Re: [wsbpel] Issue - 11 Your opinion requested

[David RR Webber - XML ebusiness <Gnosis_@compuserve.com>]

Message text written by Danny van der Rijn
>
neither proposal was meant to do the things that XSLT can do.  i fully
support the issue to add XSLT support to BPEL.  however, there is, IMO, a
great need for something to provide small, local manipulations to XML trees.
something along the lines of the <assign> activity, but not quite so
crippled.  XSLT is too heavyweight to use for a simple append operation, for
instance.
<<<<<<<<<<<<<<<<<<

Danny,

The ExternalMapping section of CAM could be utilized for
this - where you are simply moving content around,
there's also a set of manipulation functions if modest
rendering is needed.  The <AssemblyStructure> section
can be used to reference the structure layout(s) as
needed - and could reference an XSD.

Here's an example of the mapping section, using XPath
locators for the source and target locations:

<ExternalMapping>
 <ContentAssociation>
  <Description>Product List</Description>
  <InputSource input="as:default" structure="as:default"/>
  <OutputStore type="XML" location="as:product_table"/>
  <RulesSet>
   <MapRule output="/Products_List/*" input="@STARTGRP()"/>
   <MapRule output="type" 
		input="Sales/Company/Year/Qtr/Product@type"/>
   <MapRule output="name" 
		input="@trim(Sales/Company/Year/Qtr/Product/Item@name)"/>
   <MapRule output="manufacturer"
		input="Sales/Company/Year/Qtr/Product/Item@manufacturer"/>
   <MapRule output="value"
		input="Sales/Company/Year/Qtr/Product/Item@value"/>
   <MapRule output="sold"
		input="Sales/Company/Year/Qtr/Product/Item@sold"/>
   <MapRule output="Products_List" input="@ENDGRP()"/>
  </RulesSet>
 </ContentAssociation>
</ExternalMapping>      

Thanks, DW.