Re: [sca-c-cpp] NEW ISSUE: Clarify Request Scope lifetime

This issue has been assigned id CCPP-37
in the Jira system. 

See http://www.osoa.org/jira/browse/CCPP-37

Andrew

____________________________________________________________

Andrew Borley

Websphere ESB Development

Tel: 245393 Ext: +44 (0) 1962 815393 Mob: +44 (0) 7971 805547

E-mail: 

Mailpoint 211, IBM (UK) Ltd, Hursley Park, Winchester, Hants, SO21 2JN

____________________________________________________________

Bryan Aupperle <>

07/03/2008 18:00

To



cc

Subject

[sca-c-cpp] NEW ISSUE: Clarify Request
Scope lifetime

TARGET: SCA C++ and C Specification sections titled "Request Scope"
 (2.3.2 of WD 04)

DESCRIPTION: 

The section currently contains the following sentence: 

"The lifecycle of request scope extends from the point a request on
a remotable interface enters the SCA runtime and a thread processes that
request until the thread completes synchronously processing the request."

From this description, it is not clear whether the request scope lasts
through a remotable call to another component that happens to be local.
In one possible interpretation it would depend on the binding. A call through
a web service binding would be seen as changing threads, and therefore
would be a new request scope. The same call through an SCA binding might
be assumed to remain within the thread and therefore be within the same
scope. 

It is probably a bad idea for the scope to depend on the binding that is
used, and it may even be a bad idea for the scope to depend on whether
a call through a remotable interface _happens_ to be local. 

PROPOSALS: 

None yet - wait on Assembly TC action. 

Bryan Aupperle, Ph.D.

STSM, WebSphere Enterprise Platform Software Solution Architect

Master Inventor

Research Triangle Park,  NC 

+1 919-254-7508 (T/L 444-7508)

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