Re: [sca-policy] [DISCUSSION] Intent Qualifier XSD does not provideextensibility

[David Booz <booz@us.ibm.com>]

I think we informally agreed that this needs to be opened as a new issue to
clean it up.

Dave Booz
STSM, BPM and SCA Architecture
Co-Chair OASIS SCA-Policy TC and SCA-J TC
"Distributed objects first, then world hunger"
Poughkeepsie, NY (845)-435-6093  or  8-295-6093
e-mail:booz@us.ibm.com


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  |Mike Edwards <mike_edwards@uk.ibm.com>                                                                                                            |
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  |"OASIS Policy" <sca-policy@lists.oasis-open.org>                                                                                                  |
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  |12/14/2009 04:18 AM                                                                                                                               |
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  |[sca-policy] [DISCUSSION] Intent Qualifier XSD does not provide extensibility                                                                     |
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Folks,

While investigating the question of second level qualifiers I notice that
the XSD for intent qualifiers does not
provide for any extensibility.

The intent complex type has the usual <any/> as part of its definition:

        <complexType name="Intent">
                <sequence>
                        <element name="description" type="string"
minOccurs="0"
                           maxOccurs="1" />
                        <element name="qualifier"
type="sca:IntentQualifier"
                           minOccurs="0" maxOccurs="unbounded" />
                        <any namespace="##other" processContents="lax"
                           minOccurs="0" maxOccurs="unbounded"/>
                </sequence>
                <attribute name="name" type="NCName" use="required"/>
                <attribute name="constrains" type="sca:listOfQNames"
                   use="optional"/>
                <attribute name="requires" type="sca:listOfQNames"
                   use="optional"/>
                <attribute name="excludes" type="sca:listOfQNames"
                   use="optional"/>
                <attribute name="mutuallyExclusive" type="boolean"
                   use="optional" default="false"/>
                <attribute name="intentType"
                        type="sca:InteractionOrImplementation"
                        use="optional" default="interaction"/>
                <anyAttribute namespace="##other" processContents="lax"/>
        </complexType>

...by contrast, the IntentQualifier type has no such extension point:

        <complexType name="IntentQualifier">
                <sequence>
                        <element name="description" type="string"
minOccurs="0"
                           maxOccurs="1" />
                </sequence>
                  <attribute name="name" type="NCName" use="required"/>
                  <attribute name="default" type="boolean" use="optional"
                     default="false"/>
        </complexType>

...was this lack of extensibility intended or is it simply an oversight?

A simple change is to add

                        <any namespace="##other" processContents="lax"
                           minOccurs="0" maxOccurs="unbounded"/>

at the end of the sequence in the IntentQualifier definition.


Yours,  Mike.

Strategist - Emerging Technologies, SCA & SDO.
Co Chair OASIS SCA Assembly TC.
IBM Hursley Park, Mail Point 146, Winchester, SO21 2JN, Great Britain.
Phone & FAX: +44-1962-818014    Mobile: +44-7802-467431
Email:  mike_edwards@uk.ibm.com






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