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Subject: Re: [bpel4people] BP-110: Lean Task - how should we explain the restrictionof interface in lean tasks schema
Hi Phil, one more w.r.t. the XML Schema for lean tasks ...
We closed BP-110 today with no action as the spec has the correct pseudo
schema notation for lean tasks. It also has the "?" on the interface for
tasks.
The point about all of this is that
-- tasks have an interface but no messageSchema
-- lean tasks have a messageSchema but no interface
-- all other elements and attributes are the same
The editors have not yet added the XML Schema changes in ws-humantask.xsd
-- I will take an action item to to fix that.
I was investigating the XML Schema complex type derivation by restriction
again (
http://www.w3.org/TR/2004/PER-xmlschema-0-20040318/primer.html#DerivByRestrict
), and found that the base type may have a (minOccurs,maxOccurs)=(0,1) and
the derived type can make it either (0,0) or (1,1) !!!
As a result, in the attachment, I defined a new abstract "tTaskBase" with
(minOccurs,maxOccurs)=(0,1) for both interface and messageSchema.
The derived "tTask" has (1,1) for the interface and (0,0) for the
messageSchema.
The derived "tLeanTask" has (0,0) for the interface and (1,1) for the
messageSchema.,
This would precisely describe both types such that the "?" in the pseudo
schema for Task can go away again.
Please have a look at the attached artifact.
(See attached file: bp-79 - ws-humantask.xsd)
Kind Regards
Dieter König
Senior Technical Staff Member, WebSphere Process Server Architect
IBM Software Group, Application and Integration Middleware Software
WSS Business Process Solutions
Phone: +49-7031-16-3426 IBM Deutschland (Embedded
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E-Mail: dieterkoenig@de.ibm.com Schönaicher Str. 220
71032 Böblingen
Germany
IBM Deutschland
Research &
Development
GmbH /
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Aufsichtsrats:
Martin Jetter
Geschäftsführung:
Erich Baier
Sitz der
Gesellschaft:
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Registergericht:
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Stuttgart, HRB
243294
From: Luc Clément <luc.clement@activevos.com>
To: Alex Malek <alexma@exchange.microsoft.com>, "bpel4people@lists.oasis-open.org" <bpel4people@lists.oasis-open.org>
Date: 19.06.2009 19:10
Subject: [bpel4people] BP-110: Lean Task - how should we explain the restriction of interface in lean tasks schema
Assigned http://www.osoa.org/jira/browse/BP-110
From: Alex Malek [mailto:alexma@exchange.microsoft.com]
Sent:: Friday, June 19, 2009 12:36
To: bpel4people@lists.oasis-open.org
Subject: [bpel4people] New Issue: Lean Task - how should we explain the
restriction of interface in lean tasks schema
From the F2F, an issue the TC saw needing to be addressed after Issue 79 is
resolved. Thanks, alex
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