserTransaction handle to use, or null if none found
Throws:
TransactionSystemException - in case of errors
See Also:
setUserTransaction(javax.transaction.UserTransaction), setUserTransactionName(java.lang.String)

retrieveTransactionManager

protected javax.transaction.TransactionManager retrieveTransactionManager()
                                                                   throws TransactionSystemException
Allows subclasses to retrieve the JTA TransactionManager in a vendor-specific manner. Only called if no "transactionManager" or "transactionManagerName" specified.

The default implementation simply returns null.

Returns:
the JTA TransactionManager handle to use, or null if none found
Throws:
TransactionSystemException - in case of errors
See Also:
setTransactionManager(javax.transaction.TransactionManager), setTransactionManagerName(java.lang.String)

retrieveTransactionSynchronizationRegistry

protected java.lang.Object retrieveTransactionSynchronizationRegistry()
                                                               throws TransactionSystemException
Allows subclasses to retrieve the JTA 1.1 TransactionSynchronizationRegistry in a vendor-specific manner.

The default implementation simply returns null.

Returns:
the JTA TransactionSynchronizationRegistry handle to use, or null if none found
Throws:
TransactionSystemException - in case of errors

findUserTransaction

protected javax.transaction.UserTransaction findUserTransaction()
Find the JTA UserTransaction through a default JNDI lookup: "java:comp/UserTransaction".

Returns:
the JTA UserTransaction reference, or null if not found
See Also:
DEFAULT_USER_TRANSACTION_NAME

findTransactionManager

protected javax.transaction.TransactionManager findTransactionManager(javax.transaction.UserTransaction ut)
Find the JTA TransactionManager through autodetection: checking whether the UserTransaction object implements the TransactionManager, and checking the fallback JNDI locations.

Parameters:
ut - the JTA UserTransaction object
Returns:
the JTA TransactionManager reference, or null if not found
See Also:
FALLBACK_TRANSACTION_MANAGER_NAMES

findTransactionSynchronizationRegistry

protected java.lang.Object findTransactionSynchronizationRegistry(javax.transaction.UserTransaction ut,
                                                                  javax.transaction.TransactionManager tm)
                                                           throws TransactionSystemException
Find the JTA 1.1 TransactionSynchronizationRegistry through autodetection: checking whether the UserTransaction object or TransactionManager object implements it, and checking Java EE 5's standard JNDI location.

The default implementation simply returns null.

Parameters:
ut - the JTA UserTransaction object
tm - the JTA TransactionManager object
Returns:
the JTA TransactionSynchronizationRegistry handle to use, or null if none found
Throws:
TransactionSystemException - in case of errors

doGetTransaction

protected java.lang.Object doGetTransaction()
This implementation returns a JtaTransactionObject instance for the JTA UserTransaction.

The UserTransaction object will either be looked up freshly for the current transaction, or the cached one looked up at startup will be used. The latter is the default: Most application servers use a shared singleton UserTransaction that can be cached. Turn off the "cacheUserTransaction" flag to enforce a fresh lookup for every transaction.

Specified by:
doGetTransaction in class AbstractPlatformTransactionManager
Returns:
the current transaction object
See Also:
setCacheUserTransaction(boolean)

doGetJtaTransaction

protected JtaTransactionObject doGetJtaTransaction(javax.transaction.UserTransaction ut)
Get a JTA transaction object for the given current UserTransaction.

Subclasses can override this to provide a JtaTransactionObject subclass, for example holding some additional JTA handle needed.

Parameters:
ut - the UserTransaction handle to use for the current transaction
Returns:
the JtaTransactionObject holding the UserTransaction

isExistingTransaction

protected boolean isExistingTransaction(java.lang.Object transaction)
Description copied from class: AbstractPlatformTransactionManager
Check if the given transaction object indicates an existing transaction (that is, a transaction which has already started).

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.

