[jboss-dev-forums] [Design of JCA on JBoss] - Re: JBossTS/JCA Recovery work for JBoss 4.2

[bill.burke@jboss.com]

anonymous wrote : 2)Provide a serializable wrapper to support XA resource recovery using JBossTS.
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  | It was my plan to use this wrapper both on the inbound and outbound for JCA. From my understanding, this would enable JBossTS to reconsruct the XAResource and call recover as the XAResource (in this case the wrapper) would be written to the transaction log enabling JBossTS to do it's thing.
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One issue with this is that the user that executed the original transaction may not have permission to perform a recovery.  For instance, only a DBA may have the permission to perform recovery on the database.  Also, because the XA spec is a bit ambiguous,  different XAResources of different vendors may have different requirements on what flags you pass into XAResource.recover().  There's also the general problem that some XAResources require Xid padding and others don't.  I'm guessing that JBoss TS solves the latter two problems in very very hacky ways that are easy to break as there is no defined integration contract between JBoss, JBoss JCA, and Arjuna.  I do not know how or if they solve the permission problem.


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