RE: [sca-policy] ISSUE 50: Should WS-Policy be subset for inclusionin policySets?

["Joshi, Kaanu" <Kaanu.Joshi@patni.com>]

Hi,

A new issue has been created in the SCA Policy JIRA. The link for this issue is http://www.osoa.org/jira/browse/POLICY-50


Kaanu Joshi
Expect A Miracle!

-----Original Message-----
From: ashok malhotra [mailto:ashok.malhotra@oracle.com]
Sent: Thursday, April 17, 2008 3:09 AM
To: OASIS Policy
Subject: [sca-policy] NEW ISSUE: Should WS-Policy be subset for inclusion in policySets?

TARGET: SCA Policy Framework

TITLE : Should WS-Policy be subset for inclusion in policySets?

DESCRIPTION:

As you know, WS-Policies can be included directly in policySets either
by reference or by inclusion. Consider, now, a WS-Policy that includes the

ExactlyOne operator. For example:

<wsp:Policy>
<wsp:ExactlyOne>
<wsp:All>
<!-Authorization assertion -->
<!-- rm_1_0 assertion ->
</wsp:All>
<wsp:All>
<!-- Authorization assertion -->
</wsp:All>
</wsp:ExactlyOne>

If this was wrapped in a policySet that had @provides = 'authorization'
what would you get? Authorization, or authorization plus
ReliableMessaging. The answer is unclear in the SCA Policy Framework
specification. Thus, we recommend subsetting WS-Policy so that only
simple policies without alternatives are included within policySets.

PROPOSAL:

WS-Policy based policies that are written to be directly included in
policySets must have the following structure. The ExactlyOne operator in
WS-Policy is disallowed The 'ignorable' and 'optional' attributes are
also disallowed

<wsp:Policy>
<wsp:ExactlyOne>
<wsp:All>
<!-- assertion -->

<!-- assertion -->

...

<!-- assertion -->
</wsp:All>
</wsp:ExactlyOne>



--
All the best, Ashok

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