Re: [sca-policy] Can we use appliesTo="sca:binding" or appliesTo="sca:implementation" toselect all bindings or implementations?

[Raymond Feng <rfeng@us.ibm.com>]

I understand the relative path. But my
question was if sca:binding can select elements such as sca:binding.ws
in the substitutionGroup. In the composite files, we only use elements
like binding.ws, implementation.java as the binding or implementation base
element is abstract.

Thanks,
Raymond

---

Raymond Feng
Senior Software Engineer, Apache Tuscany PMC Member & Committer 
IBM Bay Area Lab, 1001 E Hillsdale Blvd, Suite 400,
Foster City, CA 94404, USA
E-mail: rfeng@us.ibm.com,
Notes: Raymond Feng/Burlingame/IBM, Tel: 650-645-8117,
T/L: 367-8117
Apache Tuscany: http://tuscany.apache.org
Co-author of Tuscany In Action: http://www.manning.com/laws

---

ashok malhotra <ashok.malhotra@oracle.com> wrote
on 09/17/2009 02:50:50 PM:

> From:
> 
> ashok malhotra <ashok.malhotra@oracle.com>
> 
> To:
> 
> Raymond Feng/Burlingame/IBM@IBMUS
> 
> Cc:
> 
> sca-policy@lists.oasis-open.org
> 
> Date:
> 
> 09/17/2009 02:52 PM
> 
> Subject:
> 
> Re: [sca-policy] Can we use appliesTo="sca:binding" or 
> appliesTo="sca:implementation" to select all bindings or
implementations?
> 
> Hi Raymond:
> In XPath 1.0 the expression "sca:binding.ws" will select
all nodes 
> called sca:binding that are children of the
> context node.
> 
> Look in the section 2.5 of the spec.  The first bullet says:
> 
>     * |para| selects the |para| element children of the
context node
> 
> All the best, Ashok
> 
> 
> Raymond Feng wrote:
> > There is a statement in the SCA Policy Framework Version 1.1,
> > Committee Draft 02/Public Review 01 – rev4 spec as quoted below:
> >
> > 337 • @appliesTo (0..1) - a string which is an XPath 1.0 expression
> > identifying one or more SCA constructs
> > 338 this policySet can configure. The contents of @appliesTo
MUST 
> > match the XPath 1.0 [XPATH]
> > 339 production /Expr. /[POL30018]
> >
> > We have the following samples as we expect them would select
the 
> > concrete bindings or implementations such as binding.ws or 
> > implementation.java:
> > appliesTo="sca:binding"
> > appliesTo="sca:implementation"
> >
> > Unfortunately such capability is only available in XPath 2.0
where 
> > schema-element() function can be used to test the substitutionGroup.
> > See section 2.5.4.4 Schema Element Test of 
> > http://www.w3.org/TR/xpath20/.
I'm not sure if there are XPath 
> > implementations that support 2.0. At lease the one from JDK only
> > supports 1.0.
> >
> > Are these usages valid? Do we always have to give the concrete
> > elements such as appliesTo="//sca:binding.ws | //sca:binding.jms"?
> >
> > Thanks,
> > Raymond
> > ------------------------------------------------------------------------
> > *Raymond Feng*
> > Senior Software Engineer, Apache Tuscany PMC Member & Committer
> > /IBM Bay Area Lab, 1001 E Hillsdale Blvd, Suite 400, Foster City,
CA 
> > 94404, USA*
> > E-mail*//: //_rfeng@us.ibm.com_/ <mailto:rfeng@us.ibm.com>/,
> > *Notes*//: Raymond Feng/Burlingame/IBM, *Tel*//: 650-645-8117,
> > *T/L*//: 367-8117*
> > Apache Tuscany*//: //_http://tuscany.apache.org_/ 
> > <http://tuscany.apache.org/>/
> > Co-author of Tuscany In Action: //_http://www.manning.com/laws_//
/
> > ------------------------------------------------------------------------

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