[jboss-jira] [JBoss JIRA] (AS7-2076) activation/passivation of extended persistence context

[Scott Marlow (Commented) (JIRA)]

    [ https://issues.jboss.org/browse/AS7-2076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12634834#comment-12634834 ] 

Scott Marlow commented on AS7-2076:
-----------------------------------

When the EJB3 container passivates an extended persistence context, all of the SFSBs that reference the extended persistence context will also need to be passivated.

I mentioned needing some SPI above for clustering.  I think that the EJB3 container will probably also need to use the SPI.  I'm thinking of two method calls:

1.  void serializeXPCStart()
2.  SessionID[] serializeXPCFinish()

Where SessionID is from StatefulSessionComponentInstance.getId().

Note:  perhaps SFSBPCMap could change to just storing the SessionID obtained from StatefulSessionComponentInstance.getId().
                
> activation/passivation of extended persistence context
> ------------------------------------------------------
>
>                 Key: AS7-2076
>                 URL: https://issues.jboss.org/browse/AS7-2076
>             Project: Application Server 7
>          Issue Type: Task
>          Components: JPA / Hibernate
>    Affects Versions: 7.1.0.Alpha1
>            Reporter: Scott Marlow
>            Assignee: Scott Marlow
>             Fix For: 7.1.0.Beta1
>
>
> Currently, SFSBXPCMap directly references ExtendedEntityManager.  ExtendedEntityManager implements the extended persistence context (contains a direct reference of the underlying persistence context.
> To support activation/passivation.  SFSBXPCMap should instead reference the XPC via an uuid (or something like that), that can be used to get the XPC (if SFSB is in activated state).
> Note EJB 3.1 specification section 4.2.1 titled Instance Passivation and Conversational State:
> "
> A container must not passivate a stateful session bean with an extended persistence context unless the
> following conditions are met:[9]
>  * All the entities in the persistence context are serializable.
>  * The EntityManager is serializable.
> [9] The container is not permitted to destroy a stateful session bean instance because it does not meet these requirements.
> "

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