org.apache.derby.iapi.transaction

Class TransactionControl

java.lang.Object

org.apache.derby.iapi.transaction.TransactionControl

public final class TransactionControl
extends java.lang.Object

Provide support to transactions to manage sets of actions to perform at transaction boundaries.

Add rollback of savepoints? TODO: A

Field Summary

Fields

Modifier and Type	Field and Description
static int	READ_COMMITTED_ISOLATION_LEVEL
static int	READ_UNCOMMITTED_ISOLATION_LEVEL
static int	REPEATABLE_READ_ISOLATION_LEVEL
static int	SERIALIZABLE_ISOLATION_LEVEL
static int	UNSPECIFIED_ISOLATION_LEVEL

Constructor Summary

Constructors

Constructor and Description
TransactionControl()

Method Summary

Modifier and Type	Method and Description
void	addListener(TransactionListener listener) Add a listener to the curent transaction.
static int	isolationMapCount() Get number of isolation string mappings
static java.lang.String[]	isolationTextNames(int derbyIsolationLevel) Map Derby isolation level to SQL text values
static int	jdbcIsolationLevel(int derbyIsolationLevel) Map a Derby isolation level to the corresponding JDBC level
void	preCommitNotify() Notify all listeners that a commit is about to occur.
void	preRollbackNotify() Notify all listeners that a rollback is about to occur.
void	removeListener(TransactionListener listener) Remove a listener from the current transaction.

Methods inherited from class java.lang.Object

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

Field Detail

UNSPECIFIED_ISOLATION_LEVEL

public static final int UNSPECIFIED_ISOLATION_LEVEL

See Also:

Constant Field Values

READ_UNCOMMITTED_ISOLATION_LEVEL

public static final int READ_UNCOMMITTED_ISOLATION_LEVEL

See Also:

Constant Field Values

READ_COMMITTED_ISOLATION_LEVEL

public static final int READ_COMMITTED_ISOLATION_LEVEL

See Also:

Constant Field Values

REPEATABLE_READ_ISOLATION_LEVEL

public static final int REPEATABLE_READ_ISOLATION_LEVEL

See Also:

Constant Field Values

SERIALIZABLE_ISOLATION_LEVEL

public static final int SERIALIZABLE_ISOLATION_LEVEL

See Also:

Constant Field Values

Constructor Detail

TransactionControl

public TransactionControl()

Method Detail

jdbcIsolationLevel

public static int jdbcIsolationLevel(int derbyIsolationLevel)

Map a Derby isolation level to the corresponding JDBC level

isolationTextNames

public static java.lang.String[] isolationTextNames(int derbyIsolationLevel)

Map Derby isolation level to SQL text values

isolationMapCount

public static int isolationMapCount()

Get number of isolation string mappings

addListener

public void addListener(TransactionListener listener)

Add a listener to the curent transaction. A listener may be added multiple times and it will receive multiple callbacks.

removeListener

public void removeListener(TransactionListener listener)

Remove a listener from the current transaction.

preCommitNotify

public void preCommitNotify()
                     throws StandardException

Notify all listeners that a commit is about to occur. If a listener throws an exception then no further listeners will be notified and a StandardException with rollback severity will be thrown.

Throws:

StandardException

preRollbackNotify

public void preRollbackNotify()
                       throws StandardException

Notify all listeners that a rollback is about to occur. If a listener throws an exception then no further listeners will be notified and a StandardException with shutdown database(?) severity will be thrown.

Throws:

StandardException