FW: Action item 2005-09-30

"David Orchard" <[email protected]>
Newsgroups gmane.text.xml.distributed
Message-ID <[email protected]> 
FYI, I believe this contains a new async SOAP binding.

 

Dave

 

  _____  

From: [email protected]
[mailto:[email protected]] On Behalf Of Yalcinalp,
Umit
Sent: Monday, October 24, 2005 1:08 PM
To: [email protected]
Subject: Action item 2005-09-30

 

Folks, 

Please find our proposal which is modified from our original posting to
the async tf. 

We realize that the proposal may be simplified if we were to eliminate
some of the requirements as we listed them, however we decided to send
it so that we can sort them out in the wg. <<ProposalTake3.htm>> 

 

--umit
ProposalTake3.htm (text/html, 70.8 KB) 
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<body lang=EN-US link=blue vlink=blue style='tab-interval:.5in'>

<div class=Section1>

<h1 align=center style='text-align:center'><span class=SpellE>Async</span>
Extension for SOAP1.1/HTTP</h1>

<h2 align=center style='text-align:center'><span style='font-size:14.0pt;
mso-bidi-font-size:18.0pt'>Proposed by:<o:p></o:p></span></h2>

<p class=MsoNormal align=center style='text-align:center'><span class=SpellE><b
style='mso-bidi-font-weight:normal'>&Uuml;mit</b></span><b style='mso-bidi-font-weight:
normal'> <span class=SpellE>Yal&ccedil;&#305;nalp</span> (SAP), <span
class=SpellE>Anish</span> <span class=SpellE>Karmarkar</span> (Oracle),
Francisco Curbera and Katy <span class=SpellE>Warr</span> (IBM)<o:p></o:p></b></p>

<p class=MsoNormal><b style='mso-bidi-font-weight:normal'><o:p>&nbsp;</o:p></b></p>

<p class=MsoNormal><b style='mso-bidi-font-weight:normal'>Contents: <o:p></o:p></b></p>

<ol style='margin-top:0in' start=1 type=1>
 <li class=MsoNormal style='mso-list:l4 level1 lfo1;tab-stops:list .5in'><b
     style='mso-bidi-font-weight:normal'>Motivation<o:p></o:p></b></li>
 <li class=MsoNormal style='mso-list:l4 level1 lfo1;tab-stops:list .5in'><b
     style='mso-bidi-font-weight:normal'>Requirements<o:p></o:p></b></li>
 <li class=MsoNormal style='mso-list:l4 level1 lfo1;tab-stops:list .5in'><b
     style='mso-bidi-font-weight:normal'>Proposal <o:p></o:p></b></li>
 <ol style='margin-top:0in' start=1 type=a>
  <li class=MsoNormal style='mso-list:l4 level2 lfo1;tab-stops:list 1.0in'><b
      style='mso-bidi-font-weight:normal'>Detailed Proposal for WS-Addressing
      WSDL Binding Document<o:p></o:p></b></li>
  <li class=MsoNormal style='mso-list:l4 level2 lfo1;tab-stops:list 1.0in'><b
      style='mso-bidi-font-weight:normal'>Addendum to the WS-Addressing SOAP
      Binding Document<o:p></o:p></b></li>
 </ol>
 <li class=MsoNormal style='mso-list:l4 level1 lfo1;tab-stops:list .5in'><b
     style='mso-bidi-font-weight:normal'>SOAP 1.2/HTTP and WSDL 2.0<o:p></o:p></b></li>
 <li class=MsoNormal style='mso-list:l4 level1 lfo1;tab-stops:list .5in'><b
     style='mso-bidi-font-weight:normal'>Open Issues<o:p></o:p></b></li>
</ol>

<h2><span style='font-size:14.0pt'>1. Motivation: <o:p></o:p></span></h2>

<h2><span style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>As
we all know, the usage of WS-Addressing is limited in its current form. This
proposal defines an addition to the <span class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span>
element in the WS-Addressing WSDL binding to indicate an extension specific to
SOAP 1.1/HTTP binding.<span style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></h2>

<h2><span style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>The
current SOAP 1.1/HTTP binding does not allow response messages or fault
messages to be sent over a different HTTP connection from that of the request
message.<span style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></h2>

