Module io.helidon.integrations.jta.weld

Package io.helidon.integrations.jta.weld

Class NarayanaTransactionServices

java.lang.Object

io.helidon.integrations.jta.weld.NarayanaTransactionServices

All Implemented Interfaces:

Service, TransactionServices

public final class NarayanaTransactionServices
extends Object
implements TransactionServices

A TransactionServices implementation that uses the Narayana transaction engine and does not use JNDI.

TransactionServices implementations are used by Weld for transactional observer notification as well as for providing the implementation backing the built-in UserTransaction CDI bean.

See Also:

• TransactionServices

Constructor Summary

Constructors

Constructor	Description
NarayanaTransactionServices()	Deprecated. Only intended for service loader, do not instantiate

Method Summary

Modifier and Type	Method	Description
void	cleanup()	Releases any internal resources acquired during the lifespan of this object.
UserTransaction	getUserTransaction()	Returns the UserTransaction present in this environment by invoking the UserTransaction.userTransaction() method and returning its result.
boolean	isTransactionActive()	Returns true if the current Transaction has a status indicating that it is active.
void	registerSynchronization(Synchronization synchronization)	Registers the supplied Synchronization with the current Transaction.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

NarayanaTransactionServices

@Deprecated
public NarayanaTransactionServices()

Deprecated.

Only intended for service loader, do not instantiate

Creates a new NarayanaTransactionServices.

Method Details

getUserTransaction

public UserTransaction getUserTransaction()

Returns the UserTransaction present in this environment by invoking the UserTransaction.userTransaction() method and returning its result.

This method never returns null.

The return value of this method is used as the backing implementation of the built-in UserTransaction CDI bean.

Specified by:

getUserTransaction in interface TransactionServices

Returns:

the non-null UserTransaction present in this environment

See Also:

• UserTransaction.userTransaction()

isTransactionActive

public boolean isTransactionActive()

Returns true if the current Transaction has a status indicating that it is active.

This method returns true if the current Transaction has a status equal to one of the following values:

• Status.STATUS_ACTIVE
• Status.STATUS_COMMITTING
• Status.STATUS_MARKED_ROLLBACK
• Status.STATUS_PREPARED
• Status.STATUS_PREPARING
• Status.STATUS_ROLLING_BACK

Specified by:

isTransactionActive in interface TransactionServices

Returns:

true if the current Transaction has a status indicating that it is active; false otherwise

Throws:

RuntimeException - if an invocation of the Transaction.getStatus() method resulted in a SystemException

See Also:

• Status

registerSynchronization

public void registerSynchronization(Synchronization synchronization)

Registers the supplied Synchronization with the current Transaction.

Specified by:

registerSynchronization in interface TransactionServices

Throws:

RuntimeException - if an invocation of the TransactionManager.getTransaction() method resulted in a SystemException, or if an invocation of the Transaction.registerSynchronization(Synchronization) method resulted in either a SystemException or a RollbackException

See Also:

• Transaction.registerSynchronization(Synchronization)

cleanup

public void cleanup()

Releases any internal resources acquired during the lifespan of this object.

Specified by:

cleanup in interface Service