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Subject: RE: [wsbpel] Implicit <sequence> macro


Frank,

You are right that this would have to be context sensitive - in a <flow>
we already have activity+  -- Yuzo has said that his idea would only
apply where we have activity as a singleton.  Another complication ;-)

Satish

 

-----Original Message-----
From: Frank Leymann [mailto:LEY1@de.ibm.com] 
Sent: Wednesday, June 11, 2003 11:53 PM
To: Satish Thatte
Cc: Yuzo Fujishima; wsbpel@lists.oasis-open.org
Subject: RE: [wsbpel] Implicit <sequence> macro


Satish, Yuzo,

from my point of view the implicit <sequence> assumption is completely
arbitrary:  Some might have parallel ordering in mind, i.e. <flow>
without
any links.

Regards,
Frank

Prof. Dr. Frank Leymann, Distinguished Engineer
Member, IBM Academy
IBM Software Group
-----------------------------------------------------------
Phone1........: +49-7031-16 3998
Phone2........: +49-7056-96 5067
Mobile   .......: +49-172-731 5858





To:    "Yuzo Fujishima" <fujishima@bc.jp.nec.com>,
       <wsbpel@lists.oasis-open.org>
cc:
Subject:    RE: [wsbpel] Implicit <sequence> macro


Yuzo,

If we expected people to directly author processes at this level
something like this would be attractive, but do you really expect that?

Satish


-----Original Message-----
From: Yuzo Fujishima [mailto:fujishima@bc.jp.nec.com]
Sent: Tuesday, June 10, 2003 8:15 PM
To: wsbpel@lists.oasis-open.org
Subject: [wsbpel] Implicit <sequence> macro

Hi,

I would like to propose what may be called "implicit sequence".

Implicit sequence "macro":
If multiple activities are placed in a process definition
where only one activity is allowed per se, assume there is an
implicit sequence activity that contains the activities.

Example:

Regard
  <scope>
   <receive/>
   <invoke/>
   <reply/>
  </scope>
as
  <scope>
   <sequence>     <!-- implicit sequence -->
    <receive/>
    <invoke/>
    <reply/>
   </sequence>
  </scope>

Pros:
* More concise description.

Cons:
* ?

What do you think?

Yuzo Fujishima
NEC Corporation


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