类 JdoTransactionManager
- java.lang.Object
- org.springframework.transaction.support.AbstractPlatformTransactionManager
- org.springframework.orm.jdo.JdoTransactionManager
public class JdoTransactionManager extends AbstractPlatformTransactionManager implements ResourceTransactionManager, InitializingBean
PlatformTransactionManager
implementation for a single JDOPersistenceManagerFactory
. Binds a JDO PersistenceManager from the specified factory to the thread, potentially allowing for one thread-bound PersistenceManager per factory.PersistenceManagerFactoryUtils
andSpringPersistenceManagerProxyBean
are aware of thread-bound persistence managers and participate in such transactions automatically. Using either of those (or going through aTransactionAwarePersistenceManagerFactoryProxy
is required for JDO access code supporting this transaction management mechanism.This transaction manager is appropriate for applications that use a single JDO PersistenceManagerFactory for transactional data access. JTA (usually through
JtaTransactionManager
) is necessary for accessing multiple transactional resources within the same transaction. Note that you need to configure your JDO provider accordingly in order to make it participate in JTA transactions.This transaction manager also supports direct DataSource access within a transaction (i.e. plain JDBC code working with the same DataSource). This allows for mixing services which access JDO and services which use plain JDBC (without being aware of JDO)! Application code needs to stick to the same simple Connection lookup pattern as with
DataSourceTransactionManager
(i.e.DataSourceUtils.getConnection(javax.sql.DataSource)
or going through aTransactionAwareDataSourceProxy
).Note: To be able to register a DataSource's Connection for plain JDBC code, this instance needs to be aware of the DataSource (
setDataSource(javax.sql.DataSource)
). The given DataSource should obviously match the one used by the given PersistenceManagerFactory. This transaction manager will autodetect the DataSource that acts as "connectionFactory" of the PersistenceManagerFactory, so you usually don't need to explicitly specify the "dataSource" property.This transaction manager supports nested transactions via JDBC 3.0 Savepoints. The
AbstractPlatformTransactionManager.setNestedTransactionAllowed(boolean)
"nestedTransactionAllowed"} flag defaults to "false", though, as nested transactions will just apply to the JDBC Connection, not to the JDO PersistenceManager and its cached entity objects and related context. You can manually set the flag to "true" if you want to use nested transactions for JDBC access code which participates in JDO transactions (provided that your JDBC driver supports Savepoints). Note that JDO itself does not support nested transactions! Hence, do not expect JDO access code to semantically participate in a nested transaction.- 从以下版本开始:
- 03.06.2003
- 作者:
- Juergen Hoeller
- 另请参阅:
setPersistenceManagerFactory(javax.jdo.PersistenceManagerFactory)
,setDataSource(javax.sql.DataSource)
,PersistenceManagerFactory.getConnectionFactory()
,LocalPersistenceManagerFactoryBean
,PersistenceManagerFactoryUtils.getPersistenceManager(javax.jdo.PersistenceManagerFactory, boolean)
,PersistenceManagerFactoryUtils.releasePersistenceManager(javax.jdo.PersistenceManager, javax.jdo.PersistenceManagerFactory)
,TransactionAwarePersistenceManagerFactoryProxy
,DataSourceUtils.getConnection(javax.sql.DataSource)
,DataSourceUtils.releaseConnection(java.sql.Connection, javax.sql.DataSource)
,JdbcTemplate
,DataSourceTransactionManager
,JtaTransactionManager
, 序列化表格
字段概要
从类继承的字段 org.springframework.transaction.support.AbstractPlatformTransactionManager
logger, SYNCHRONIZATION_ALWAYS, SYNCHRONIZATION_NEVER, SYNCHRONIZATION_ON_ACTUAL_TRANSACTION
构造器概要
构造器 构造器 说明 JdoTransactionManager()
Create a new JdoTransactionManager instance.JdoTransactionManager(javax.jdo.PersistenceManagerFactory pmf)
Create a new JdoTransactionManager instance.