<h2><span style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>Without
an extension to SOAP/HTTP bindings, the <span class=SpellE>wsa<span
class=GramE>:ReplyTo</span></span> and <span class=SpellE>wsa:FaultTo</span>
headers (and any response header that uses WS-A semantics) can not contain <span
class=SpellE>URIs</span> other than the normative Anonymous address as defined
by WS-Addressing specification. This precludes any asynchronous use case when
using SOAP 1.1/HTTP (as well as SOAP 1.2/HTTP).<span
style='mso-spacerun:yes'>&nbsp; </span>Clearly, an extension to the SOAP
1.1/HTTP binding is needed to indicate that additional transport level support
may be provided when WS-Addressing is available. Furthermore, this extension
MUST be expressible within WSDL 1.1 documents to indicate the support for
asynchronous SOAP 1.1/HTTP binding.<span style='mso-spacerun:yes'>&nbsp;
</span><o:p></o:p></span></h2>

<h3>2. Requirements: </h3>

<h2><span style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>We
have considered the following requirements in writing this proposal:<span
style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></h2>

<p class=MsoNormal>SOAP level requirement:</p>

<ol style='margin-top:0in' start=1 type=1>
 <li class=MsoNormal style='mso-list:l7 level1 lfo2;tab-stops:list .5in'>Ability
     to transfer/transport a SOAP request over an HTTP request</li>
 <li class=MsoNormal style='mso-list:l7 level1 lfo2;tab-stops:list .5in'>Ability
     to get back a SOAP response over an HTTP response</li>
 <li class=MsoNormal style='mso-list:l7 level1 lfo2;tab-stops:list .5in'>Ability
     to get back a 202 HTTP response empty HTTP entity body (and get the
     eventual response on a different HTTP connection).</li>
</ol>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>WSDL level requirement:</p>

<ol style='margin-top:0in' start=1 type=1>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Ability
     to express that the response will be sent over a <span class=GramE>different<span
     style='mso-spacerun:yes'>&nbsp; </span>HTTP</span> connection (<span
     class=SpellE>replyTo</span> must be non-anon).</li>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Ability
     to express that the response will be sent over the same HTTP connection
     (in the HTTP response) (<span class=SpellE>replyTo</span> must be
     anonymous).</li>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Ability
     to express that the client gets to choose whether the response goes over
     the same HTTP connection or a different one.</li>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Ability
     to express the asynchrony at the operation level granularity. </li>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Ability
     to always require asynchronous binding. </li>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Ability
     to express the asynchrony at the <span class=SpellE>portType</span>/abstract
     part of the WSDL doc (as that is what is used to generate the client side
     APIs only without proxies). Specifying asynchrony only at the binding
     level does not help with respect to client side APIs.</li>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Ability
     to express the acceptable bindings for the response.</li>
 <li class=MsoNormal style='mso-list:l1 level1 lfo3;tab-stops:list .5in'>Specifying
     faults when the behavior as required by the asynchrony specified are not
     followed.</li>
</ol>

<p class=MsoNormal style='line-height:14.4pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:10.0pt;font-family:"Courier New";color:black'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal>We assumed the same asynchrony for faults and replies for
simplicity. </p>

<h2><span style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>The
following proposal is a replacement of the section 3.1 of the current WSDL
binding document that addresses the SOAP level requirements (1-3) for
SOAP1.1/HTTP binding as well as WSDL level requirements for (1-5). In addition,
we propose an addendum to the WS-Addressing SOAP binding specification where we
define an additional header fault to address requirement (8). <o:p></o:p></span></h2>

<h2><span style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>In
the open issues section, we discuss possible approaches for WSDL requirement 5
and 6, but we do not necessarily have consensus where and how the problem
should be addressed. Some of us feel that requirement 5 (asynchronous binding)
is not a requirement at all and requiring asynchrony should be handled at the <span
class=SpellE>portType</span> <span class=GramE>level<span
style='mso-spacerun:yes'>&nbsp; </span>or</span> out of scope anyway. <o:p></o:p></span></h2>

<h2><i style='mso-bidi-font-style:normal'><span style='font-size:12.0pt;
font-weight:normal;mso-bidi-font-weight:bold'>Please note that we are not
trying to solve the problem of SOAP over different transports for response
messages, but rather defining an extension to the current SOAP1.1//HTTP binding
so that they could be used asynchronously with this extension. Therefore, we
considered requirement (7) to be independent of enabling a WSDL
request-response transmission primitive asynchronously over 2 HTTP connections
and hence out of scope for our proposal since it can be addressed by means of extensibility.
<o:p></o:p></span></i></h2>

<h3><span class=GramE>3.a</span>. <span
style='mso-spacerun:yes'>&nbsp;</span>Proposal (A) WS-Addressing WSDL Binding
Document Changes: </h3>

