RE: [wsrm] New proposal for Reply to action item

[Scott Werden <scottw@wrq.com>]

As I stated in my earlier email today, it is not clear to me why the
AckRequested element is required for Message Ordering. Message
acknowledgement should be orthogonal to message ordering.

Scott

> -----Original Message-----
> From: Tom Rutt [mailto:tom@coastin.com] 
> Sent: Tuesday, July 29, 2003 1:18 PM
> To: wsrm
> Subject: [wsrm] New proposal for Reply to action item
> 
> 
> Here is a new proposal, which incorporates much of the discussion.
> 
> -----------------
> 
> Modify the definition for the AckRequested element to change 
> the use of the
> 
> terms synchronous and asynchronous to the new terms "reply 
> acknowledgment pattern"
> 
> and "callback acknowledgement pattern".
> 
> Note: This proposal does not make reply to an attribute or 
> sub-element 
> of ackRequested, but includes the faults in the definition for the 
> ackPattern attribute.
> 
> "*3.2.4. AckRequested Element*
> 
> The AckRequested element is an OPTIONAL element. It is REQUIRED for
> 
> guaranteeing message delivery and message order. However this element 
> MUST NOT
> 
> appear in a non-Reliable Message. This element is to be used for a 
> sender to request the
> 
> receiver to send back an Acknowledgment message for the 
> message sent. The
> 
> AckRequested element contains the following attribute:
> 
> - an *ackPattern *attribute
> 
> *(1) ackPattern attribute*
> 
> The ackPattern attribute is an OPTIONAL attribute. This attribute is 
> used to specify
> 
> whether the Acknowledgment Message (or application fault messages) 
> should be sent back directly in the reply to the reliable 
> message or in 
> a separate callback request. This attribute, when used, MUST 
> have one of 
> the following two values.
> 
> The default value of this attribute is "Response", when omitted.
> 
> - *Response *: An Acknowledgment Message (or application 
> Fault message) 
> MUST be sent back directly in the Reply to the Reliable Message.
> 
> - *Callback*: An Acknowledgment Message (or application Fault 
> message) 
> MUST be sent as a callback request, using the address in the 
> ReplyTo element
> 
> - *Poll*: An Acknowledgment Message(or application Fault 
> message) MUST 
> be sent as a response to a poll request
> 
> "
> 
> With this modification the ReplyTo definition can be modified 
> as follows:
> 
> "
> 
> *3.2.2. ReplyTo Element*
> 
> This is an OPTIONAL element, used to specify the initial sender's 
> endpoint to receive a callback
> 
> Acknowledgment message or Fault Message. A value of this 
> element MUST be 
> present in the request
> 
> message if the AckRequested element indicates that the Callback 
> Acknowledgement pattern is requested.
> 
> If present, the ReplyTo element is required to be URL as 
> defined in [RFC 
> 1738].
> 
> "
> 
> 
> -- 
> ----------------------------------------------------
> Tom Rutt		email: tom@coastin.com; trutt@fsw.fujitsu.com
> Tel: +1 732 801 5744          Fax: +1 732 774 5133
> 
> 
> 
> 
> 
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