Package org.springframework.jdbc.datasource

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 3.0 Savepoint and returns it.
void	flush()	Flush the underlying sessions to the datastore, if applicable: for example, all affected Hibernate/JPA sessions.
ConnectionHolder	getConnectionHolder()	Return the ConnectionHolder for this transaction object.
protected ConnectionHolder	getConnectionHolderForSavepoint()
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 3.0 Savepoint.
void	rollbackToSavepoint(Object savepoint)	This implementation rolls back to the given JDBC 3.0 Savepoint.
void	setConnectionHolder(ConnectionHolder connectionHolder)	Set the ConnectionHolder for this transaction object.
void	setPreviousIsolationLevel(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 java.lang.Object

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

Methods inherited from interface org.springframework.transaction.support.SmartTransactionObject

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

@Nullable
public 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.

flush

public void flush()

Description copied from interface: SmartTransactionObject

Flush the underlying sessions to the datastore, if applicable: for example, all affected Hibernate/JPA sessions.

Specified by:

flush in interface Flushable

Specified by:

flush in interface SmartTransactionObject

createSavepoint

public Object createSavepoint()
                       throws TransactionException

This implementation creates a JDBC 3.0 Savepoint and returns it.

Specified by:

createSavepoint in interface SavepointManager

Returns:

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

Throws:

NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints

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 3.0 Savepoint.

Specified by:

rollbackToSavepoint in interface SavepointManager

Parameters:

savepoint - the savepoint to roll back to

Throws:

NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints

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 3.0 Savepoint.

Specified by:

releaseSavepoint in interface SavepointManager

Parameters:

savepoint - the savepoint to release

Throws:

NestedTransactionNotSupportedException - if the underlying transaction does not support savepoints

TransactionException - if the release failed

See Also:

• Connection.releaseSavepoint(java.sql.Savepoint)

getConnectionHolderForSavepoint

protected ConnectionHolder getConnectionHolderForSavepoint()
                                                    throws TransactionException

Throws:

TransactionException