Is XQuery Updates an option for you?
http://www.w3.org/TR/xqupdate/
I think it gives you the functionality you need.
Jonathan
Farrukh Najmi wrote:
>
> I am working on a specification for a service that offers CRUD
> operations on XML documents that conform to a standard schema.
> We have C, R and D under control and are looking for an good
> standards-based solution for supporting partial updates for XML
> documents already in the server.
>
> I would like to define the schema for an UpdateRequest which
> identifies a server resident XML document by its unique id and provides
> an XML element (lets call it UpdateInfo) that encapsulates how the
> server resident object should be updated. The content of the UpdateInfo
> element should specify how to partially update the desired XML
> document while leaving the rest of it unchanged.
>
> I am unfamiliar with XQuery but I suspect that it may be allow me to
> embed an XQuery statement within the UpdateInfo element to specify how
> to partially update the target XML document. The server would fetch
> the XML document by its id and then process it using the XQuery to
> modify it before storing it back.
>
> Another option might be to use simpler XPath/XSLT expressions to do
> the same.
>
> Does any one have any experience or advice on how best to do this.
>
> BTW, the specification I am working on is OASIS ebXML RegRep 4.0.
>
> TIA for your help.
>