<p class=MsoNormal><o:p>&nbsp;</o:p></p>

<p class=MsoNormal>The following section addresses the SOAP level requirements
(1-3) and WSDL level requirements for (1-5). It is a replacement of the Section
3.1 of the WS-Addressing WSDL Binding Document [2]. Note that the green section
reflects the current content of the specification for readability and <span
style='font-family:Arial'>specification changes are reflected using the
appropriate font.<span style='color:#339966'> </span></span></p>

<h2>3.1 <span class=SpellE>UsingAddressing</span> Extension Element<span
style='font-size:14.0pt'><o:p></o:p></span></h2>

<p><span style='font-family:Arial;color:#339966'>WS-Addressing defines an empty
global element, <span class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span>,
that may be used to indicate that an endpoint conforms to the WS-Addressing
specification. The <span class=SpellE>wsdl<span class=GramE>:required</span></span>
attribute MAY be used to indicate whether WS-Addressing Message Addressing
Properties are required in messages received from service requesters.<o:p></o:p></span></p>

<p><span style='font-family:Arial;color:#339966'>A <span class=SpellE>wsaw<span
class=GramE>:UsingAddressing</span></span> element with a <span class=SpellE>wsdl:required</span>
attribute whose value is &quot;true&quot; indicates that messages exchanged
with the endpoint MUST contain WS-Addressing Message Addressing Properties. A <span
class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span> element with
a <span class=SpellE>wsdl:required</span> attribute whose value is
&quot;false&quot; indicates that the endpoint will accept input messages with
or without WS-Addressing header blocks, and MAY generate output messages
containing WS-Addressing headers. If a SOAP binding is used and WS-Addressing
header blocks are not present in an input message then WS-Addressing header
blocks encoded in the corresponding output message MUST NOT be required to be
understood using the SOAP <span class=SpellE>mustUnderstand</span> mechanism.<o:p></o:p></span></p>

<p><span style='font-family:Arial;color:#339966'>The <span class=SpellE>wsaw<span
class=GramE>:UsingAddressing</span></span> element SHOULD appear as a child of
the <span class=SpellE>wsdl:binding</span> element. Alternatively, the <span
class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span> element MAY
instead be included as a child of the wsdl20:endpoint (or wsdl11:port) when an
endpoint intends to indicate compliance with WS-Addressing for a specific
endpoint only.<o:p></o:p></span></p>

<p><span style='font-family:Arial;color:#339966'>The inclusion of the <span
class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span> element
indicates that the applicable WS-Addressing specifications are supported within
the constraints of the WSDL binding being used. That is, uses of the
WS-Addressing specifications that may violate or are inconsistent with the
semantics of the endpoint's WSDL binding are not supported unless explicitly
stated by some other mechanism.<o:p></o:p></span></p>

<p><span style='font-family:Arial;color:#339966'>Specifically, when included in
a SOAP binding, the <span class=SpellE>wsaw:UsingAddressing</span> marker
identifies the use of Web Services Addressing 1.0 bound to SOAP as defined by
Web Services Addressing 1.0 - SOAP Binding[<cite><span style='font-family:Arial'><a
href="http://dev.w3.org/cvsweb/~checkout~/2004/ws/addressing/ws-addr-wsdl.html?content-type=text/html;%20charset=utf-8#WSADDR-SOAP#WSADDR-SOAP"><span
style='color:#339966'>WS-Addressing-SOAP</span></a></span></cite>].<o:p></o:p></span></p>

<p><span style='font-family:Arial;color:#339966'>In the case of the WSDL
SOAP/HTTP synchronous binding for request-response operations, the presence of
the <span class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span>
element does not change the requirement that the response message be sent over
the same HTTP channel over which the request was received. In this case, the <span
class=SpellE>wsa<span class=GramE>:ReplyTo</span></span> header in the request
MUST NOT contain an address with a value different from the anonymous URI. <o:p></o:p></span></p>

<p><i style='mso-bidi-font-style:normal'><span style='font-family:Arial;
color:black'>(Note to reader: Up to this point, this is exactly the same text
from the current editor&#8217;s draft)<o:p></o:p></span></i></p>

<p><span style='font-family:Arial;color:black'>However, the semantics of the
binding may be further extended by using an element in conjunction with this
element that is described below. <o:p></o:p></span></p>

<h3 style='tab-stops:363.75pt'>3.1.1 <span class=SpellE><span class=GramE>wsaw:</span>Async</span>
extension element for SOAP/HTTP bindings<span style='color:black'><o:p></o:p></span></h3>

