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OC4JJtaTransactionManager (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.transaction.jta
Class OC4JJtaTransactionManager

java.lang.Object
  org.springframework.transaction.support.AbstractPlatformTransactionManager
      org.springframework.transaction.jta.JtaTransactionManager
          org.springframework.transaction.jta.OC4JJtaTransactionManager

All Implemented Interfaces:

Serializable, InitializingBean, TransactionFactory, PlatformTransactionManager

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public class OC4JJtaTransactionManager
extends JtaTransactionManager

Special JtaTransactionManager variant for Oracle OC4J (10.1.3 and higher). Supports the full power of Spring's transaction definitions on OC4J's transaction coordinator, beyond standard JTA: transaction names and per-transaction isolation levels.

Uses OC4J's special begin(name) method to start a JTA transaction, in orderto make Spring-driven transactions visible in OC4J's transaction monitor. In case of Spring's declarative transactions, the exposed name will (by default) be the fully-qualified class name + "." + method name.

Supports a per-transaction isolation level through OC4J's corresponding OC4JTransaction.setTransactionIsolation(int) method. This will apply the specified isolation level (e.g. ISOLATION_SERIALIZABLE) to all JDBC Connections that participate in the given transaction.

Automatically detects the available OC4J server version and adapts accordingly. Supports the "com.evermind.server" package in OC4J 10.1.3.2 as well as the "oracle.j2ee.transaction" package in later OC4J versions.

By default, the JTA UserTransaction and TransactionManager handles are fetched directly from OC4J's TransactionUtility in 10.1.3.2+. This can be overridden by specifying "userTransaction"/"userTransactionName" and "transactionManager"/"transactionManagerName", passing in existing handles or specifying corresponding JNDI locations to look up.

Thanks to Oracle for donating the original version of this extended OC4J integration code to the Spring project!

Since:

2.0.3

Author:

Paul Parkinson, Juergen Hoeller

See Also:

TransactionDefinition.getName(), TransactionDefinition.getIsolationLevel(), oracle.j2ee.transaction.OC4JTransactionManager#begin(String), oracle.j2ee.transaction.OC4JTransaction#setTransactionIsolation, oracle.j2ee.transaction.TransactionUtility, Serialized Form

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Nested Class Summary

 

Nested classes/interfaces inherited from class org.springframework.transaction.support.AbstractPlatformTransactionManager
AbstractPlatformTransactionManager.SuspendedResourcesHolder

 

Field Summary

 

Fields inherited from class org.springframework.transaction.jta.JtaTransactionManager
DEFAULT_TRANSACTION_SYNCHRONIZATION_REGISTRY_NAME, DEFAULT_USER_TRANSACTION_NAME, FALLBACK_TRANSACTION_MANAGER_NAMES

 

Fields inherited from class org.springframework.transaction.support.AbstractPlatformTransactionManager
logger, SYNCHRONIZATION_ALWAYS, SYNCHRONIZATION_NEVER, SYNCHRONIZATION_ON_ACTUAL_TRANSACTION

 

Constructor Summary
OC4JJtaTransactionManager()

 

Method Summary
void	afterPropertiesSet()           Initialize the UserTransaction as well as the TransactionManager handle.
Transaction	createTransaction(String name, int timeout)           Create an active Transaction object based on the given name and timeout.
protected  void	doJtaBegin(JtaTransactionObject txObject, TransactionDefinition definition)           Perform a JTA begin on the JTA UserTransaction or TransactionManager.
protected  UserTransaction	retrieveUserTransaction()           Allows subclasses to retrieve the JTA UserTransaction in a vendor-specific manner.

 

Methods inherited from class org.springframework.transaction.jta.JtaTransactionManager

applyIsolationLevel, applyTimeout, buildUserTransaction, doBegin, doCommit, doGetJtaTransaction, doGetTransaction, doJtaResume, doJtaSuspend, doRegisterAfterCompletionWithJtaTransaction, doResume, doRollback, doSetRollbackOnly, doSuspend, findTransactionManager, findTransactionSynchronizationRegistry, findUserTransaction, getJndiEnvironment, getJndiTemplate, getTransactionManager, getUserTransaction, initTransactionSynchronizationRegistry, initUserTransactionAndTransactionManager, isExistingTransaction, lookupTransactionManager, lookupTransactionSynchronizationRegistry, lookupUserTransaction, registerAfterCompletionWithExistingTransaction, retrieveTransactionManager, retrieveTransactionSynchronizationRegistry, setAllowCustomIsolationLevels, setAutodetectTransactionManager, setAutodetectUserTransaction, setCacheUserTransaction, setJndiEnvironment, setJndiTemplate, setTransactionManager, setTransactionManagerName, setTransactionSynchronizationRegistryName, setUserTransaction, setUserTransactionName, shouldCommitOnGlobalRollbackOnly, useSavepointForNestedTransaction

