Class JdbcTransactionObjectSupport

java.lang.Object

org.springframework.jdbc.datasource.JdbcTransactionObjectSupport

All Implemented Interfaces:

Flushable, SavepointManager, SmartTransactionObject

public abstract class JdbcTransactionObjectSupport
extends Object
implements SavepointManager, SmartTransactionObject

Convenient base class for JDBC-aware transaction objects. Can contain a ConnectionHolder with a JDBC Connection, and implements the SavepointManager interface based on that ConnectionHolder.

Allows for programmatic management of JDBC Savepoints. Spring's DefaultTransactionStatus automatically delegates to this, as it autodetects transaction objects which implement the SavepointManager interface.

Since:

1.1

Author:

Juergen Hoeller

See Also:

• DataSourceTransactionManager

Constructor Summary

Constructors

Constructor	Description
JdbcTransactionObjectSupport()

Method Summary

Modifier and Type	Method	Description
Object	createSavepoint()	This implementation creates a JDBC Savepoint and returns it.
ConnectionHolder	getConnectionHolder()	Return the ConnectionHolder for this transaction object.
protected ConnectionHolder	getConnectionHolderForSavepoint()
@Nullable Integer	getPreviousIsolationLevel()	Return the retained previous isolation level, if any.
boolean	hasConnectionHolder()	Check whether this transaction object has a ConnectionHolder.
boolean	isReadOnly()	Return the read-only status of this transaction.
boolean	isSavepointAllowed()	Return whether savepoints are allowed within this transaction.
void	releaseSavepoint(Object savepoint)	This implementation releases the given JDBC Savepoint.
void	rollbackToSavepoint(Object savepoint)	This implementation rolls back to the given JDBC Savepoint.
void	setConnectionHolder(@Nullable ConnectionHolder connectionHolder)	Set the ConnectionHolder for this transaction object.
void	setPreviousIsolationLevel(@Nullable Integer previousIsolationLevel)	Set the previous isolation level to retain, if any.
void	setReadOnly(boolean readOnly)	Set the read-only status of this transaction.
void	setSavepointAllowed(boolean savepointAllowed)	Set whether savepoints are allowed within this transaction.

Methods inherited from class Object

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

Methods inherited from interface SmartTransactionObject

flush, isRollbackOnly

Constructor Details

JdbcTransactionObjectSupport

public JdbcTransactionObjectSupport()

Method Details

setConnectionHolder

public void setConnectionHolder(@Nullable ConnectionHolder connectionHolder)

Set the ConnectionHolder for this transaction object.

getConnectionHolder

public ConnectionHolder getConnectionHolder()

Return the ConnectionHolder for this transaction object.

hasConnectionHolder

public boolean hasConnectionHolder()

Check whether this transaction object has a ConnectionHolder.

setPreviousIsolationLevel

public void setPreviousIsolationLevel(@Nullable Integer previousIsolationLevel)

Set the previous isolation level to retain, if any.

getPreviousIsolationLevel

public @Nullable Integer getPreviousIsolationLevel()

Return the retained previous isolation level, if any.

setReadOnly

public void setReadOnly(boolean readOnly)

Set the read-only status of this transaction. The default is false.

Since:

5.2.1

isReadOnly

public boolean isReadOnly()

Return the read-only status of this transaction.

Since:

5.2.1

setSavepointAllowed

public void setSavepointAllowed(boolean savepointAllowed)

Set whether savepoints are allowed within this transaction. The default is false.

isSavepointAllowed

public boolean isSavepointAllowed()

Return whether savepoints are allowed within this transaction.

createSavepoint

public Object createSavepoint()
                       throws TransactionException

This implementation creates a JDBC Savepoint and returns it.

Specified by:

createSavepoint in interface SavepointManager

Returns:

a savepoint object, to be passed into SavepointManager.rollbackToSavepoint(Object) or SavepointManager.releaseSavepoint(Object)

Throws:

TransactionException - if the savepoint could not be created, for example because the transaction is not in an appropriate state

See Also:

• Connection.setSavepoint()

rollbackToSavepoint

public void rollbackToSavepoint(Object savepoint)
                         throws TransactionException

This implementation rolls back to the given JDBC Savepoint.

Specified by:

rollbackToSavepoint in interface SavepointManager

Parameters:

savepoint - the savepoint to roll back to

Throws:

TransactionException - if the rollback failed

See Also:

• Connection.rollback(java.sql.Savepoint)

releaseSavepoint

public void releaseSavepoint(Object savepoint)
                      throws TransactionException

This implementation releases the given JDBC Savepoint.

Specified by:

releaseSavepoint in interface SavepointManager

Parameters:

savepoint - the savepoint to release

Throws:

TransactionException - if the release failed

See Also:

• Connection.releaseSavepoint(Savepoint)

getConnectionHolderForSavepoint

protected ConnectionHolder getConnectionHolderForSavepoint()
                                                    throws TransactionException

Throws:

TransactionException