<p><span style='font-family:Arial;mso-bidi-font-family:"Times New Roman";
color:black'>WS-Addressing defines an element, <span class=SpellE>wsaw<span
class=GramE>:Async</span></span> that may be used in conjunction with <span
class=SpellE>wsaw:UsingAddressing</span> element. The presence of the <span
class=SpellE>wsaw<span class=GramE>:Async</span></span> element in conjunction
with <span class=SpellE>wsaw:UsingAddressing</span> element within WSDL may
extend the semantics of the SOAP1.1/HTTP binding as described below. This
element MAY be used only when <span class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span>
element is present in WSDL or WS-Addressing is in use. </span><span
style='font-family:Arial;color:black'>The <span class=SpellE>wsdl<span
class=GramE>:required</span></span> attribute value of this element SHOULD have
the same value that is specified for <span class=SpellE>wsaw:UsingAddressing</span>
element. <i style='mso-bidi-font-style:normal'>(Note: The <span class=GramE>previous
<span style='mso-spacerun:yes'>&nbsp;</span>item</span> requires some
discussion)</i></span><span style='mso-bidi-font-size:10.0pt;font-family:Arial;
mso-bidi-font-family:"Arial monospaced for SAP";color:black'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-top:.05in;margin-right:0in;margin-bottom:.05in;
margin-left:0in'><span style='font-family:Arial;color:black'>The <span
class=SpellE>wsaw<span class=GramE>:Async</span></span> extension element MAY
appear as a child of the <span class=SpellE>wsdl:binding</span> element.
Alternatively, the <span class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span>
element MAY instead be included as a child of the or wsdl11:port when an
endpoint intends to indicate compliance with the extension for a specific
endpoint only or MAY be included as a child of wsdl11:binding/wsdl11:operation when
the specific operation intends to comply with the extension. <o:p></o:p></span></p>

<p><span style='font-family:Arial;color:black'>The value of the element
specifies how the WS-Addressing may extend the semantics of SOAP1.1/HTTP
binding to allow the binding to be used asynchronously. <b style='mso-bidi-font-weight:
normal'><i style='mso-bidi-font-style:normal'><o:p></o:p></i></b></span></p>

<p><span style='font-family:Arial;color:black'>The <span class=SpellE>wsaw<span
class=GramE>:Async</span></span> element may have three distinct values,
&#8220;full&#8221;, &#8220;never&#8221; and &#8220;always&#8221;. If the <span
class=SpellE>wsaw<span class=GramE>:Async</span></span> element is not present,
the semantics of the <span class=SpellE>wsaw:UsingAddressing</span> for<span
style='mso-spacerun:yes'>&nbsp; </span>the SOAP1.1/HTTP binding does not
change.<span style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></p>

<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo4;
tab-stops:list .5in'><![if !supportLists]><span style='font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;color:black'><span
style='mso-list:Ignore'>&middot;<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='font-family:Arial;color:black'>The
&#8220;full&#8221; value indicates that an extension to SOAP/HTTP binding is
used that allows using a separate connection when needed. The extension allows
a SOAP1.1/HTTP binding to use a separate connection for sending response
messages, instead of using the same HTTP connection. This extension allows SOAP
1.1/HTTP to be used asynchronously as follows.<o:p></o:p></span></p>

<p style='margin-left:.5in'><span style='font-family:Arial;color:black'>When
the value of the element is &#8220;full&#8221;, the response message MAY be
sent over the same HTTP channel over which the request was received or by
opening a separate connection. When the value of the [reply endpoint] in the
request message contains the anonymous URI as the address, the response MUST be
sent over the same HTTP channel.<span style='mso-spacerun:yes'>&nbsp;
</span>However, when the value of [reply endpoint] contains an address that is
different than the anonymous URI, this extension for the SOAP/HTTP binding requires
the following <o:p></o:p></span></p>

<p style='margin-left:.75in;text-indent:-.25in;mso-list:l2 level1 lfo5;
tab-stops:list .75in'><![if !supportLists]><span style='font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;color:black'><span
style='mso-list:Ignore'>&middot;<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='font-family:Arial;color:black'>The
receipt of the request message MUST be acknowledged with a status message (202)
by the receiver using the HTTP connection that generated the request. The
receipt message MUST contain an empty SOAP body.<span
style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></p>

<p style='margin-left:.75in;text-indent:-.25in;mso-list:l2 level1 lfo5;
tab-stops:list .75in'><![if !supportLists]><span style='font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;color:black'><span
style='mso-list:Ignore'>&middot;<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='font-family:Arial;color:black'>The
actual response MUST be sent using a separate connection using the address
value of the response message specified by [reply endpoint]. <o:p></o:p></span></p>

