Re: [sca-assembly] ISSUE 254: Names of channels should allow "/", should bedeclared as URIs....

[Peter Niblett <peter_niblett@uk.ibm.com>]

Apologies Anish, I was using a version
from last year - the section in question had been explicitly added so I
assumed it was still current.. However I was puzzled about  how it
related to the "remove multiple bindings" issue. 

I will use the new wd03 from now on.

Peter Niblett
IBM Senior Technical Staff Member
Member of the IBM Academy of Technology
+44 1962 815055
+44 7825 657662 (mobile)




From:      
 Anish Karmarkar <Anish.Karmarkar@oracle.com>
To:      
 sca-assembly@lists.oasis-open.org
Date:      
 01/02/2011 15:32
Subject:    
   Re: [sca-assembly]
ISSUE 254: Names of channels should allow "/", should be declared
as URIs....

---

On 2/1/2011 6:11 AM, Peter Niblett wrote:
> Eric
>
> In path oriented addressing schemes (like files in a hierarchical
file
> systems), the last (leaf) part of the path is often the name of the
> object itself, while the rest of the path describes the context in
which
> it is situated (and also disambiguates multiple objects that have
the
> same name). So, a bit like Martin says, I am wondering what you are
> asking for is actually a way to define some kind of formal relationship
> between channels, and that it would be better to tackle that question,
> rather than allow a syntax which could allow some people to inter
a
> relationship by convention.
>
> Also we say that you can reference a channel binding by taking the
URI
> of the channel and appending /bindingname. So if you allow global
> channels to have / in their channel names, then you could have a channel
> called //A with a binding called B and also a channel called //A/B
-
> both of which would have the same URI.

I thought we got rid of this, now that we have restricted channels to a
single binding.

-Anish
--

>
> Regards
>
> Peter Niblett
> IBM Senior Technical Staff Member
> Member of the IBM Academy of Technology
> +44 1962 815055
> +44 7825 657662 (mobile)
>
>
>
>
> From: Martin Chapman <MARTIN.CHAPMAN@ORACLE.COM>
> To: OASIS SCA Assembly <sca-assembly@lists.oasis-open.org>
> Date: 01/02/2011 13:48
> Subject: [sca-assembly] ISSUE 254: Names of channels should allow
"/",
> should be declared as URIs....
> ------------------------------------------------------------------------
>
>
>
> The only concern I have about this issue/proposal is that its seems
to
> imply that there is a relationship between global channels that is
> somehow understood by the SCA Runtime. As currently defined there
are no
> architectural relationships between global channels, which is why
I
> think we originally settled on a NCname. Changing this to a URI might
> allow a user to imply some relationship between global channels, but
an
> SCA Runtime will not be aware of such relationships.
>
> Martin.
>
> *From:* Mike Edwards [mailto:mike_edwards@uk.ibm.com]
*
> Sent:* 31 January 2011 22:50*
> To:* OASIS SCA Assembly*
> Subject:* Re: [sca-assembly] NEW ISSUE: (1.2) Names of channels should
> allow "/", should be declared as URIs....
>
>
> Logged as _http://www.osoa.org/jira/browse/ASSEMBLY-! 254_
> <http://www.osoa.org/jira/browse/ASSEMBLY-254>
>
> Yours, Mike
>
> ------------------------------------------------------------------------
> Dr Mike Edwards            
     Mail Point 146, Hursley Park    
             
> STSM                
 Winchester, Hants SO21 2JN
> SCA & Services Standards          
       United Kingdom
> Co-Chair OASIS SCA Assembly TC          
               
        
> IBM Software Group            
               
      
> Phone:                
 +44-1962 818014          
               
        
> Mobile:                
 +44-7802-467431 (274097)          
               
        
> e-mail:                
 mike_edwards@uk.ibm.com          
               
        
>
>
>
>
> From:                
 Eric Johnson <eric@tibco.com>
> To:                
 OASIS SCA Assembly <sca-assembly@lists.oasis-open.org>
> Date:                
 31/01/2011 18:24
> Subject:              
   [sca-assembly] NEW ISSUE: (1.2) Names of channels
should allow
> "/", should be declared as URIs....
>
>
>
> ------------------------------------------------------------------------
>
>
>
>
> Title: Names of channels should allow "/" character, and
should be
> declared as URIs....
>
> Target: Assembly 1.2 WD 03
>
> Description:
>
> As declared in section 5.7, the name of a channel is defined as an
> NCName. However, NCNames do not allow for "/".
>
> All references to channels use the type "xs:anyURI", but
ironically, we
> don't allow for "/" in the names of channels. Further, there's
> potentially a discrepancy between a URI and NCNames. To be consistent,
> we should use xs:anyURI for both the definition & the references.
>
> While this capability may not add much for private/local channels,
for
> the purposes! of global domain channels, this facilitates a natural
> hierarchy of global domain channels following the well-accepted practice
> of using "/" to indicate hierarchy.
>
> Proposal:
>
> Change the type of the "@name" attribute on channel to be
of type
> xs:anyURI. Note the caveat that this must conform to the "path-rootless"
> production from part 3.3 of RFC 3986. In other words, it cannot start
> with a scheme, nor a "/".
>
> -Eric.
>
>
> ---------------------------------------------------------------------
> To unsubscribe from this mail list, you must leave the OASIS TC that
> generates this mail. Follow this link to all your TCs in OASIS at:_
> __https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php_
>
>
>
>
>
> ------------------------------------------------------------------------
>
> /Unless stated otherwise above:
> IBM United Kingdom Limited - Registered in England and Wales with
number
> 741598.
> Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire
PO6 3AU/
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe from this mail list, you must leave the OASIS TC that
> generates this mail. Follow this link to all your TCs in OASIS at:
> https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php
>
>
>
> ------------------------------------------------------------------------
>
> /
> /
>
> /Unless stated otherwise above:
> IBM United Kingdom Limited - Registered in England and Wales with
number
> 741598.
> Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire
PO6 3AU/
>
>
>
>
>
>

---------------------------------------------------------------------
To unsubscribe from this mail list, you must leave the OASIS TC that
generates this mail.  Follow this link to all your TCs in OASIS at:
https://www.oasis-open.org/apps/org/workgroup/portal/my_workgroups.php

---

Unless stated otherwise above:
IBM United Kingdom Limited - Registered in England and Wales with number 741598.
Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU