Module jakarta.messaging

Package jakarta.jms

Interface XAJMSContext

All Superinterfaces:

AutoCloseable, JMSContext

public interface XAJMSContext
extends JMSContext

The XAJMSContext interface extends the capability of JMSContext by adding access to a Jakarta Messaging provider's support for the Java Transaction API (JTA) (optional). This support takes the form of a javax.transaction.xa.XAResource object. The functionality of this object closely resembles that defined by the standard X/Open XA Resource interface.

An application server controls the transactional assignment of an XASession by obtaining its XAResource. It uses the XAResource to assign the session to a transaction, prepare and commit work on the transaction, and so on.

An XAResource provides some fairly sophisticated facilities for interleaving work on multiple transactions, recovering a list of transactions in progress, and so on. A JTA aware Jakarta Messaging provider must fully implement this functionality. This could be done by using the services of a database that supports XA, or a Jakarta Messaging provider may choose to implement this functionality from scratch.

A client of the application server is given what it thinks is an ordinary JMSContext. Behind the scenes, the application server controls the transaction management of the underlying XAJMSContext.

The XAJMSContext interface is optional. Jakarta Messaging providers are not required to support this interface. This interface is for use by Jakarta Messaging providers to support transactional environments. Client programs are strongly encouraged to use the transactional support available in their environment, rather than use these XA interfaces directly.

Since:

JMS 2.0

Version:

Jakarta Messaging 2.0

Field Summary

Fields inherited from interface jakarta.jms.JMSContext

AUTO_ACKNOWLEDGE, CLIENT_ACKNOWLEDGE, DUPS_OK_ACKNOWLEDGE, SESSION_TRANSACTED

Method Summary

Modifier and Type	Method	Description
void	commit()	Throws a TransactionInProgressRuntimeException, since it should not be called for an XAJMSContext object.
JMSContext	getContext()	Returns the JMSContext object associated with this XAJMSContext.
boolean	getTransacted()	Returns whether the session is in transacted mode; this method always returns true.
XAResource	getXAResource()	Returns an XAResource to the caller.
void	rollback()	Throws a TransactionInProgressRuntimeException, since it should not be called for an XAJMSContext object.

Methods inherited from interface jakarta.jms.JMSContext

acknowledge, close, createBrowser, createBrowser, createBytesMessage, createConsumer, createConsumer, createConsumer, createContext, createDurableConsumer, createDurableConsumer, createMapMessage, createMessage, createObjectMessage, createObjectMessage, createProducer, createQueue, createSharedConsumer, createSharedConsumer, createSharedDurableConsumer, createSharedDurableConsumer, createStreamMessage, createTemporaryQueue, createTemporaryTopic, createTextMessage, createTextMessage, createTopic, getAutoStart, getClientID, getExceptionListener, getMetaData, getSessionMode, recover, setAutoStart, setClientID, setExceptionListener, start, stop, unsubscribe

Method Detail

getContext

JMSContext getContext()

Returns the JMSContext object associated with this XAJMSContext.

Returns:

the JMSContext object associated with this XAJMSContext

getXAResource

XAResource getXAResource()

Returns an XAResource to the caller.

Returns:

an XAResource

getTransacted

boolean getTransacted()

Returns whether the session is in transacted mode; this method always returns true.

Specified by:

getTransacted in interface JMSContext

Returns:

true

commit

void commit()

Throws a TransactionInProgressRuntimeException, since it should not be called for an XAJMSContext object.

Specified by:

commit in interface JMSContext

Throws:

TransactionInProgressRuntimeException - if the method is called on an XAJMSContext.

rollback

void rollback()

Throws a TransactionInProgressRuntimeException, since it should not be called for an XAJMSContext object.

Specified by:

rollback in interface JMSContext

Throws:

TransactionInProgressRuntimeException - if the method is called on an XAJMSContext.