<p style='margin-left:.5in;text-indent:-.25in;mso-list:l3 level1 lfo6;
tab-stops:list .5in'><![if !supportLists]><span style='font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;color:black'><span
style='mso-list:Ignore'>&middot;<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='font-family:Arial;color:black'>The
&#8220;never&#8221; value indicates that the SOAP1.1/HTTP extension that allows
multiple connections is not in use. In essence, the presence of the <span
class=SpellE>wsaw<span class=GramE>:Async</span></span> element with
&#8220;never&#8221; value is equivalent to the element<span
style='mso-spacerun:yes'>&nbsp; </span>not being present since current
SOAP1.1/HTTP bindings do not allow multiple HTTP connections. In this case, the
presence of the element does not change the requirement that the response message
be sent over the same HTTP channel over which the request was received. <i
style='mso-bidi-font-style:normal'><o:p></o:p></i></span></p>

<p style='margin-left:.5in'><span style='font-family:Arial;color:black'>When <span
class=SpellE>wsaw<span class=GramE>:Async</span></span> element has this value,
[reply endpoint]/[fault endpoint] <span class=SpellE>EPRs</span> in the request
MUST NOT contain an address with a value different from the anonymous URI. If
[reply endpoint]/[fault endpoint] <span class=SpellE>EPRs</span> do not contain
the anonymous address value, then a predefined <span class=SpellE>InvalidAddressingHeader</span>
fault defined in Section 5.4.1.7 of defined by Web Services Addressing 1.0 -
SOAP Binding[<cite><span style='font-family:Arial'><a
href="http://dev.w3.org/cvsweb/~checkout~/2004/ws/addressing/ws-addr-wsdl.html?content-type=text/html;%20charset=utf-8#WSADDR-SOAP#WSADDR-SOAP">WS-Addressing-SOAP</a></span></cite>]
MUST be generated<span style='mso-spacerun:yes'>&nbsp; </span>(See Section 3 B
for the definition of this new fault). <i style='mso-bidi-font-style:normal'><o:p></o:p></i></span></p>

<p><i style='mso-bidi-font-style:normal'><span style='font-family:Arial;
color:black'>[Note to readers: We do not have agreement whether the
functionality specified with the following bullet is required to be supported.
This is an open issue for discussion. We included it here for completeness.
Note that this <span class=GramE>bullet<span style='mso-spacerun:yes'>&nbsp;
</span>addresses</span> WSDL requirement (5) ]<o:p></o:p></span></i></p>

<p style='margin-left:.5in;text-indent:-.25in;mso-list:l5 level1 lfo7;
tab-stops:list .5in'><![if !supportLists]><span style='font-family:Symbol;
mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;color:black'><span
style='mso-list:Ignore'>&middot;<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";color:black'>The &#8220;always&#8221; value of the <span
class=SpellE>wsaw<span class=GramE>:Async</span></span> element indicates that
SOAP1.1/HTTP binding must always use a separate connection for sending response
messages, instead of using the same HTTP connection. The extension requires
SOAP 1.1/HTTP to be used always asynchronously as described above. </span><span
style='font-family:Arial;color:black'>When <span class=SpellE>wsaw<span
class=GramE>:Async</span></span> element has this value, [reply
endpoint]/[fault endpoint] EPR in the request MUST NOT contain an address with
a value that is the same as the anonymous URI. <o:p></o:p></span></p>

<p class=examplehead><span class=GramE><i><span style='font-family:Arial;
color:black'>Example 3-1.</span></i></span><i><span style='font-family:Arial;
color:black'> Indicating use of WS-Addressing using <span class=SpellE>wsaw<span
class=GramE>:UsingAddressing</span></span> in WSDL 2.0<b style='mso-bidi-font-weight:
normal'> </b></span></i><b style='mso-bidi-font-weight:normal'><span
style='font-family:Arial;color:black'><o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>&lt;binding name=&quot;<span class=SpellE>reservationSOAPBinding</span>&quot;
<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span
class=GramE>interface</span>=&quot;<span class=SpellE>tns:reservationInterface</span>&quot;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;
</span>type=&quot;http://www.w3.org/2005/08/wsdl/soap12&quot;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span><span
class=SpellE>wsoap:protocol</span>=&quot;http://www.w3.org/2003/05/soap/bindings/HTTP&quot;&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;<span
class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span> <span
class=SpellE>wsdl:required</span>=&quot;true&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;operation
ref=&quot;<span class=SpellE>tns<span class=GramE>:opCheckAvailability</span></span>&quot;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span class=SpellE>wsoap:mep</span>=&quot;http://www.w3.org/2003/05/soap/mep/request-response&quot;
/&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;fault ref=&quot;<span
class=SpellE>tns<span class=GramE>:invalidDataFault</span></span>&quot; <span
class=SpellE>wsoap:code</span>=&quot;<span class=SpellE>soap:Sender</span>&quot;
/&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>&lt;/binding&gt;<o:p></o:p></span></p>