方法概要
所有方法 实例方法 具体方法 修饰符和类型 方法 说明 void
afterPropertiesSet()
Eagerly initialize the JDO dialect, creating a default one for the specified PersistenceManagerFactory if none set.protected void
closePersistenceManagerAfterFailedBegin(org.springframework.orm.jdo.JdoTransactionManager.JdoTransactionObject txObject)
Close the current transaction's EntityManager.protected DataAccessException
convertJdoAccessException(javax.jdo.JDOException ex)
Convert the given JDOException to an appropriate exception from theorg.springframework.dao
hierarchy.protected void
doBegin(Object transaction, TransactionDefinition definition)
Begin a new transaction with semantics according to the given transaction definition.protected void
doCleanupAfterCompletion(Object transaction)
Cleanup resources after transaction completion.protected void
doCommit(DefaultTransactionStatus status)
Perform an actual commit of the given transaction.protected Object
doGetTransaction()
Return a transaction object for the current transaction state.protected void
doResume(Object transaction, Object suspendedResources)
Resume the resources of the current transaction.protected void
doRollback(DefaultTransactionStatus status)
Perform an actual rollback of the given transaction.protected void
doSetRollbackOnly(DefaultTransactionStatus status)
Set the given transaction rollback-only.protected Object
doSuspend(Object transaction)
Suspend the resources of the current transaction.DataSource
getDataSource()
Return the JDBC DataSource that this instance manages transactions for.JdoDialect
getJdoDialect()
Return the JDO dialect to use for this transaction manager.javax.jdo.PersistenceManagerFactory
getPersistenceManagerFactory()
Return the PersistenceManagerFactory that this instance should manage transactions for.Object
getResourceFactory()
Return the resource factory that this transaction manager operates on, e.g. a JDBC DataSource or a JMS ConnectionFactory.protected boolean
isExistingTransaction(Object transaction)
Check if the given transaction object indicates an existing transaction (that is, a transaction which has already started).void
setAutodetectDataSource(boolean autodetectDataSource)
Set whether to autodetect a JDBC DataSource used by the JDO PersistenceManagerFactory, as returned by thegetConnectionFactory()
method.void
setDataSource(DataSource dataSource)
Set the JDBC DataSource that this instance should manage transactions for.void
setJdoDialect(JdoDialect jdoDialect)
Set the JDO dialect to use for this transaction manager.void
setPersistenceManagerFactory(javax.jdo.PersistenceManagerFactory pmf)
Set the PersistenceManagerFactory that this instance should manage transactions for.protected boolean
shouldCommitOnGlobalRollbackOnly()
This implementation returns "true": a JDO commit will properly handle transactions that have been marked rollback-only at a global level.从类继承的方法 org.springframework.transaction.support.AbstractPlatformTransactionManager
commit, determineTimeout, getDefaultTimeout, getTransaction, getTransactionSynchronization, invokeAfterCompletion, isFailEarlyOnGlobalRollbackOnly, isGlobalRollbackOnParticipationFailure, isNestedTransactionAllowed, isRollbackOnCommitFailure, isValidateExistingTransaction, newTransactionStatus, prepareForCommit, prepareSynchronization, prepareTransactionStatus, registerAfterCompletionWithExistingTransaction, resume, rollback, setDefaultTimeout, setFailEarlyOnGlobalRollbackOnly, setGlobalRollbackOnParticipationFailure, setNestedTransactionAllowed, setRollbackOnCommitFailure, setTransactionSynchronization, setTransactionSynchronizationName, setValidateExistingTransaction, suspend, triggerBeforeCommit, triggerBeforeCompletion, useSavepointForNestedTransaction
从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
从接口继承的方法 org.springframework.transaction.PlatformTransactionManager
commit, getTransaction, rollback
构造器详细资料
JdoTransactionManager
public JdoTransactionManager()
Create a new JdoTransactionManager instance. A PersistenceManagerFactory has to be set to be able to use it.
