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Note: I'm not an expert on XACML.
Sun's programmer guide doesn't say anything explicitly on the subject:
http://sunxacml.sourceforge.net/guide.html#extending-function
The standard's appendix section A14.14 seems to imply by omission that there is no special namespace for extension functions. Also, appendix B.3. XACML functions says the relative namespace is
"urn:oasis:names:tc:xacml:1.0:function" and says further that this is "the base of all the identifiers in the table of functions". It says nothing special about extensions, which I would take to mean that the extension function URI is by default the concatenation of the above URI and your extension function name, but from Sun's code that doesn't appear to be right.
Looking at Sun's sample bool-text-compare code, I would guess that the URI would be simply
"bool-text-compare".
Natalie.Krainski@infineon.com wrote:
> Hi,
>
> I don't know if this is the right place to go with my problem, but I think
> it's worth trying.
> I wanted to add a new function (such as string-equal) to my xml (xacml) -
> file. I've written the function in Java, as told at sourceforge.net. I think
> it works, but now I don't know how to integrate this function in my
> xml-file. What URI do I have to use?
>
> I hope someone can help me?!
> thx, Natalie
>
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