Top Description Fields Constructors Methods

org.apache.derby.iapi.transaction

public final Class TransactionControl

Class Inheritance

extends Object

java.lang.Object
org.apache.derby.iapi.transaction.TransactionControl

Imports

java.util.ArrayList, .Iterator, org.apache.derby.shared.common.error.ExceptionSeverity, .StandardException, org.apache.derby.shared.common.util.ArrayUtil, org.apache.derby.shared.common.reference.SQLState

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

Add rollback of savepoints?

Todo

A

Field Summary

Modifier and Type	Field and Description
private static final int[]	CS_TO_JDBC_ISOLATION_LEVEL_MAP Map from Derby transaction isolation constants to JDBC constants.
private static final String[][]	CS_TO_SQL_ISOLATION_MAP Map from Derby transaction isolation constants to text values used in SQL.
private final ArrayList<TransactionListener>	listeners
public static final int	READ_COMMITTED_ISOLATION_LEVEL
public static final int	READ_UNCOMMITTED_ISOLATION_LEVEL
public static final int	REPEATABLE_READ_ISOLATION_LEVEL
public static final int	SERIALIZABLE_ISOLATION_LEVEL
public static final int	UNSPECIFIED_ISOLATION_LEVEL

Constructor Summary

Access	Constructor and Description
public	TransactionControl()

Method Summary

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

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

CS_TO_JDBC_ISOLATION_LEVEL_MAP	back to summary
private static final int[] CS_TO_JDBC_ISOLATION_LEVEL_MAP Map from Derby transaction isolation constants to JDBC constants.

CS_TO_SQL_ISOLATION_MAP	back to summary
private static final String[][] CS_TO_SQL_ISOLATION_MAP Map from Derby transaction isolation constants to text values used in SQL. Note that the text "REPEATABLE READ" or "RR" maps to SERIALIZABLE_ISOLATION_LEVEL as a hang over from DB2 compatibility and now to preserve backwards compatability.

listeners	back to summary
private final ArrayList<TransactionListener> listeners

READ_COMMITTED_ISOLATION_LEVEL	back to summary
public static final int READ_COMMITTED_ISOLATION_LEVEL

READ_UNCOMMITTED_ISOLATION_LEVEL	back to summary
public static final int READ_UNCOMMITTED_ISOLATION_LEVEL

REPEATABLE_READ_ISOLATION_LEVEL	back to summary
public static final int REPEATABLE_READ_ISOLATION_LEVEL

SERIALIZABLE_ISOLATION_LEVEL	back to summary
public static final int SERIALIZABLE_ISOLATION_LEVEL

UNSPECIFIED_ISOLATION_LEVEL	back to summary
public static final int UNSPECIFIED_ISOLATION_LEVEL

Constructor Detail

TransactionControl	back to summary
public TransactionControl()

Method Detail

addListener	back to summary
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.

isolationMapCount	back to summary
public static int isolationMapCount() Get number of isolation string mappings

isolationTextNames	back to summary
public static String[] isolationTextNames(int derbyIsolationLevel) Map Derby isolation level to SQL text values

jdbcIsolationLevel	back to summary
public static int jdbcIsolationLevel(int derbyIsolationLevel) Map a Derby isolation level to the corresponding JDBC level

preCommitNotify	back to summary
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.

preRollbackNotify	back to summary
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.

removeListener	back to summary
public void removeListener(TransactionListener listener) Remove a listener from the current transaction.