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 package org.jboss.jbossts.xts.recovery.participant.ba;
 
 
an interface implemented by applications which wish to be involved in recovering saved participants after a crash.
public interface XTSBARecoveryModule
{
    
called during recovery processing to allow an application to identify a participant id belonging to one of its participants and recreate the participant by deserializing it from the supplied object input stream. n.b. this is only appropriate in case the original was a ParticipantCompletion participant saved using serialization.

Parameters:
id the id used when the participant was created
stream a stream from which the application should deserialise the participant if it recognises that the id belongs to the module's application
Returns:
the deserialized ParticipantCompletion participant
Throws:
java.lang.Exception if an error occurs deserializing the ParticipantCompletion participant
called during recovery processing to allow an application to identify a participant id belonging to one of its participants and use the saved recovery state to recreate the participant. n.b. this is only appropriate in case the original was a ParticipantCompletion participant saved after being converted to a byte array using the PersistibleBAParticipant interface.

Parameters:
id the id used when the participant was created
recoveryState a byte array returned form the original participant via a call to method getRecoveryState of interface PersistableBAParticipant
Returns:
the recreated ParticipantCompletion participant
Throws:
java.lang.Exception if an error occurs converting the recoveryState back to a ParticipantCompletion participant
    recreateParticipantCompletionParticipant(String idbyte[] recoveryStatethrows Exception;

    
called during recovery processing to allow an application to identify a participant id belonging to one of its participants and recreate the participant by deserializing it from the supplied object input stream. n.b. this is only appropriate in case the original was a CoordinatorCompletion participant saved using serialization.

Parameters:
id the id used when the participant was created
stream a stream from which the application should deserialise the participant if it recognises that the id belongs to the module's application
Returns:
the deserialized ParticipantCompletion participant
Throws:
java.lang.Exception if an error occurs deserializing the CoordinatorCompletion participant
called during recovery processing to allow an application to identify a participant id belonging to one of its participants and use the saved recovery state to recreate the participant. n.b. this is only appropriate in case the original was a CoordinatorCompletion participant saved after being converted to a byte array using the PersistibleBAParticipant interface.

Parameters:
id the id used when the participant was created
recoveryState a byte array returned form the original participant via a call to method getRecoveryState of interface PersistableBAParticipant
Returns:
the recreated ParticipantCompletion participant
Throws:
java.lang.Exception if an error occurs converting the recoveryState back to a CoordinatorCompletion participant
    recreateCoordinatorCompletionParticipant(String idbyte[] recoveryStatethrows Exception;

    
participant recovery modules may need to perform special processing when the a recovery scan has completed. in particular it is only after the first recovery scan has completed they can identify whether locally prepared changes are accompanied by a recreated participant and roll back changes for those with no such participant.
    public void endScan();
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