com.atomikos.icatch.imp
Class CompositeTransactionAdaptor

java.lang.Object
  com.atomikos.icatch.imp.AbstractCompositeTransaction
      com.atomikos.icatch.imp.CompositeTransactionAdaptor

All Implemented Interfaces:

Stateful, CompositeCoordinator, CompositeTransaction, Serializable

public class CompositeTransactionAdaptor
extends AbstractCompositeTransaction
implements CompositeCoordinator

Copyright © 2002, Atomikos. All rights reserved. A composite transaction adaptor for interposition on an imported instance. This allows substitution of the recovery coordinator adaptor.

See Also:

Serialized Form

Field Summary

Fields inherited from class com.atomikos.icatch.imp.AbstractCompositeTransaction

lineage_, properties_, serial_, tag_, tid_

Constructor Summary

CompositeTransactionAdaptor(Stack lineage, String tid, boolean serial, RecoveryCoordinator adaptor, Boolean isRecoverableWhileActive)
Create a new instance.

CompositeTransactionAdaptor(String root, boolean serial, RecoveryCoordinator adaptor)
Constructor for testin.

CompositeTransactionAdaptor(String root, boolean serial, RecoveryCoordinator adaptor, Properties properties)
Constructs a new instance for an imported ROOT.

Method Summary

CompositeCoordinator	getCompositeCoordinator() Get the coordinator for this tx.
String	getCoordinatorId() Get the identifier for this coordinator.
RecoveryCoordinator	getRecoveryCoordinator() Get the recovery coordinator instance for this one.
HeuristicMessage[]	getTags() Get the tags that were set for this coordinator.
Boolean	isRecoverableWhileActive() Checks whether the instance is recoverable in the active state.
void	setRecoverableWhileActive() Sets this coordinator to be recoverable while active.

Methods inherited from class com.atomikos.icatch.imp.AbstractCompositeTransaction

addParticipant, addSubTxAwareParticipant, commit, createSubTransaction, equals, getExtent, getLineage, getLocalSubTxCount, getProperties, getProperty, getState, getTid, getTimeout, getTransactionControl, isAncestorOf, isDescendantOf, isLocal, isRelatedTransaction, isRoot, isSameTransaction, isSerial, registerSynchronization, rollback, setProperty, setRollbackOnly, setSerial, setTag

Methods inherited from class java.lang.Object

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

Constructor Detail

CompositeTransactionAdaptor

public CompositeTransactionAdaptor(Stack lineage,
                                   String tid,
                                   boolean serial,
                                   RecoveryCoordinator adaptor,
                                   Boolean isRecoverableWhileActive)

Create a new instance.

Parameters:

lineage - The parent info, not including the instance being constructed here!

serial - True if serial.

adaptor - The adaptor for replay requests.

isRecoverableWhileActive - Whether recoverable in active state or not. Null if not known.

CompositeTransactionAdaptor

public CompositeTransactionAdaptor(String root,
                                   boolean serial,
                                   RecoveryCoordinator adaptor)

Constructor for testin.

Parameters:

root -

serial -

adaptor -

CompositeTransactionAdaptor

public CompositeTransactionAdaptor(String root,
                                   boolean serial,
                                   RecoveryCoordinator adaptor,
                                   Properties properties)

Constructs a new instance for an imported ROOT. This constructor is needed for message-based propagation where only the root TID is passed.

Parameters:

root - The root URI.

serial - Flag for serial mode.

adaptor - The adaptor for recovery.

Method Detail

getCompositeCoordinator

public CompositeCoordinator getCompositeCoordinator()
                                             throws SysException

Description copied from interface: CompositeTransaction

Get the coordinator for this tx.

Specified by:

getCompositeCoordinator in interface CompositeTransaction

Overrides:

getCompositeCoordinator in class AbstractCompositeTransaction

Returns:

CompositeCoordinator The composite coordinator instance.

Throws:

SysException - On failure.

See Also:

CompositeCoordinator.

getCoordinatorId

public String getCoordinatorId()

Description copied from interface: CompositeCoordinator

Get the identifier for this coordinator.

Specified by:

getCoordinatorId in interface CompositeCoordinator

Returns:

String The coordinator id. For imported transactions, this will be the id of the top-level or root transaction. For subtransactions, this will be an independent id.

See Also:

CompositeCoordinator.

getTags

public HeuristicMessage[] getTags()

Description copied from interface: CompositeCoordinator

Get the tags that were set for this coordinator.

Specified by:

getTags in interface CompositeCoordinator

Returns:

HeuristicMessage[] The tags set. These serve as a summary of the local work towards remote client TMs (that way, these do not have to see ALL local heuristic messages, but rather get a relevant summary). The participant proxy for a local coordinator returns these tags as its heuristic messages.

See Also:

CompositeCoordinator.

getRecoveryCoordinator

public RecoveryCoordinator getRecoveryCoordinator()

Description copied from interface: CompositeCoordinator

Get the recovery coordinator instance for this one.

Specified by:

getRecoveryCoordinator in interface CompositeCoordinator

Returns:

RecoveryCoordinator The recovery coordinator.

See Also:

CompositeCoordinator.

isRecoverableWhileActive

public Boolean isRecoverableWhileActive()

Description copied from interface: CompositeCoordinator

Checks whether the instance is recoverable in the active state. Although active recoverability requires more logging overhead, some protocols may need this capability.

Specified by:

isRecoverableWhileActive in interface CompositeCoordinator

Returns:

Boolean True iff recoverable in active state. Null if this information is not available (for imported instances). By default, this is false.

setRecoverableWhileActive

public void setRecoverableWhileActive()

Description copied from interface: CompositeCoordinator

Sets this coordinator to be recoverable while active. Ideally, this method is called before any participants are added (otherwise, some participants may have been added and not recovered due to an intermediate crash). This operation may not be unavailable for imported coordinators, but it should always work for locally created (sub)transactions.
NOTE: active recoverability is inherited by any subtransactions that are created afterwards.

Specified by:

setRecoverableWhileActive in interface CompositeCoordinator