com.atomikos.icatch.jta
Class TransactionManagerImp

java.lang.Object
  com.atomikos.icatch.jta.TransactionManagerImp

All Implemented Interfaces:

SubTxAwareParticipant, Serializable, Referenceable, TransactionManager

public class TransactionManagerImp
extends Object
implements TransactionManager, SubTxAwareParticipant, Referenceable

Copyright © 2001, Atomikos. All rights reserved. The JTA transaction manager implementation.

See Also:

Serialized Form

Field Summary

static int	DEFAULT_TIMEOUT
static String	JTA_PROPERTY_NAME Transaction property name to indicate that the transaction is a JTA transaction.

Method Summary

void	begin() Create a new transaction and associate it with the current thread.
void	begin(int timeout) Custom begin to guarantee a timeout value through an argument.
void	commit()
void	committed(CompositeTransaction tx) Notification of termination.
static boolean	getDefaultSerial() Get the default mode for new txs.
Reference	getReference()
int	getStatus()
Transaction	getTransaction()
Transaction	getTransaction(String tid) Retrieve an existing tx with given tid
static TransactionManager	getTransactionManager() Get the installed transaction manager, if any.
int	getTransactionTimeout()
static void	installTransactionManager(CompositeTransactionManager ctm, boolean automaticResourceRegistration) Install a transaction manager.
void	resume(Transaction tobj)
void	rollback()
void	rolledback(CompositeTransaction tx) Notification that some tx has been rolledback.
static void	setDefaultSerial(boolean serial) Set the default serial mode for new txs.
void	setRollbackOnly()
void	setTransactionTimeout(int seconds)
Transaction	suspend()

Methods inherited from class java.lang.Object

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

Field Detail

JTA_PROPERTY_NAME

public static final String JTA_PROPERTY_NAME

Transaction property name to indicate that the transaction is a JTA transaction. If this property is set to an arbitrary non-null value then a JTA transaction is assumed by this class. This property is used for detecting incompatible existing transactions: if a transaction exists without this property then the begin method will fail.

See Also:

Constant Field Values

DEFAULT_TIMEOUT

public static final int DEFAULT_TIMEOUT

See Also:

Constant Field Values

Method Detail

setDefaultSerial

public static void setDefaultSerial(boolean serial)

Set the default serial mode for new txs.

Parameters:

serial - If true, then new txs will be set to serial mode.

getDefaultSerial

public static boolean getDefaultSerial()

Get the default mode for new txs.

Returns:

boolean If true, then new txs started through here will be in serial mode.

installTransactionManager

public static void installTransactionManager(CompositeTransactionManager ctm,
                                             boolean automaticResourceRegistration)

Install a transaction manager.

Parameters:

ctm - The composite transaction manager to use.

automaticResourceRegistration - If true, then unknown XAResource instances should lead to the addition of a new temporary resource. If false, then unknown resources will lead to an exception.

getTransactionManager

public static TransactionManager getTransactionManager()

Get the installed transaction manager, if any.

Returns:

TransactionManager The installed instance, null if none.

getTransaction

public Transaction getTransaction(String tid)

Retrieve an existing tx with given tid

Parameters:

tid - The tid of the tx.

Returns:

Transaction The instance, or null if not found.

begin

public void begin()
           throws NotSupportedException,
                  SystemException

Create a new transaction and associate it with the current thread. If the current thread already has a transaction, then a local subtransaction will be created. NOTE: the default behaviour of JTA-created subtransactions is blocking. That is: if two of them access the same data, one of the will block. The purpose is to allow safe parallellism in the application. Allowing multiple subtransactions to access the same data has the effect of losing fault tolerance, due to the required XA mappings of JTA. In the native Atomikos mode, this behaviour can be tuned, however.

Specified by:

begin in interface TransactionManager

Throws:

NotSupportedException

SystemException

begin

public void begin(int timeout)
           throws NotSupportedException,
                  SystemException

Custom begin to guarantee a timeout value through an argument.

Throws:

NotSupportedException

SystemException

getTransaction

public Transaction getTransaction()
                           throws SystemException

Specified by:

getTransaction in interface TransactionManager

Throws:

SystemException

See Also:

TransactionManager

setTransactionTimeout

public void setTransactionTimeout(int seconds)
                           throws SystemException

Specified by:

setTransactionTimeout in interface TransactionManager

Throws:

SystemException

See Also:

TransactionManager

getTransactionTimeout

public int getTransactionTimeout()

suspend

public Transaction suspend()
                    throws SystemException

Specified by:

suspend in interface TransactionManager

Throws:

SystemException

See Also:

TransactionManager

resume

public void resume(Transaction tobj)
            throws InvalidTransactionException,
                   IllegalStateException,
                   SystemException

Specified by:

resume in interface TransactionManager

Throws:

InvalidTransactionException

IllegalStateException

SystemException

See Also:

TransactionManager

getStatus

public int getStatus()
              throws SystemException

Specified by:

getStatus in interface TransactionManager

Throws:

SystemException

See Also:

TransactionManager

commit

public void commit()
            throws RollbackException,
                   HeuristicMixedException,
                   HeuristicRollbackException,
                   SystemException,
                   IllegalStateException,
                   SecurityException

Specified by:

commit in interface TransactionManager

Throws:

RollbackException

HeuristicMixedException

HeuristicRollbackException

SystemException

IllegalStateException

SecurityException

See Also:

TransactionManager

rollback

public void rollback()
              throws IllegalStateException,
                     SystemException,
                     SecurityException

Specified by:

rollback in interface TransactionManager

Throws:

IllegalStateException

SystemException

SecurityException

See Also:

TransactionManager

setRollbackOnly

public void setRollbackOnly()
                     throws IllegalStateException,
                            SystemException

Specified by:

setRollbackOnly in interface TransactionManager

Throws:

IllegalStateException

SystemException

See Also:

TransactionManager

committed

public void committed(CompositeTransaction tx)

Description copied from interface: SubTxAwareParticipant

Notification of termination.

Specified by:

committed in interface SubTxAwareParticipant

Parameters:

tx - The composite transaction that has terminated locally at its node.

See Also:

SubTxAwareParticipant

rolledback

public void rolledback(CompositeTransaction tx)

Description copied from interface: SubTxAwareParticipant

Notification that some tx has been rolledback.

Specified by:

rolledback in interface SubTxAwareParticipant

See Also:

SubTxAwareParticipant

getReference

public Reference getReference()
                       throws NamingException

Specified by:

getReference in interface Referenceable

Throws:

NamingException

See Also:

Referenceable.getReference()