weblogic.transaction

Class TransactionHelper

java.lang.Object

weblogic.transaction.TransactionHelper

public abstract class TransactionHelper
extends java.lang.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.

Field Summary

Fields

Modifier and Type	Field and Description
private static TransactionHelper	singleton
private static java.util.Stack	txStack

Constructor Summary

Constructors

Constructor and Description
TransactionHelper()

Method Summary

Modifier and Type	Method and Description
private static InterposedTransactionManager	doGetClientInterposedTransactionManager(javax.naming.Context initialContext, java.lang.String serverName)
static InterposedTransactionManager	getClientInterposedTransactionManager(javax.naming.Context initialContext, java.lang.String serverName)
static InterposedTransactionManager	getClientInterposedTransactionManagerThrowsOnException(javax.naming.Context initialContext, java.lang.String serverName)
javax.transaction.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 javax.transaction.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

Field Detail

singleton

private static TransactionHelper singleton

txStack

private static java.util.Stack txStack

Constructor Detail

TransactionHelper

public TransactionHelper()

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 java.util.EmptyStackException

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

Throws:

java.util.EmptyStackException

getUserTransaction

public abstract javax.transaction.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 javax.transaction.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()

getClientInterposedTransactionManager

public static InterposedTransactionManager getClientInterposedTransactionManager(javax.naming.Context initialContext,
                                                                                 java.lang.String serverName)

getClientInterposedTransactionManagerThrowsOnException

public static InterposedTransactionManager getClientInterposedTransactionManagerThrowsOnException(javax.naming.Context initialContext,
                                                                                                  java.lang.String serverName)
                                                                                           throws java.lang.Exception

Throws:

java.lang.Exception

doGetClientInterposedTransactionManager

private static InterposedTransactionManager doGetClientInterposedTransactionManager(javax.naming.Context initialContext,
                                                                                    java.lang.String serverName)
                                                                             throws javax.naming.NamingException

Throws:

javax.naming.NamingException