Overrides:
isExistingTransaction in class AbstractPlatformTransactionManager
Parameters:
transaction - transaction object returned by doGetTransaction
Returns:
if there is an existing transaction
See Also:
AbstractPlatformTransactionManager.doGetTransaction()

useSavepointForNestedTransaction

protected boolean useSavepointForNestedTransaction()
This implementation returns false to cause a further invocation of doBegin despite an already existing transaction.

JTA implementations might support nested transactions via further UserTransaction.begin() invocations, but never support savepoints.

Overrides:
useSavepointForNestedTransaction in class AbstractPlatformTransactionManager
See Also:
doBegin(java.lang.Object, org.springframework.transaction.TransactionDefinition), UserTransaction.begin()

doBegin

protected void doBegin(java.lang.Object transaction,
                       TransactionDefinition definition)
Description copied from class: AbstractPlatformTransactionManager
Begin a new transaction with semantics according to the given transaction definition. Does not have to care about applying the propagation behavior, as this has already been handled by this abstract manager.

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.

Specified by:
doBegin in class AbstractPlatformTransactionManager
Parameters:
transaction - transaction object returned by doGetTransaction
definition - TransactionDefinition instance, describing propagation behavior, isolation level, read-only flag, timeout, and transaction name

doJtaBegin

protected void doJtaBegin(JtaTransactionObject txObject,
                          TransactionDefinition definition)
                   throws javax.transaction.NotSupportedException,
                          javax.transaction.SystemException
Perform a JTA begin on the JTA UserTransaction or TransactionManager.

This implementation only supports standard JTA functionality: that is, no per-transaction isolation levels and no transaction names. Can be overridden in subclasses, for specific JTA implementations.

Calls applyIsolationLevel and applyTimeout before invoking the UserTransaction's begin method.

Parameters:
txObject - the JtaTransactionObject containing the UserTransaction
definition - TransactionDefinition instance, describing propagation behavior, isolation level, read-only flag, timeout, and transaction name
Throws:
javax.transaction.NotSupportedException - if thrown by JTA methods
javax.transaction.SystemException - if thrown by JTA methods
See Also:
getUserTransaction(), getTransactionManager(), applyIsolationLevel(org.springframework.transaction.jta.JtaTransactionObject, int), applyTimeout(org.springframework.transaction.jta.JtaTransactionObject, int), JtaTransactionObject.getUserTransaction(), UserTransaction.setTransactionTimeout(int), UserTransaction.begin()

applyIsolationLevel

protected void applyIsolationLevel(JtaTransactionObject txObject,
                                   int isolationLevel)
                            throws InvalidIsolationLevelException,
                                   javax.transaction.SystemException
Apply the given transaction isolation level. The default implementation will throw an exception for any level other than ISOLATION_DEFAULT.

To be overridden in subclasses for specific JTA implementations, as alternative to overriding the full doJtaBegin(org.springframework.transaction.jta.JtaTransactionObject, org.springframework.transaction.TransactionDefinition) method.

Parameters:
txObject - the JtaTransactionObject containing the UserTransaction
isolationLevel - isolation level taken from transaction definition
Throws:
InvalidIsolationLevelException - if the given isolation level cannot be applied
javax.transaction.SystemException - if thrown by the JTA implementation
See Also:
doJtaBegin(org.springframework.transaction.jta.JtaTransactionObject, org.springframework.transaction.TransactionDefinition), JtaTransactionObject.getUserTransaction(), getTransactionManager()

applyTimeout

protected void applyTimeout(JtaTransactionObject txObject,
                            int timeout)
                     throws javax.transaction.SystemException
Apply the given transaction timeout. The default implementation will call UserTransaction.setTransactionTimeout for a non-default timeout value.

Parameters:
txObject - the JtaTransactionObject containing the UserTransaction
timeout - timeout value taken from transaction definition
Throws:
javax.transaction.SystemException - if thrown by the JTA implementation
See Also:
doJtaBegin(org.springframework.transaction.jta.JtaTransactionObject, org.springframework.transaction.TransactionDefinition), JtaTransactionObject.getUserTransaction(), UserTransaction.setTransactionTimeout(int)

doSuspend

protected java.lang.Object doSuspend(java.lang.Object transaction)
Description copied from class: AbstractPlatformTransactionManager
Suspend the resources of the current transaction. Transaction synchronization will already have been suspended.