<p class=examplehead><span class=GramE><i><span style='font-family:Arial;
color:black'>Example 3-2.</span></i></span><i><span style='font-family:Arial;
color:black'> Indicating use of WS-Addressing using <span class=SpellE>wsaw<span
class=GramE>:UsingAddressing</span></span> in WSDL 1.1 <b style='mso-bidi-font-weight:
normal'>(same as in the current specification)</b></span></i><b
style='mso-bidi-font-weight:normal'><span style='font-family:Arial;color:black'><o:p></o:p></span></b></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>&lt;binding name=&quot;<span class=SpellE>StockQuoteSoapBinding</span>&quot;
type=&quot;<span class=SpellE>tns<span class=GramE>:StockQuotePortType</span></span>&quot;&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;<span
class=SpellE>soap<span class=GramE>:binding</span></span>
style=&quot;document&quot;
transport=&quot;http://schemas.xmlsoap.org/soap/http&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;<span
class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span> <span
class=SpellE>wsdl:required</span>=&quot;true&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;operation
name=&quot;<span class=SpellE>GetLastTradePrice</span>&quot;&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>&lt;<span
class=SpellE>soap<span class=GramE>:operation</span></span> <span class=SpellE>soapaction</span>=&quot;http://example.com/GetLastTradePrice&quot;
/&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>&lt;<span
class=GramE>input</span>&gt; <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>&lt;<span class=SpellE>soap<span class=GramE>:body</span></span>
use=&quot;literal&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;
</span>&lt;/input&gt; <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>&lt;<span
class=GramE>output</span>&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>&lt;<span class=SpellE>soap<span class=GramE>:body</span></span>
use=&quot;literal&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;
</span>&lt;/output&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;/operation&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'>&lt;/binding&gt;<span style='font-size:10.0pt;font-family:
"Courier New";color:black'><o:p></o:p></span></p>

<p class=examplehead><span class=GramE><i><span style='font-family:Arial;
color:black'>Example 3-3.</span></i></span><i><span style='font-family:Arial;
color:black'> Indicating use of WS-Addressing using <span class=SpellE>wsaw<span
class=GramE>:UsingAddressing</span></span> that supports asynchronous responses
in WSDL 1.1<b style='mso-bidi-font-weight:normal'> (new)</b></span></i><span
style='font-family:Arial;color:black'><o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'>&lt;binding name=&quot;<span class=SpellE>StockQuoteSoapBinding</span>&quot;
type=&quot;<span class=SpellE>tns<span class=GramE>:StockQuotePortType</span></span>&quot;&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;<span
class=SpellE>soap<span class=GramE>:binding</span></span>
style=&quot;document&quot; transport=&quot;http://schemas.xmlsoap.org/soap/http&quot;
/&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;<span
class=SpellE>wsaw<span class=GramE>:UsingAddressing</span></span> <span
class=SpellE>wsdl:required</span>=&quot;true&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;<span
class=SpellE>wsaw<span class=GramE>:Async</span></span> <span class=SpellE>wsdl:required</span>=&#8221;true&#8221;/&gt;full&lt;<span
class=SpellE>wsaw:Async</span>&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><o:p>&nbsp;</o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;operation
name=&quot;<span class=SpellE>GetLastTradePrice</span>&quot;&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>&lt;<span
class=SpellE>soap<span class=GramE>:operation</span></span> <span class=SpellE>soapaction</span>=&quot;http://example.com/GetLastTradePrice&quot;
/&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>&lt;<span
class=GramE>input</span>&gt; <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>&lt;<span class=SpellE>soap<span class=GramE>:body</span></span>
use=&quot;literal&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;
</span>&lt;/input&gt; <o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp; </span>&lt;<span
class=GramE>output</span>&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>&lt;<span class=SpellE>soap<span class=GramE>:body</span></span>
use=&quot;literal&quot; /&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;
</span>&lt;/output&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'><span style='font-size:10.0pt;font-family:"Courier New";
color:black'><span style='mso-spacerun:yes'>&nbsp; </span>&lt;/operation&gt;<o:p></o:p></span></p>

<p class=MsoNormal style='margin-left:12.0pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt;
background:#D5DEE3'>&lt;/binding&gt;<span style='font-size:10.0pt;font-family:
"Courier New";color:black'><o:p></o:p></span></p>