 

Methods inherited from class org.springframework.transaction.support.AbstractPlatformTransactionManager

commit, determineTimeout, doCleanupAfterCompletion, getDefaultTimeout, getTransaction, getTransactionSynchronization, invokeAfterCompletion, isFailEarlyOnGlobalRollbackOnly, isGlobalRollbackOnParticipationFailure, isNestedTransactionAllowed, isRollbackOnCommitFailure, newTransactionStatus, resume, rollback, setDefaultTimeout, setFailEarlyOnGlobalRollbackOnly, setGlobalRollbackOnParticipationFailure, setNestedTransactionAllowed, setRollbackOnCommitFailure, setTransactionSynchronization, setTransactionSynchronizationName, suspend, triggerBeforeCommit, triggerBeforeCompletion

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

OC4JJtaTransactionManager

public OC4JJtaTransactionManager()

Method Detail

afterPropertiesSet

public void afterPropertiesSet()
                        throws TransactionSystemException

Description copied from class: JtaTransactionManager

Initialize the UserTransaction as well as the TransactionManager handle.

Specified by:

afterPropertiesSet in interface InitializingBean

Overrides:

afterPropertiesSet in class JtaTransactionManager

Throws:

TransactionSystemException

See Also:

JtaTransactionManager.initUserTransactionAndTransactionManager()

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retrieveUserTransaction

protected UserTransaction retrieveUserTransaction()
                                           throws TransactionSystemException

Description copied from class: JtaTransactionManager

Allows subclasses to retrieve the JTA UserTransaction in a vendor-specific manner. Only called if no "userTransaction" or "userTransactionName" specified.

The default implementation simply returns null.

Overrides:

retrieveUserTransaction in class JtaTransactionManager

Returns:

the JTA UserTransaction handle to use, or null if none found

Throws:

TransactionSystemException - in case of errors

See Also:

JtaTransactionManager.setUserTransaction(javax.transaction.UserTransaction), JtaTransactionManager.setUserTransactionName(java.lang.String)

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doJtaBegin

protected void doJtaBegin(JtaTransactionObject txObject,
                          TransactionDefinition definition)
                   throws NotSupportedException,
                          SystemException

Description copied from class: JtaTransactionManager

Perform a JTA begin on the JTA UserTransaction or TransactionManager.

This implementation only supports standard JTA functionality: that is, no per-transaction isolation levels and no transaction names. Can be overridden in subclasses, for specific JTA implementations.

Calls applyIsolationLevel and applyTimeout before invoking the UserTransaction's begin method.

Overrides:

doJtaBegin in class JtaTransactionManager

Parameters:

txObject - the JtaTransactionObject containing the UserTransaction

definition - TransactionDefinition instance, describing propagation behavior, isolation level, read-only flag, timeout, and transaction name

Throws:

NotSupportedException - if thrown by JTA methods

SystemException - if thrown by JTA methods

See Also:

JtaTransactionManager.getUserTransaction(), JtaTransactionManager.getTransactionManager(), JtaTransactionManager.applyIsolationLevel(org.springframework.transaction.jta.JtaTransactionObject, int), JtaTransactionManager.applyTimeout(org.springframework.transaction.jta.JtaTransactionObject, int), JtaTransactionObject.getUserTransaction(), UserTransaction.setTransactionTimeout(int), UserTransaction.begin()

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createTransaction

public Transaction createTransaction(String name,
                                     int timeout)
                              throws NotSupportedException,
                                     SystemException

Description copied from interface: TransactionFactory

Create an active Transaction object based on the given name and timeout.

Specified by:

createTransaction in interface TransactionFactory

Overrides:

createTransaction in class JtaTransactionManager

Parameters:

name - the transaction name (may be null)

timeout - the transaction timeout (may be -1 for the default timeout)

Returns:

the active Transaction object (never null)

Throws:

NotSupportedException - if the transaction manager does not support a transaction of the specified type

SystemException - if the transaction managed failed to create the transaction

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