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Subject: Re: [xacml] [Polar] PH09: New section 7.4.2 Attributes
> how are functions that expect > single values supposed to deal with the bags that are required to be returned > from AD/AS types? use type-one-and-only function: apply string-equal apply string-one-and-only subj-attr-desig attrid string-uri issuer must-be-present attr-val string-uri hello Simon ----- Original Message ----- From: "Seth Proctor" <seth.proctor@sun.com> To: <xacml@lists.oasis-open.org> Sent: Monday, November 04, 2002 8:53 AM Subject: [xacml] [Polar] PH09: New section 7.4.2 Attributes > > While working on our implementation, I noticed the problem of AD/AS types > always returning bags but almost all standard functions requiring single base > types (and therefore rejecting bags as input). I suggested that one way to > solve this was to treat a bag with a single item the same as that single item > on its own. Text was proposed for this change. There was no discussion on the > list, but the updated change list from Thursday afternoon suggests that this > change suggestion was rejected, with no explination except "Use anyOf." > > Since "Use anyOf" doesn't apply to my change request, and since there is no > other explination for why this was rejected or how I'm supposed to treat > this problem, I am asking my question again: how are functions that expect > single values supposed to deal with the bags that are required to be returned > from AD/AS types? I will once again suggest that text be added that makes > it clear that bags with one element are treated the same as just that one > element on its own. I will also point out that trying to solve this problem > by wrapping AD/AS types in functions that select single values from bags will > result in much larger (and more copmlex) policies, and will increase processing > time dramatically, since all standard functions will require this wrapping. > Making the simple change I have suggested will prevent both of these problems. > > > seth > > ---------------------------------------------------------------- > To subscribe or unsubscribe from this elist use the subscription > manager: <http://lists.oasis-open.org/ob/adm.pl> > > >
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