<pre><o:p>&nbsp;</o:p></pre>

<h3 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
class=GramE>3.b</span>. Addendum to the WS-Addressing SOAP Binding Document</h3>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>We
propose an additional predefined SOAP fault to be added to the WS-Addressing
SOAP Binding Specification in Section 5.4.1 as a special case of Invalid
Addressing Header as follows. Addition of this fault will address our
requirement (8).<o:p></o:p></span></h2>

<h5 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><a
name=N66814></a><span class=GramE><span style='color:black'>5.4.1.7<span
style='mso-spacerun:yes'>&nbsp; </span><span class=SpellE>wsa:OnlyAnonymousSupported</span></span></span><span
style='color:black'><o:p></o:p></span></h5>

<p style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
class=GramE><span style='font-family:Arial;color:black'>S</span><span
style='font-family:Arial;mso-bidi-font-family:"Times New Roman";color:black'>pecifies
that an EPR value of [reply endpoint] (or [fault endpoint]) is expected to be
the anonymous address.</span></span><span style='font-family:Arial;mso-bidi-font-family:
"Times New Roman";color:black'> [Details] MUST contain a &lt;<span
class=SpellE>wsa<span class=GramE>:ProblemHeaderQName</span></span>&gt; element
that specifies the actual <span class=SpellE>wsa</span> Header that did not
contain the anonymous address.<o:p></o:p></span></p>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>Note: If
requirement (5) is addressed as proposed, another Invalid Addressing Header
fault needs to be added.<o:p></o:p></span></h2>

<h3 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><o:p>&nbsp;</o:p></h3>

<h3 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'>4.
SOAP 1.2/HTTP and WSDL 2.0</h3>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>We
believe that our proposal is general enough to also cover SOAP 1.2/HTTP, if
Marc Hadley&#8217;s proposed changes to SOAP 1.2/HTTP binding that has been
sent to the working group [Marc Hadley Proposal] was assumed.<span
style='mso-spacerun:yes'>&nbsp; </span>Since our proposal only addresses
request/response <span class=SpellE>MEPs</span> within the context of WSDL 1.1
and SOAP 1.1, the same semantics may be applied for WSDL 2.0 and SOAP 1.2/HTTP
binding.<span style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></h2>

<h3 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'>5.
Open Issues: </h3>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>As
illustrated above, our proposal addresses all the requirements we have
envisioned, except WSDL requirement (5) and (6). We have already covered
Requirement (5) above which is related to (6). <o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>Essentially,
the requirement (6) indicates that it is important to correlate two messages at
the <span class=SpellE>portType</span> level that will always be used in a long
running fashion. Typically, business applications will require long running
interactions that involve at least two correlated messages. An example of this
may be sending of an expense report and receipt of an electronic transfer of
funds statement. Modeling of such interactions in WSDL may affect both the
application &#8220;programming&#8221; model and the binding that may be
generated. While it is possible to model such interactions with other
languages, just as BPEL, labeling a request/response interaction as a long
running exchange has the benefit of not requiring a heavy weight solution to a
small problem. <o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>Demarcating
a WSDL request/response operation as a long running correlated exchange has the
following implications: <o:p></o:p></span></h2>

<h2 style='margin-left:.5in;text-indent:-.25in;mso-list:l5 level1 lfo7;
tab-stops:list .5in'><![if !supportLists]><span style='font-size:12.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;
font-weight:normal;mso-bidi-font-weight:bold'><span style='mso-list:Ignore'>&middot;<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='font-size:12.0pt;font-weight:normal;
mso-bidi-font-weight:bold'>Application Programming Model will need to always
consider programming with asynchronous interactions. As an example, a callback
will need to be modeled specifically to deal with a response if the response is
expected to arrive hours, days, later. <o:p></o:p></span></h2>

<h2 style='margin-left:.5in;text-indent:-.25in;mso-list:l5 level1 lfo7;
tab-stops:list .5in'><![if !supportLists]><span style='font-size:12.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;
font-weight:normal;mso-bidi-font-weight:bold'><span style='mso-list:Ignore'>&middot;<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span style='font-size:12.0pt;font-weight:normal;
mso-bidi-font-weight:bold'>Bindings/Proxies that support clients for such
applications will utilize asynchronous bindings for optimal interaction. <o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>This is
an old problem and traditionally vendor specific tools correlate two one way
messages together to model such interactions product specific manner.<span
style='mso-spacerun:yes'>&nbsp; </span>The question is whether port level
asynchrony support should be indicated to enable tools to interpret a set of
WSDL <span class=SpellE>portType</span>/operations to be always asynchronous
regardless of the binding. WSDL port Type/interface operation definition
currently<span style='mso-spacerun:yes'>&nbsp; </span>is at the abstract level
and does not indicate in any way whether programmers may assume whether they
may assume long running interactions based on just the abstract layer defined
by WSDL. <o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>When
tools generate client programs (i.e. the java class that corresponds to the
client program, NOT proxies), they need the full definition of WSDL (abstract
and concrete binding) in order to be able generate the code of the client
program or skeleton as well as binding specific proxies. <o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>Although
the solution that was introduced in the proposal (Section 3 and Section 4)
above affects only binding, some of us think that an additional marker at the
WSDL <span class=SpellE>portType</span>/interface operation level may also assist
the <o:p></o:p></span></h2>

