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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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