Re: [wsbpel] Issue - 52 - Proposal For Vote

[Francisco Curbera <curbera@us.ibm.com>]

So, when the "self" bit is on the implication must be that the process
takes on both roles of the partner link. Don't you need to differentiate in
receives/invokes what "end" of the partner link is being used? That is,
isn't this (from the process perspective) actually equivalent to two
partner links (that happen to be the two ends of the same message pipe)?

I guess resolving this issue involves a judgement call  about what type of
interactions merit first class support in the language. I am still of the
opinion that we can deal with this facility via data sharing, on the
assumption that this behavior is that frequently required.

Paco



                                                                                                                                        
                      "Yaron Y. Goland"                                                                                                 
                      <ygoland@bea.com>        To:       wsbpeltc <wsbpel@lists.oasis-open.org>                                         
                                               cc:                                                                                      
                      09/15/2004 09:05         Subject:  [wsbpel] Issue - 52 - Proposal For Vote                                        
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                      ygoland                                                                                                           
                                                                                                                                        




In section 6.2, 7.2
Change the partnerLink schema to:

<partnerLinks>
       <partnerLink name="ncname" partnerLinkType="qname"
            myRole="ncname"? partnerRole="ncname"?
            partnerIsSelf="Boolean"?>+
       </partnerLink>
</partnerLinks>

Add the following text to the end of section 7.2:

If the partnerIsSelf attribute is set to true then it indicates that the
partnerRole points to the BPEL process instance in which the partnerLink
is being used. The default value of the partnerIsSelf attribute is
false. partnerIsSelf is used to support internal communication so that a
BPEL process instance can send messages to itself. By specifying
partnerIsSelf="true" the BPEL engine knows that it is to provide a
binding for the partnerRole that points at the BPEL process instance.

Add the following to the schema definition of tPartnerLink:
<attribute name="partnerIsSelf" type="bpws:tBoolean" use="optional"
default="no"/>

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