JdoTransactionManager
public JdoTransactionManager(javax.jdo.PersistenceManagerFactory pmf)
Create a new JdoTransactionManager instance.- 参数:
pmf
- PersistenceManagerFactory to manage transactions for
方法详细资料
setPersistenceManagerFactory
public void setPersistenceManagerFactory(javax.jdo.PersistenceManagerFactory pmf)
Set the PersistenceManagerFactory that this instance should manage transactions for.The PersistenceManagerFactory specified here should be the target PersistenceManagerFactory to manage transactions for, not a TransactionAwarePersistenceManagerFactoryProxy. Only data access code may work with TransactionAwarePersistenceManagerFactoryProxy, while the transaction manager needs to work on the underlying target PersistenceManagerFactory.
getPersistenceManagerFactory
public javax.jdo.PersistenceManagerFactory getPersistenceManagerFactory()
Return the PersistenceManagerFactory that this instance should manage transactions for.
setDataSource
public void setDataSource(DataSource dataSource)
Set the JDBC DataSource that this instance should manage transactions for. The DataSource should match the one used by the JDO PersistenceManagerFactory: for example, you could specify the same JNDI DataSource for both.If the PersistenceManagerFactory uses a DataSource as connection factory, the DataSource will be autodetected: You can still explicitly specify the DataSource, but you don't need to in this case.
A transactional JDBC Connection for this DataSource will be provided to application code accessing this DataSource directly via DataSourceUtils or JdbcTemplate. The Connection will be taken from the JDO PersistenceManager.
Note that you need to use a JDO dialect for a specific JDO provider to allow for exposing JDO transactions as JDBC transactions.
The DataSource specified here should be the target DataSource to manage transactions for, not a TransactionAwareDataSourceProxy. Only data access code may work with TransactionAwareDataSourceProxy, while the transaction manager needs to work on the underlying target DataSource. If there's nevertheless a TransactionAwareDataSourceProxy passed in, it will be unwrapped to extract its target DataSource.
- 另请参阅:
setAutodetectDataSource(boolean)
,setJdoDialect(org.springframework.orm.jdo.JdoDialect)
,PersistenceManagerFactory.getConnectionFactory()
,TransactionAwareDataSourceProxy
,DataSourceUtils
,JdbcTemplate
getDataSource
public DataSource getDataSource()
Return the JDBC DataSource that this instance manages transactions for.
setAutodetectDataSource
public void setAutodetectDataSource(boolean autodetectDataSource)
Set whether to autodetect a JDBC DataSource used by the JDO PersistenceManagerFactory, as returned by thegetConnectionFactory()
method. Default is "true".Can be turned off to deliberately ignore an available DataSource, to not expose JDO transactions as JDBC transactions for that DataSource.
- 另请参阅:
setDataSource(javax.sql.DataSource)
,PersistenceManagerFactory.getConnectionFactory()
setJdoDialect
public void setJdoDialect(JdoDialect jdoDialect)
Set the JDO dialect to use for this transaction manager.The dialect object can be used to retrieve the underlying JDBC connection and thus allows for exposing JDO transactions as JDBC transactions.
getJdoDialect
public JdoDialect getJdoDialect()
Return the JDO dialect to use for this transaction manager.Creates a default one for the specified PersistenceManagerFactory if none set.
afterPropertiesSet
public void afterPropertiesSet()
Eagerly initialize the JDO dialect, creating a default one for the specified PersistenceManagerFactory if none set. Auto-detect the PersistenceManagerFactory's DataSource, if any.- 指定者:
afterPropertiesSet
在接口中InitializingBean
getResourceFactory
public Object getResourceFactory()
从接口复制的说明:ResourceTransactionManager
Return the resource factory that this transaction manager operates on, e.g. a JDBC DataSource or a JMS ConnectionFactory.This target resource factory is usually used as resource key for
TransactionSynchronizationManager
's resource bindings per thread.- 指定者:
getResourceFactory
在接口中ResourceTransactionManager
- 返回:
- the target resource factory (never
null
) - 另请参阅:
TransactionSynchronizationManager.bindResource(java.lang.Object, java.lang.Object)
,TransactionSynchronizationManager.getResource(java.lang.Object)
doGetTransaction
protected Object doGetTransaction()
从类复制的说明:AbstractPlatformTransactionManager
Return a transaction object for the current transaction state.The returned object will usually be specific to the concrete transaction manager implementation, carrying corresponding transaction state in a modifiable fashion. This object will be passed into the other template methods (e.g. doBegin and doCommit), either directly or as part of a DefaultTransactionStatus instance.
