wsbpel-reqts message

Subject: Issue - 30 - Support for coordination protocol

From: ws-bpel issues list editor<peter.furniss@choreology.com>
To: wsbpel-reqts@lists.oasis-open.org
Date: Thu, 26 Jun 2003 18:38:29 +0100

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Issue - 30 - Support for coordination protocol

Submitter: Assaf Arkin
Date submitted: 25 June 2003
Categories: enhancement
Document: Specification
Description:

Support for use of coordination protocols for invoking services by process and when process invoked by another service.

Clarify use of coordination protocol to: - Establish a shared execution context with a shared outcome - Cancellation of any pending work at the request of the coordinator - Notification of completion or failure by the participant - Compensation of any completed work at the request of the coordination - Notification of (compensation) completion or failure by the participant

Clarify how a compensation handler in the process is used to invoke compensation handler of a service such coordinated. Clarify how the compensation handler of the process is invoked by such a service. Clarify how parameters are passed to and from compensation handler when invoked in such a manner.

Clarify the relationship between the scope in which an invocation is performed and the context that governs the coordination, where to wait for the completion of work by the participant, when to cancel such work, and how to be notified of general failure.

Also, investigate means to determine whether service supports coordination as part of the process definition (where only its interface is known), and how a process advertises this capability as part of its interface definition, e.g. using WSDL 1.2 F&P.

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