The default implementation throws a TransactionSuspensionNotSupportedException, assuming that transaction suspension is generally not supported.

Overrides:
doSuspend in class AbstractPlatformTransactionManager
Parameters:
transaction - transaction object returned by doGetTransaction
Returns:
an object that holds suspended resources (will be kept unexamined for passing it into doResume)
See Also:
AbstractPlatformTransactionManager.doResume(java.lang.Object, java.lang.Object)

doJtaSuspend

protected java.lang.Object doJtaSuspend(JtaTransactionObject txObject)
                                 throws javax.transaction.SystemException
Perform a JTA suspend on the JTA TransactionManager.

Can be overridden in subclasses, for specific JTA implementations.

Parameters:
txObject - the JtaTransactionObject containing the UserTransaction
Returns:
the suspended JTA Transaction object
Throws:
javax.transaction.SystemException - if thrown by JTA methods
See Also:
getTransactionManager(), TransactionManager.suspend()

doResume

protected void doResume(java.lang.Object transaction,
                        java.lang.Object suspendedResources)
Description copied from class: AbstractPlatformTransactionManager
Resume the resources of the current transaction. Transaction synchronization will be resumed afterwards.

The default implementation throws a TransactionSuspensionNotSupportedException, assuming that transaction suspension is generally not supported.

Overrides:
doResume in class AbstractPlatformTransactionManager
Parameters:
transaction - transaction object returned by doGetTransaction
suspendedResources - the object that holds suspended resources, as returned by doSuspend
See Also:
AbstractPlatformTransactionManager.doSuspend(java.lang.Object)

doJtaResume

protected void doJtaResume(JtaTransactionObject txObject,
                           java.lang.Object suspendedTransaction)
                    throws javax.transaction.InvalidTransactionException,
                           javax.transaction.SystemException
Perform a JTA resume on the JTA TransactionManager.

Can be overridden in subclasses, for specific JTA implementations.

Parameters:
txObject - the JtaTransactionObject containing the UserTransaction
suspendedTransaction - the suspended JTA Transaction object
Throws:
javax.transaction.InvalidTransactionException - if thrown by JTA methods
javax.transaction.SystemException - if thrown by JTA methods
See Also:
getTransactionManager(), TransactionManager.resume(javax.transaction.Transaction)

shouldCommitOnGlobalRollbackOnly

protected boolean shouldCommitOnGlobalRollbackOnly()
This implementation returns "true": a JTA commit will properly handle transactions that have been marked rollback-only at a global level.

Overrides:
shouldCommitOnGlobalRollbackOnly in class AbstractPlatformTransactionManager
See Also:
AbstractPlatformTransactionManager.doCommit(org.springframework.transaction.support.DefaultTransactionStatus), DefaultTransactionStatus.isGlobalRollbackOnly(), AbstractTransactionStatus.isLocalRollbackOnly(), TransactionStatus.setRollbackOnly(), UnexpectedRollbackException, UserTransaction.commit(), RollbackException

doCommit

protected void doCommit(DefaultTransactionStatus status)
Description copied from class: AbstractPlatformTransactionManager
Perform an actual commit of the given transaction.

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.

Specified by:
doCommit in class AbstractPlatformTransactionManager
Parameters:
status - the status representation of the transaction
See Also:
DefaultTransactionStatus.getTransaction()

doRollback

protected void doRollback(DefaultTransactionStatus status)
Description copied from class: AbstractPlatformTransactionManager
Perform an actual rollback of the given transaction.

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.

Specified by:
doRollback in class AbstractPlatformTransactionManager
Parameters:
status - the status representation of the transaction
See Also:
DefaultTransactionStatus.getTransaction()

doSetRollbackOnly

protected void doSetRollbackOnly(DefaultTransactionStatus status)
Description copied from class: AbstractPlatformTransactionManager
Set the given transaction rollback-only. Only called on rollback if the current transaction participates in an existing one.