The returned object should contain information about any existing transaction, that is, a transaction that has already started before the current
getTransaction
call on the transaction manager. Consequently, adoGetTransaction
implementation will usually look for an existing transaction and store corresponding state in the returned transaction object.- 指定者:
doGetTransaction
在类中AbstractPlatformTransactionManager
- 返回:
- the current transaction object
- 另请参阅:
AbstractPlatformTransactionManager.doBegin(java.lang.Object, org.springframework.transaction.TransactionDefinition)
,AbstractPlatformTransactionManager.doCommit(org.springframework.transaction.support.DefaultTransactionStatus)
,AbstractPlatformTransactionManager.doRollback(org.springframework.transaction.support.DefaultTransactionStatus)
,DefaultTransactionStatus.getTransaction()
isExistingTransaction
protected boolean isExistingTransaction(Object transaction)
从类复制的说明:AbstractPlatformTransactionManager
Check if the given transaction object indicates an existing transaction (that is, a transaction which has already started).The result will be evaluated according to the specified propagation behavior for the new transaction. An existing transaction might get suspended (in case of PROPAGATION_REQUIRES_NEW), or the new transaction might participate in the existing one (in case of PROPAGATION_REQUIRED).
The default implementation returns
false
, assuming that participating in existing transactions is generally not supported. Subclasses are of course encouraged to provide such support.- 覆盖:
isExistingTransaction
在类中AbstractPlatformTransactionManager
- 参数:
transaction
- transaction object returned by doGetTransaction- 返回:
- if there is an existing transaction
- 另请参阅:
AbstractPlatformTransactionManager.doGetTransaction()
doBegin
protected void doBegin(Object transaction, TransactionDefinition definition)
从类复制的说明:AbstractPlatformTransactionManager
Begin a new transaction with semantics according to the given transaction definition. Does not have to care about applying the propagation behavior, as this has already been handled by this abstract manager.This method gets called when the transaction manager has decided to actually start a new transaction. Either there wasn't any transaction before, or the previous transaction has been suspended.
A special scenario is a nested transaction without savepoint: If
useSavepointForNestedTransaction()
returns "false", this method will be called to start a nested transaction when necessary. In such a context, there will be an active transaction: The implementation of this method has to detect this and start an appropriate nested transaction.- 指定者:
doBegin
在类中AbstractPlatformTransactionManager
- 参数:
transaction
- transaction object returned bydoGetTransaction
definition
- TransactionDefinition instance, describing propagation behavior, isolation level, read-only flag, timeout, and transaction name
closePersistenceManagerAfterFailedBegin
protected void closePersistenceManagerAfterFailedBegin(org.springframework.orm.jdo.JdoTransactionManager.JdoTransactionObject txObject)
Close the current transaction's EntityManager. Called after a transaction begin attempt failed.- 参数:
txObject
- the current transaction
doSuspend
protected Object doSuspend(Object transaction)
从类复制的说明:AbstractPlatformTransactionManager
Suspend the resources of the current transaction. Transaction synchronization will already have been suspended.The default implementation throws a TransactionSuspensionNotSupportedException, assuming that transaction suspension is generally not supported.
