bitronix.tm.twopc
Class Preparer

java.lang.Object
  bitronix.tm.twopc.AbstractPhaseEngine
      bitronix.tm.twopc.Preparer

public final class Preparer
extends AbstractPhaseEngine

Phase 1 Prepare logic engine.

Author:

lorban

Constructor Summary

Preparer(Executor executor)

Method Summary

protected Job	createJob(XAResourceHolderState xaResourceHolderState) Create a Job that is going to execute the phase command on the given resource.
protected boolean	isParticipating(XAResourceHolderState xaResourceHolderState) Determine if a resource is participating in the phase or not.
List<XAResourceHolderState>	prepare(BitronixTransaction transaction) Execute phase 1 prepare.

Methods inherited from class bitronix.tm.twopc.AbstractPhaseEngine

collectNotInterestedResources, collectResourcesUniqueNames, executePhase, logFailedResources

Methods inherited from class java.lang.Object

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

Constructor Detail

Preparer

public Preparer(Executor executor)

Method Detail

prepare

public List<XAResourceHolderState> prepare(BitronixTransaction transaction)
                                    throws RollbackException,
                                           BitronixSystemException

Execute phase 1 prepare.

Parameters:

transaction - the transaction to prepare.

Returns:

a list that will be filled with all resources that received the prepare command and replied with XAResource.XA_OK.

Throws:

RollbackException - when an error occured that can be fixed with a rollback.

BitronixSystemException - when an internal error occured.

createJob

protected Job createJob(XAResourceHolderState xaResourceHolderState)

Description copied from class: AbstractPhaseEngine

Create a Job that is going to execute the phase command on the given resource.

Specified by:

createJob in class AbstractPhaseEngine

Parameters:

xaResourceHolderState - the resource that is going to receive a command.

Returns:

the Job that is going to execute the command.

isParticipating

protected boolean isParticipating(XAResourceHolderState xaResourceHolderState)

Description copied from class: AbstractPhaseEngine

Determine if a resource is participating in the phase or not. A participating resource gets a job created to execute the phase's command on it.

Specified by:

isParticipating in class AbstractPhaseEngine

Parameters:

xaResourceHolderState - the resource to check for its participation.

Returns:

true if the resource must participate in the phase.