[Fwd: RE: [soapbuilders] Question about root (was Re: PEAR SOAP)]

cross posted from soapbuilders as seems relevant here

-------- Original Message --------
Subject: RE: [soapbuilders] Question about root (was Re: PEAR SOAP)
Date: Wed, 17 Apr 2002 11:13:03 -0500
From: "Matt Long" <mlong@PHALANXSYS.COM>
Reply-To: soapbuilders@yahoogroups.com
Organization: Phalanx Systems, LLC
To: <soapbuilders@yahoogroups.com>



+1

 

 >The current state of affairs is pretty messy.

 

Messy!?!  It's a food fight!

 

-Matt

 

-----Original Message-----
From: Pete Hendry [mailto:peter.hendry@capeclear.com]
Sent: Wednesday, April 17, 2002 6:36 AM
To: soapbuilders@yahoogroups.com
Subject: Re: [soapbuilders] Question about root (was Re: PEAR SOAP)

 

On second thoughts, I think enc:root should either

 1. if enc:root is present on any subelement of Body then it MUST be 
present on all subelements of Body
 2. if enc:root is not present then the first subelement of Body is the 
serialization root

I have just been playing with the implementation of this and for 
streaming parsing it makes sense to be able to identify whether a 
subelement is or is not the root when seen. If root is not required on 
subelements before the serialization root then these elements cannot be 
added until the root is found. This adds unecessary complexity. Another 
option is for a default value of "0" and the root must be explicitely 
marked. This pretty much achieves the same as 1. and 2. above but 
requires the root attribute on only the serialization root. The current 
state of affairs is pretty messy.

Pete

Pete Hendry wrote:

>[SOAP1.1/2] "The SOAP root attribute MAY appear on any subelement within the
>
>SOAP Header and SOAP Body elements. The attribute does not have a default
>
>value."
>
>This is not sufficient. There are additional constraints that are not in the
>
>spec. These additional constraints are:
>
>1. the root attribute can only appear in elements that are immediate
>
>  subelements of the Header and Body
>
>2. at most one root attribute can have a value of "1"
>
>3. the root attributes that occur in elements after the serialization
>
>  root MAY be absent but if present MUST have value "0"
>
>4. the root attributes that occur in elements before the serialization
>
>  root MUST be present and MUST have value "0"
>
>
>
>(I hope this is complete)
>
How about



[SOAP1.1/2] "The SOAP root attribute MAY appear on any immediate subelement within the

SOAP Header and SOAP Body elements. The attribute does not have a default

value."



and



    1. there may be a maximum of one occurance with logical value "true"

    2. if there is no occurance with logical value "true" then the first 

subelement without a root attribute is the root



or make the root ="true" manadatory to identify the root.. This would 

simplify things greatly. I frequently find that the use of MAY serves 

only to allow ambiguity and confusion in a specification when a MUST 

would clear things up. In this case a MUST would make the job of a SOAP 

node reading the message much easier.



Pete







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