- 覆盖:
doSuspend
在类中AbstractPlatformTransactionManager
- 参数:
transaction
- transaction object returned bydoGetTransaction
- 返回:
- an object that holds suspended resources (will be kept unexamined for passing it into doResume)
- 另请参阅:
AbstractPlatformTransactionManager.doResume(java.lang.Object, java.lang.Object)
doResume
protected void doResume(Object transaction, Object suspendedResources)
从类复制的说明:AbstractPlatformTransactionManager
Resume the resources of the current transaction. Transaction synchronization will be resumed afterwards.The default implementation throws a TransactionSuspensionNotSupportedException, assuming that transaction suspension is generally not supported.
- 覆盖:
doResume
在类中AbstractPlatformTransactionManager
- 参数:
transaction
- transaction object returned bydoGetTransaction
suspendedResources
- the object that holds suspended resources, as returned by doSuspend- 另请参阅:
AbstractPlatformTransactionManager.doSuspend(java.lang.Object)
shouldCommitOnGlobalRollbackOnly
protected boolean shouldCommitOnGlobalRollbackOnly()
This implementation returns "true": a JDO commit will properly handle transactions that have been marked rollback-only at a global level.- 覆盖:
shouldCommitOnGlobalRollbackOnly
在类中AbstractPlatformTransactionManager
- 另请参阅:
AbstractPlatformTransactionManager.doCommit(org.springframework.transaction.support.DefaultTransactionStatus)
,DefaultTransactionStatus.isGlobalRollbackOnly()
,AbstractTransactionStatus.isLocalRollbackOnly()
,TransactionStatus.setRollbackOnly()
,UnexpectedRollbackException
,UserTransaction.commit()
,RollbackException
doCommit
protected void doCommit(DefaultTransactionStatus status)
从类复制的说明:AbstractPlatformTransactionManager
Perform an actual commit of the given transaction.An implementation does not need to check the "new transaction" flag or the rollback-only flag; this will already have been handled before. Usually, a straight commit will be performed on the transaction object contained in the passed-in status.
- 指定者:
doCommit
在类中AbstractPlatformTransactionManager
- 参数:
status
- the status representation of the transaction- 另请参阅:
DefaultTransactionStatus.getTransaction()
doRollback
protected void doRollback(DefaultTransactionStatus status)
从类复制的说明:AbstractPlatformTransactionManager
Perform an actual rollback of the given transaction.An implementation does not need to check the "new transaction" flag; this will already have been handled before. Usually, a straight rollback will be performed on the transaction object contained in the passed-in status.
- 指定者:
doRollback
在类中AbstractPlatformTransactionManager
- 参数:
status
- the status representation of the transaction- 另请参阅:
DefaultTransactionStatus.getTransaction()
doSetRollbackOnly
protected void doSetRollbackOnly(DefaultTransactionStatus status)
从类复制的说明:AbstractPlatformTransactionManager
Set the given transaction rollback-only. Only called on rollback if the current transaction participates in an existing one.The default implementation throws an IllegalTransactionStateException, assuming that participating in existing transactions is generally not supported. Subclasses are of course encouraged to provide such support.
- 覆盖:
doSetRollbackOnly
在类中AbstractPlatformTransactionManager
- 参数:
status
- the status representation of the transaction
doCleanupAfterCompletion
protected void doCleanupAfterCompletion(Object transaction)
从类复制的说明:AbstractPlatformTransactionManager
Cleanup resources after transaction completion.Called after
doCommit
anddoRollback
execution, on any outcome. The default implementation does nothing.Should not throw any exceptions but just issue warnings on errors.
- 覆盖:
doCleanupAfterCompletion
在类中AbstractPlatformTransactionManager
- 参数:
transaction
- transaction object returned bydoGetTransaction
convertJdoAccessException
protected DataAccessException convertJdoAccessException(javax.jdo.JDOException ex)
Convert the given JDOException to an appropriate exception from theorg.springframework.dao
hierarchy.The default implementation delegates to the JdoDialect. May be overridden in subclasses.
- 参数:
ex
- JDOException that occured- 返回:
- the corresponding DataAccessException instance
- 另请参阅:
JdoDialect.translateException(javax.jdo.JDOException)