<h2 style='margin-left:.5in;text-indent:-.25in;mso-list:l6 level1 lfo8;
tab-stops:list .5in'><![if !supportLists]><span style='font-size:12.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;
font-weight:normal;mso-bidi-font-weight:bold'><span style='mso-list:Ignore'>&middot;<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span class=GramE><span style='font-size:12.0pt;
font-weight:normal;mso-bidi-font-weight:bold'>programmer</span></span><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'> who
writes the code directly to generate the client program from the WSDL port
Type/interface alone<o:p></o:p></span></h2>

<h2 style='margin-left:.5in;text-indent:-.25in;mso-list:l6 level1 lfo8;
tab-stops:list .5in'><![if !supportLists]><span style='font-size:12.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;
font-weight:normal;mso-bidi-font-weight:bold'><span style='mso-list:Ignore'>&middot;<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span class=GramE><span style='font-size:12.0pt;
font-weight:normal;mso-bidi-font-weight:bold'>tools</span></span><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'> which
generate client programs that model the interaction expected by the service
more appropriately without needing presence of the WSDL binding. <o:p></o:p></span></h2>

<h2 style='margin-left:.5in;text-indent:-.25in;mso-list:l6 level1 lfo8;
tab-stops:list .5in'><![if !supportLists]><span style='font-size:12.0pt;
font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;
font-weight:normal;mso-bidi-font-weight:bold'><span style='mso-list:Ignore'>&middot;<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span class=GramE><span style='font-size:12.0pt;
font-weight:normal;mso-bidi-font-weight:bold'>allow</span></span><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'> proxies
to be filled in later in the development independent of the client program
itself. Today, language bindings assume different programming models to model
the client program. <o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>In order
to assist with these use cases, another optional extensibility element <span
class=SpellE>wsaw<span class=GramE>:correlatedExchange</span></span> element
may be introduced. The <span class=SpellE>wsaw<span class=GramE>:correlatedExchange</span></span>
element is Boolean. When it does not appear in a WSDL <span class=SpellE>portType</span>/operation,
it does not have a default value. This element provides an optional hint for
tool developers that generate client programs or programmers to write code that
assume asynchronous interaction without the presence of WSDL binding.<span
style='mso-spacerun:yes'>&nbsp; </span><o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>The <span
class=SpellE>wsaw<span class=GramE>:correlatedExchange</span></span> element
may appear within a WSDL <span class=SpellE>portType</span>/operation element
to indicate that the input and output messages are correlated together but
require long running exchanges that are always asynchronous. When coupled by
the binding extension defined in this proposal, it is envisioned that <span
class=SpellE>wsaw<span class=GramE>:Async</span></span> element must always
appear with a value of &#8220;always&#8221; in the WSDL binding to support such
<span class=SpellE>portType</span>/operations. <o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><i
style='mso-bidi-font-style:normal'><span style='font-size:12.0pt;font-weight:
normal;mso-bidi-font-weight:bold'>This approach is in essence akin to adding <span
class=SpellE>rpc</span> style marker in WSDL 2.0 with the added requirement
that bindings that support such operations must always be asynchronous. <span
style='mso-spacerun:yes'>&nbsp;</span><o:p></o:p></span></i></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>The
authors of this specification wanted to bring this open issue to the attention
of the working group. <o:p></o:p></span></h2>

<h3 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'>References:
</h3>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>[Marc
Hadley Proposal]
http://lists.w3.org/Archives/Public/public-ws-addressing/2005Sep/0022.html<o:p></o:p></span></h2>

<h2 style='tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:12.0pt;font-weight:normal;mso-bidi-font-weight:bold'>[WS-Addressing
SOAP]
http://dev.w3.org/cvsweb/~checkout~/2004/ws/addressing/ws-addr-soap.html?content-type=text/html;%20charset=utf-8<o:p></o:p></span></h2>

<pre><o:p>&nbsp;</o:p></pre></div>

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