RE: [wsbpel] Issue 13 - Proposed Resolution

["John Evdemon" <jevdemon@microsoft.com>]

+1 

Much cleaner.

 

John

 

> -----Original Message-----

> From: rkhalaf [mailto:rkhalaf@watson.ibm.com]

> Sent: Sunday, December 07, 2003 10:57 AM

> To: wsbpel@lists.oasis-open.org

> Subject: [wsbpel] Issue 13 - Proposed Resolution

> 

> The proposal is to replace "query" from being an attribute to

> being an

> element. This would affect <from>, <to> and <propertyAlias>.

> This would

> gear up for using other languages for querying that may have a

> structured syntax. An example is the upcoming XQueryX, a

> proposal for

> XQuery using XML syntax.   The case for string queries is also

> shown below.

> 

> Current syntax:

> 

> <wsbp:from variable="ncname" part="ncname"?

> query="queryString"?/>

> 

> Proposed syntax

> 

> <wsbp:from variable="ncname" part="ncname"?>

>    <wsbp:query> ?

>     query goes here

>    </wsbp:query>

> </wsbp:from>

> 

> For example, an XPath 1.0 query would be encoded:

> 

> <wsbp:from variable="ncname" part="ncname"?>

>    <wsbp:query>

>    /shipNotice/ShipNoticeHeader/shipOrderID

>    </wsbp:query>

> </wsbp:from>

> 

> This solution is lightweight in syntax, and assumes that a

> single query

> language is used in each process definition, just as in the

> current

> spec. I don't think we need to go beyond that and enable a mix

> of query

> languages.

> 

> 

> -Rania & Paco

> 

> 

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