Re: [wsbpel] Issue - 157 - Proposal For Vote

[Ron Ten-Hove <Ronald.Ten-Hove@Sun.COM>]

Satish,

    This simplication was raised, in a slightly more general form, as 
issue 48, which was closed with no changes to the spec. If I recall 
correctly, transformation support was dismissed as a form of external 
service, so <invoke> is the right way to do transformation. The 
"heavyweight" invocation of a service to perform such transformations 
was not considered to be impractical. Also, there was a sizeable group 
in the TC that disliked XSLT.

    Given our recent foray into XML manipulation (<assign> and <copy>), 
we doubtless have developed a better appreciation of XSLT and similar 
technologies. I certainly agree that we should not reinvent the wheel 
here, which <copy> seems dangerously close to doing.

    Are we prepared to revisit issue 48? It is NOT marked as revistable, 
so we would need to take the unpopular course of reopening a closed 
issue. I believe circumstances have changed, and it would be appropriate 
to revisit this issue in the context of 157.

-Ron

Satish Thatte wrote:

>In the spirit of drastic simplification of the whole xII mess, a naive question:  what is wrong with inventing an activity based on XSLT that is rather like a web service invoke (XML in, XML out) but is a local activity that is defined by a (possibly inlined) XSLT script rather than a web service?
> 
>We have said several times that copy is really not needed except for the fact that calling web services for simple data transformation is too heavyweight and expensive though theoretically workable.  XSLT seems to have all the benefits of minimality and simplicity in BPEL without the runtime expensiveness of real remote web services.
> 
>Am I missing something?
>
>________________________________
>
>From: Alex Yiu [mailto:alex.yiu@oracle.com]
>Sent: Thu 6/2/2005 9:06 AM
>To: wsbpeltc
>Cc: ygoland@bea.com; Alex Yiu
>Subject: Re: [wsbpel] Issue - 157 - Proposal For Vote
>
>
>
>
>Hi all,
>
>After dinner last nite, I had a late nite 157 conversation with Yaron.
>Here is the attempt to recap the content that we have discussed so far.
>(I added some extrapolation of my own. Hopefully, those are reasonable
>to Yaron)
>
>Thanks!
>
>
>
>Regards,
>Alex Yiu
>
>
>
>
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