Issue 3784:  register_resource & SubTransactionAwareResource (ots-rtf)
Source: IONA (Mr. Matthew Newhook, )
Nature: Uncategorized Issue
Severity: 
Summary:   I'm confused by the behaviour of register_resource with respect to
  the SubtransactionAwareResource interface. 
  
  From 99-10-07.pdf:

  "If the resource is a subtransaction aware resource (it supports the
   SubtransactionAwareResource interface) and the transaction associated
   with the target object is a subtransaction, then this operation
   registers the specified resource with the subtransaction and indirectly
   with the top-level transaction when the subtransaction’s ancestors have
   completed. Otherwise, the resource is registered as a participant in the
   current transaction. If the current transaction is a subtransaction,
   the resource will not receive prepare or commit requests until the
   top-level ancestor terminates."

  This seems to vaguely say that the resource will be registered as a
  SubtransactionAwareResource with if the current transaction is a
  subtransaction.

  However, later in the second paragraph of 10.3.9:

  "Certain recoverable objects may want a finer control over the
   registration in the completion of a subtransaction. These recoverable
   objects will use the register_resource operation to ensure participation
   in the completion of the top-level transaction and they will use the
   register_subtran_aware operation to be notified of the completion of
   a particular subtransaction."

 This says pretty clearly that the application has to call both
 register_resource and register_subtran_aware to be registered as a
 resource in the transaction and to receive
 commit_subtransaction/rollback_subtransaction callbacks.

 What is the intended behaviour?

Resolution: 
Revised Text: 
Actions taken:
August 14, 2000: received issue
Discussion: 

End of Annotations:=====
Date: Mon, 14 Aug 2000 13:10:44 -0230
From: Matthew Newhook <matthew@ooc.com>
To: ots-rtf@omg.org
Subject: register_resource & SubTransactionAwareResource
Message-ID: <20000814131044.A2019@ooc.com>
Mime-Version: 1.0
Content-Transfer-Encoding: 8bit
X-Mailer: Mutt 1.0pre3us
Content-Type: text/plain; charset=iso-8859-1
X-UIDL: MBj!!+\N!!WIJ!!9*a!!

Hi,

  I'm confused by the behaviour of register_resource with respect to
  the SubtransactionAwareResource interface. 
  
  From 99-10-07.pdf:

  "If the resource is a subtransaction aware resource (it supports the
   SubtransactionAwareResource interface) and the transaction
   associated
   with the target object i   completed. Otherwise, the resource is
   registered as a participant in the
   current transaction. If the current transaction is a
   subtransaction,
   the resource will not receive prepare or commit requests until the
   top-level ancestor terminates."

  This seems to vaguely say that the resource will be registered as a
  SubtransactionAwareResource with if the current transaction is a
  subtransaction.

  However, later in the second paragraph of 10.3.9:

  "Certain recoverable objects may want a finer control over the
   registration in the completion of a subtransaction. These
   recoverable
   objects will use the register_resource operation to ensure
   participation
   in the completion of the top-level transaction and they will use
   the
   register_subtran_aware operation to be notified of the completion
   of
   a particular subtransaction."

 This says pretty clearly that the application has to call both
 register_resource and register_subtran_aware to be registered as a
 resource in the transaction and to receive
 commit_subtransaction/rollback_subtransaction callbacks.

 What is the intended behaviour?

Regards, Matthew
-- 
Matthew Newhook                         E-Mail: mailto:matthew@ooc.com
Software Designer                       WWW:    http://www.ooc.com
Object Oriented Concepts, Inc.          Phone:  (709) 738-3725
s a subtransaction, then this operation
   registers the specified resource with the subtransaction and
   indirectly
   with the top-level transaction when the subtransactio