Class JTATransactionController
- All Implemented Interfaces:
ExternalTransactionController
- Direct Known Subclasses:
GlassfishTransactionController
,JBossTransactionController
,JotmTransactionController
,JTA11TransactionController
,SAPNetWeaverTransactionController
,WebLogicTransactionController
,WebSphereTransactionController
,WildFlyTransactionController
Purpose: TransactionController implementation for JTA 1.0
Description: Implements the required behavior for controlling JTA 1.0 transactions. Specific JTA implementations may need to extend this class when special controller behavior is necessary.
The JTA TransactionManager must be obtained and set on the instance in order for a Synchronization listener to be registered against the transaction. This can be done either by extending this class and defining acquireTransactionManager() to return the manager for the server, or by using this class and explicitly calling the setTransactionManager() method on it after the fact. e.g. TransactionManager mgr = controller.jndiLookup("java:comp/TransactionManager"); controller.setTransactionManager(mgr);
If a different listener needs to be used for synchronization, the SynchronizationListenerFactory should be set on the controller instance. The listener subclass should implement the factory interface, so that setting the factory is simply a matter of assigning an instance of the listener. e.g. controller.setSynchronizationListenerFactory( new DifferentServerSynchronizationListener()); The default listener factory creates instances of JTATransactionListener.
- See Also:
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Field Summary
Modifier and TypeFieldDescriptionprotected static TransactionManager
protected TransactionManager
Fields inherited from class org.eclipse.persistence.transaction.AbstractTransactionController
activeUnitOfWorkThreadLocal, currentlyProcessedListeners, exceptionHandler, listenerFactory, numSessionsRequiringSequencingCallback, sequencingListeners, session, unitsOfWork
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Constructor Summary
ConstructorDescriptionPUBLIC: Return a new controller for use with a JTA 1.0 compliant TransactionManager.JTATransactionController
(TransactionManager transactionManager) PUBLIC: Return a new controller for use with a JTA 1.0 compliant TransactionManager. -
Method Summary
Modifier and TypeMethodDescriptionprotected TransactionManager
INTERNAL: Obtain and return the JTA TransactionManager on this platform.protected void
INTERNAL: Begin an external transaction.protected boolean
canBeginTransaction_impl
(Object status) INTERNAL: Return true if the status indicates that a transaction can be started.protected boolean
canCommitTransaction_impl
(Object status) INTERNAL: Return true if the status indicates that a transaction can be committed.protected boolean
canIssueSQLToDatabase_impl
(Object status) INTERNAL: Return true if the status indicates that the SQL should be issued to the db.protected boolean
canMergeUnitOfWork_impl
(Object status) INTERNAL: Return true if the status indicates that the unit of work should be merged into the shared cache.protected boolean
canRollbackTransaction_impl
(Object status) INTERNAL: Return true if the status indicates that a transaction can be rolled back.protected void
INTERNAL: Commit the external transaction.static TransactionManager
protected int
getIntStatus
(Object status) INTERNAL: Convenience method to return the int value of the transaction status.protected Object
INTERNAL: Return the active external transaction, or null if none is currently active for this thread.protected Object
getTransactionKey_impl
(Object transaction) INTERNAL: Return a key for the specified external transaction object.PUBLIC: Return the transaction manager used to control the JTA transactions.protected Object
INTERNAL: Return the transaction status as an object.boolean
isRolledBack_impl
(Object status) INTERNAL: Return true if the transaction is rolled back.protected void
INTERNAL: Mark the external transaction for rollback.protected void
registerSynchronization_impl
(AbstractSynchronizationListener listener, Object txn) INTERNAL: Register the specified synchronization listener with the given active transaction.protected void
INTERNAL: Roll back the external transaction.static void
setDefaultTransactionManager
(TransactionManager defaultTransactionManager) PUBLIC: Set the JTA transaction manager to be used.void
PUBLIC: Set the transaction manager used to control the JTA transactions.protected String
statusToString_impl
(Object status) INTERNAL: Convert the status to a string for tracing.Methods inherited from class org.eclipse.persistence.transaction.AbstractTransactionController
addUnitOfWork, beginTransaction, bindToCurrentTransaction, clearSequencingListeners, commitTransaction, getActiveSequencingCallback, getActiveUnitOfWork, getExceptionHandler, getListenerFactory, getSession, getTransaction, getTransactionKey, getTransactionStatus, getUnitsOfWork, hasActiveUnitOfWork, initializeSequencingListeners, isSequencingCallbackRequired, jndiLookup, logTxStateTrace, logTxTrace, lookupActiveUnitOfWork, lookupActiveUnitOfWork, markTransactionForRollback, noTransactionOrRolledBackOrCommited, numSessionsRequiringSequencingCallback, registerSynchronizationListener, removeSequencingListener, removeUnitOfWork, rollbackTransaction, setExceptionHandler, setListenerFactory, setSession, setUnitsOfWork
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Field Details
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defaultTransactionManager
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transactionManager
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Constructor Details
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JTATransactionController
public JTATransactionController()PUBLIC: Return a new controller for use with a JTA 1.0 compliant TransactionManager. -
JTATransactionController
PUBLIC: Return a new controller for use with a JTA 1.0 compliant TransactionManager.
