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

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org.springframework.transaction.support
Class DefaultTransactionStatus

java.lang.Object
  org.springframework.transaction.support.AbstractTransactionStatus
      org.springframework.transaction.support.DefaultTransactionStatus

All Implemented Interfaces:: SavepointManager, TransactionStatus

public class DefaultTransactionStatus
extends AbstractTransactionStatus
extends AbstractTransactionStatus

Default implementation of the TransactionStatus interface, used by AbstractPlatformTransactionManager. Based on the concept of an underlying "transaction object".

Holds all status information that AbstractPlatformTransactionManager needs internally, including a generic transaction object determined by the concrete transaction manager implementation.

Supports delegating savepoint-related methods to a transaction object that implements the SavepointManager interface.

NOTE: This is not intended to be used for other PlatformTransactionManager implementations, in particular not for mock transaction managers. Use SimpleTransactionStatus or a mock for the plain TransactionStatus interface instead.

Since:: 19.01.2004
Author:: Juergen Hoeller
See Also:: AbstractPlatformTransactionManager, SavepointManager, getTransaction(), AbstractTransactionStatus.createSavepoint(), AbstractTransactionStatus.rollbackToSavepoint(java.lang.Object), AbstractTransactionStatus.releaseSavepoint(java.lang.Object), SimpleTransactionStatus

Constructor Summary

DefaultTransactionStatus(Object transaction, boolean newTransaction, boolean newSynchronization, boolean readOnly, boolean debug, Object suspendedResources)
          Create a new DefaultTransactionStatus instance.

Method Summary

protected SavepointManager getSavepointManager()
          This implementation exposes the SavepointManager interface of the underlying transaction object, if any.

Object getSuspendedResources()
          Return the holder for resources that have been suspended for this transaction, if any.

Object getTransaction()
          Return the underlying transaction object.

boolean hasTransaction()
          Return whether there is an actual transaction active.

boolean isDebug()
          Return whether the progress of this transaction is debugged.

boolean isGlobalRollbackOnly()
          Determine the rollback-only flag via checking both the transaction object, provided that the latter implements the SmartTransactionObject interface.

boolean isNewSynchronization()
          Return if a new transaction synchronization has been opened for this transaction.

boolean isNewTransaction()
          Return whether the present transaction is new (else participating in an existing transaction, or potentially not running in an actual transaction in the first place).

boolean isReadOnly()
          Return if this transaction is defined as read-only transaction.

boolean isTransactionSavepointManager()
          Return whether the underlying transaction implements the SavepointManager interface.

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

createAndHoldSavepoint, createSavepoint, getSavepoint, hasSavepoint, isCompleted, isLocalRollbackOnly, isRollbackOnly, releaseHeldSavepoint, releaseSavepoint, rollbackToHeldSavepoint, rollbackToSavepoint, setCompleted, setRollbackOnly, setSavepoint

Methods inherited from class java.lang.Object

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

Constructor Summary
`DefaultTransactionStatus(Object transaction, boolean newTransaction, boolean newSynchronization, boolean readOnly, boolean debug, Object suspendedResources)` Create a new DefaultTransactionStatus instance.

Method Summary
`protected SavepointManager`	`getSavepointManager()` This implementation exposes the SavepointManager interface of the underlying transaction object, if any.
`Object`	`getSuspendedResources()` Return the holder for resources that have been suspended for this transaction, if any.
`Object`	`getTransaction()` Return the underlying transaction object.
`boolean`	`hasTransaction()` Return whether there is an actual transaction active.
`boolean`	`isDebug()` Return whether the progress of this transaction is debugged.
`boolean`	`isGlobalRollbackOnly()` Determine the rollback-only flag via checking both the transaction object, provided that the latter implements the SmartTransactionObject interface.
`boolean`	`isNewSynchronization()` Return if a new transaction synchronization has been opened for this transaction.
`boolean`	`isNewTransaction()` Return whether the present transaction is new (else participating in an existing transaction, or potentially not running in an actual transaction in the first place).
`boolean`	`isReadOnly()` Return if this transaction is defined as read-only transaction.
`boolean`	`isTransactionSavepointManager()` Return whether the underlying transaction implements the SavepointManager interface.

Methods inherited from class org.springframework.transaction.support.AbstractTransactionStatus
`createAndHoldSavepoint, createSavepoint, getSavepoint, hasSavepoint, isCompleted, isLocalRollbackOnly, isRollbackOnly, releaseHeldSavepoint, releaseSavepoint, rollbackToHeldSavepoint, rollbackToSavepoint, setCompleted, setRollbackOnly, setSavepoint`

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

Constructor Detail

DefaultTransactionStatus

public DefaultTransactionStatus(Object transaction,
                                boolean newTransaction,
                                boolean newSynchronization,
                                boolean readOnly,
                                boolean debug,
                                Object suspendedResources)

Create a new DefaultTransactionStatus instance.

Parameters:: transaction - underlying transaction object that can hold state for the internal transaction implementation; newTransaction - if the transaction is new, else participating in an existing transaction; newSynchronization - if a new transaction synchronization has been opened for the given transaction; readOnly - whether the transaction is read-only; debug - should debug logging be enabled for the handling of this transaction? Caching it in here can prevent repeated calls to ask the logging system whether debug logging should be enabled.; suspendedResources - a holder for resources that have been suspended for this transaction, if any

Method Detail

getTransaction

public Object getTransaction()

Return the underlying transaction object.

hasTransaction

public boolean hasTransaction()

Return whether there is an actual transaction active.

isNewTransaction

public boolean isNewTransaction()

Description copied from interface: TransactionStatus

Return whether the present transaction is new (else participating in an existing transaction, or potentially not running in an actual transaction in the first place).

isNewSynchronization

public boolean isNewSynchronization()

Return if a new transaction synchronization has been opened for this transaction.

isReadOnly

public boolean isReadOnly()

Return if this transaction is defined as read-only transaction.

isDebug

public boolean isDebug()

Return whether the progress of this transaction is debugged. This is used by AbstractPlatformTransactionManager as an optimization, to prevent repeated calls to logger.isDebug(). Not really intended for client code.

getSuspendedResources

public Object getSuspendedResources()

Return the holder for resources that have been suspended for this transaction, if any.

isGlobalRollbackOnly

public boolean isGlobalRollbackOnly()

Determine the rollback-only flag via checking both the transaction object, provided that the latter implements the SmartTransactionObject interface.

Will return "true" if the transaction itself has been marked rollback-only by the transaction coordinator, for example in case of a timeout.

Overrides:: isGlobalRollbackOnly in class AbstractTransactionStatus

See Also:: SmartTransactionObject.isRollbackOnly()

getSavepointManager

protected SavepointManager getSavepointManager()

This implementation exposes the SavepointManager interface of the underlying transaction object, if any.

Overrides:: getSavepointManager in class AbstractTransactionStatus

isTransactionSavepointManager

public boolean isTransactionSavepointManager()

Return whether the underlying transaction implements the SavepointManager interface.

See Also:: getTransaction(), SavepointManager