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.

Overrides:
doSetRollbackOnly in class AbstractPlatformTransactionManager
Parameters:
status - the status representation of the transaction

registerAfterCompletionWithExistingTransaction

protected void registerAfterCompletionWithExistingTransaction(java.lang.Object transaction,
                                                              java.util.List<TransactionSynchronization> synchronizations)
Description copied from class: AbstractPlatformTransactionManager
Register the given list of transaction synchronizations with the existing transaction.

Invoked when the control of the Spring transaction manager and thus all Spring transaction synchronizations end, without the transaction being completed yet. This is for example the case when participating in an existing JTA or EJB CMT transaction.

The default implementation simply invokes the afterCompletion methods immediately, passing in "STATUS_UNKNOWN". This is the best we can do if there's no chance to determine the actual outcome of the outer transaction.

Overrides:
registerAfterCompletionWithExistingTransaction in class AbstractPlatformTransactionManager
Parameters:
transaction - transaction object returned by doGetTransaction
synchronizations - List of TransactionSynchronization objects
See Also:
AbstractPlatformTransactionManager.invokeAfterCompletion(java.util.List, int), TransactionSynchronization.afterCompletion(int), TransactionSynchronization.STATUS_UNKNOWN

doRegisterAfterCompletionWithJtaTransaction

protected void doRegisterAfterCompletionWithJtaTransaction(JtaTransactionObject txObject,
                                                           java.util.List<TransactionSynchronization> synchronizations)
                                                    throws javax.transaction.RollbackException,
                                                           javax.transaction.SystemException
Register a JTA synchronization on the JTA TransactionManager, for calling afterCompletion on the given Spring TransactionSynchronizations.

The default implementation registers the synchronizations on the JTA 1.1 TransactionSynchronizationRegistry, if available, or on the JTA TransactionManager's current Transaction - again, if available. If none of the two is available, a warning will be logged.

Can be overridden in subclasses, for specific JTA implementations.

Parameters:
txObject - the current transaction object
synchronizations - List of TransactionSynchronization objects
Throws:
javax.transaction.RollbackException - if thrown by JTA methods
javax.transaction.SystemException - if thrown by JTA methods
See Also:
getTransactionManager(), Transaction.registerSynchronization(javax.transaction.Synchronization), TransactionSynchronizationRegistry.registerInterposedSynchronization(javax.transaction.Synchronization)

createTransaction

public javax.transaction.Transaction createTransaction(java.lang.String name,
                                                       int timeout)
                                                throws javax.transaction.NotSupportedException,
                                                       javax.transaction.SystemException
Description copied from interface: TransactionFactory
Create an active Transaction object based on the given name and timeout.

Specified by:
createTransaction in interface TransactionFactory
Parameters:
name - the transaction name (may be null)
timeout - the transaction timeout (may be -1 for the default timeout)
Returns:
the active Transaction object (never null)
Throws:
javax.transaction.NotSupportedException - if the transaction manager does not support a transaction of the specified type
javax.transaction.SystemException - if the transaction manager failed to create the transaction

supportsResourceAdapterManagedTransactions

public boolean supportsResourceAdapterManagedTransactions()
Description copied from interface: TransactionFactory
Determine whether the underlying transaction manager supports XA transactions managed by a resource adapter (i.e. without explicit XA resource enlistment).

Typically false. Checked by AbstractMessageEndpointFactory in order to differentiate between invalid configuration and valid ResourceAdapter-managed transactions.

Specified by:
supportsResourceAdapterManagedTransactions in interface TransactionFactory
See Also:
ResourceAdapter.endpointActivation(javax.resource.spi.endpoint.MessageEndpointFactory, javax.resource.spi.ActivationSpec), MessageEndpointFactory.isDeliveryTransacted(java.lang.reflect.Method)

Spring Framework