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Method Details
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registerSynchronization_impl
protected void registerSynchronization_impl(AbstractSynchronizationListener listener, Object txn) throws Exception INTERNAL: Register the specified synchronization listener with the given active transaction.- Specified by:
registerSynchronization_impl
in classAbstractTransactionController
- Parameters:
listener
- The synchronization listener created for this transactiontxn
- The active transaction for which notification is being requested- Throws:
Exception
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getTransaction_impl
INTERNAL: Return the active external transaction, or null if none is currently active for this thread.- Specified by:
getTransaction_impl
in classAbstractTransactionController
- Returns:
- The active transaction object or id, or null if no transaction is active
- Throws:
Exception
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getTransactionKey_impl
INTERNAL: Return a key for the specified external transaction object. The key is just something that can be inserted into a hashtable (must support hashCode() and equals() methods).- Specified by:
getTransactionKey_impl
in classAbstractTransactionController
- Parameters:
transaction
- The transaction to which the returned key applies (may be null)- Returns:
- A key for the passed in transaction, or null if no transaction specified
- Throws:
Exception
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getTransactionStatus_impl
INTERNAL: Return the transaction status as an object. We will pass around Integers that wrap the int JTA status values.- Specified by:
getTransactionStatus_impl
in classAbstractTransactionController
- Returns:
- The current transaction status
- Throws:
Exception
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beginTransaction_impl
INTERNAL: Begin an external transaction.- Specified by:
beginTransaction_impl
in classAbstractTransactionController
- Throws:
Exception
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commitTransaction_impl
INTERNAL: Commit the external transaction.- Specified by:
commitTransaction_impl
in classAbstractTransactionController
- Throws:
Exception
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rollbackTransaction_impl
INTERNAL: Roll back the external transaction.- Specified by:
rollbackTransaction_impl
in classAbstractTransactionController
- Throws:
Exception
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markTransactionForRollback_impl
INTERNAL: Mark the external transaction for rollback.- Specified by:
markTransactionForRollback_impl
in classAbstractTransactionController
- Throws:
Exception
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canBeginTransaction_impl
INTERNAL: Return true if the status indicates that a transaction can be started. This would normally mean that no transaction is currently active.- Specified by:
canBeginTransaction_impl
in classAbstractTransactionController
- Parameters:
status
- The current transaction status- Returns:
- true if the current state allows for a transaction to be started
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canCommitTransaction_impl
INTERNAL: Return true if the status indicates that a transaction can be committed. This would normally mean that a transaction is currently active.- Specified by:
canCommitTransaction_impl
in classAbstractTransactionController
- Parameters:
status
- The current transaction status- Returns:
- true if the current state allows for a transaction to be committed
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canRollbackTransaction_impl
INTERNAL: Return true if the status indicates that a transaction can be rolled back. This would normally mean that a transaction is currently active.- Specified by:
canRollbackTransaction_impl
in classAbstractTransactionController
- Parameters:
status
- The current transaction status- Returns:
- true if the current state allows for a transaction to be rolled back
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canIssueSQLToDatabase_impl
INTERNAL: Return true if the status indicates that the SQL should be issued to the db. This would normally mean that a transaction was active.- Specified by:
canIssueSQLToDatabase_impl
in classAbstractTransactionController
- Parameters:
status
- The current transaction status- Returns:
- true if the current state allows for the SQL to be sent to the database
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canMergeUnitOfWork_impl
INTERNAL: Return true if the status indicates that the unit of work should be merged into the shared cache. This would normally mean that the transaction was committed successfully.- Specified by:
canMergeUnitOfWork_impl
in classAbstractTransactionController
- Parameters:
status
- The current transaction status- Returns:
- true if the current state dictates that the unit of work should be merged
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isRolledBack_impl
INTERNAL: Return true if the transaction is rolled back.- Specified by:
isRolledBack_impl
in classAbstractTransactionController
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acquireTransactionManager
INTERNAL: Obtain and return the JTA TransactionManager on this platform. By default try java:comp JNDI lookup. This method can be can be overridden by subclasses to obtain the transaction manager by whatever means is appropriate to the server. This method is invoked by the constructor to initialize the transaction manager at instance-creation time. Alternatively the transaction manager can be set directly on the controller instance using the setTransactionManager() method after the instance has been created.- Returns:
- The TransactionManager for the transaction system
- Throws:
Exception
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getIntStatus
INTERNAL: Convenience method to return the int value of the transaction status. Assumes that the status object is an Integer. -
getTransactionManager
PUBLIC: Return the transaction manager used to control the JTA transactions.- Returns:
- The JTA TransactionManager that is used to obtain transaction state information and control the active transaction.
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setTransactionManager
PUBLIC: Set the transaction manager used to control the JTA transactions.- Parameters:
mgr
- A valid JTA TransactionManager that can be accessed by this controller to obtain transaction state information and control the active transaction.
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statusToString_impl
Description copied from class:AbstractTransactionController
INTERNAL: Convert the status to a string for tracing.- Specified by:
statusToString_impl
in classAbstractTransactionController
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getDefaultTransactionManager
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setDefaultTransactionManager
PUBLIC: Set the JTA transaction manager to be used. This can be called directly before login to configure JTA integration manually, or using Spring injection.
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