[Xmldb-org-xupdate] XUpdate processing order

[Philippe P. <Phi...@so...>]

hi,

I thought about solutions for "XUpdate processing order" problem
(posted from John L. Clark 2005-04-27 22:48)

I did my own "XUpdate" that I called "Active Update" that resolves this=20
kind of problems, and fix other things incomplete in the WD, for example=20
alternative and iterative processing.

XUpdate example :
http://disc.inria.fr/perso/philippe.poulard/xml/active-tags/active-tags/a=
ctive-tags.html#N4007F6
(=A72.9)
this example shows an alternative update ; however I didn't implement=20
XUpdate in Active Tags because I consider replacing it with Active Update

Active Update processing order example :
http://disc.inria.fr/perso/philippe.poulard/xml/active-tags/active-tags/a=
ctive-tags.html#x-operation-example
(=A75.5)
this example shows a set operations that are "deferred", that is to say=20
applied after resolving all XPath references ; this is exactly what John=20
L. Clark was expected.

Active Update is also slightly different than XUpdate because it may=20
update objects that are "XML-friendly objects", that is to say some=20
objects that are not XML objects but that can have some XML behaviour ;=20
for example, such object may expose its internal states as XML=20
attributes that may be accessed with XPath and update with Active Update

Active Update is part of a wider framework called Active Tags
Have a look here :
http://disc.inria.fr/perso/philippe.poulard/xml/active-tags/

--=20
Cordialement,

            ///
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|   Philippe Poulard    |
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