## 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

    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

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, checkUserTransactionAndTransactionManager, 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, supportsResourceAdapterManagedTransactions, useSavepointForNestedTransaction`

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

`commit, determineTimeout, doCleanupAfterCompletion, getDefaultTimeout, getTransaction, getTransactionSynchronization, invokeAfterCompletion, isFailEarlyOnGlobalRollbackOnly, isGlobalRollbackOnParticipationFailure, isNestedTransactionAllowed, isRollbackOnCommitFailure, isValidateExistingTransaction, newTransactionStatus, prepareForCommit, prepareSynchronization, prepareTransactionStatus, resume, rollback, setDefaultTimeout, setFailEarlyOnGlobalRollbackOnly, setGlobalRollbackOnParticipationFailure, setNestedTransactionAllowed, setRollbackOnCommitFailure, setTransactionSynchronization, setTransactionSynchronizationName, setValidateExistingTransaction, 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()`

### 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)`

### 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()`

### 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 manager failed to create the transaction