weblogic.transaction

Class TransactionHelper

java.lang.Object

weblogic.transaction.TransactionHelper

public abstract class TransactionHelper
extends Object

Helper for managing transactions required by higher-level functionality. This class is a convenience wrapper for gaining access to objects and resources related to the transaction manager, on both client and server processes.

Method Summary

Modifier and Type	Method and Description
Transaction	getTransaction() Gets the transaction associated with this thread.
static TransactionHelper	getTransactionHelper() Get the TransactionHelper singleton.
abstract ClientTransactionManager	getTransactionManager() Return an implementation of TransactionManager suitable for use in the current client.
abstract UserTransaction	getUserTransaction() Return an implementation of UserTransaction suitable for use in the current client.
static TransactionHelper	popTransactionHelper() Pop the TransactionHelper singleton.
static void	pushTransactionHelper(TransactionHelper helper) Push the TransactionHelper singleton.
static void	setTransactionHelper(TransactionHelper helper) Set the TransactionHelper singleton.

Methods inherited from class java.lang.Object

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

Method Detail

getTransactionHelper

public static TransactionHelper getTransactionHelper()

Get the TransactionHelper singleton.

Returns:

A suitable TransactionHelper implementation for client or server.

setTransactionHelper

public static void setTransactionHelper(TransactionHelper helper)

Set the TransactionHelper singleton. This should be set at startup and not synchronized.

Parameters:

helper - - a suitable TransactionHelper implementation for client or server.

pushTransactionHelper

public static void pushTransactionHelper(TransactionHelper helper)

Push the TransactionHelper singleton. This does nothing in a server since there only can ever be one TM.

Parameters:

helper - - a suitable TransactionHelper implementation for client or server.

popTransactionHelper

public static TransactionHelper popTransactionHelper()
                                              throws EmptyStackException

Pop the TransactionHelper singleton. This does nothing in a server since there only can ever be one TM.

Throws:

EmptyStackException

getUserTransaction

public abstract UserTransaction getUserTransaction()

Return an implementation of UserTransaction suitable for use in the current client.

See Also:

UserTransaction

getTransactionManager

public abstract ClientTransactionManager getTransactionManager()

Return an implementation of TransactionManager suitable for use in the current client.

See Also:

TransactionManager

getTransaction

public Transaction getTransaction()

Gets the transaction associated with this thread. This simply calls TransactionManager.getTransaction().

Returns:

null (if there is no associated transaction or if an exception was raised)

See Also:

TransactionManager.getTransaction()