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Proposal for Issue 1166

From: Charlton Barreto <cbarreto@adobe.com>
Date: Fri, 22 Jul 2005 16:43:45 -0700
To: wschor Group <public-ws-chor@w3.org>
Message-id: <9229EB9C-D13A-44FD-A667-28AC5EB15BD6@adobe.com>
Hi all,

Here is the proposal for 1166:

To Section 5.3.1, add the following function definitions:
xsd:boolean hasChoreographyCompleted(xsd:string choreoName,  
xsd:string choreoInstanceId?)
Returns true if the performed choreography(s) associated with the  
parameter 'choreoName' and OPTIONAL choreoInstanceId has a status of  
completed (whether successfully or not). If the optional  
choreoInstanceId is not specified, the function will evaluate whether  
all performed choreographies, with the supplied name, have completed.  
If the named choreography has not been performed, prior to this  
function being called, it will return false.

xsd:string getChoreographyStatus(xsd:string choreoName, xsd:string  
Returns the current status associated with the identified  
choreography and OPTIONAL instanceId. If the instanceId is not  
specified, then there MUST only be a single instance of that  
performed choreography in the scope of the current choreography that  
is checking the status. The values of the status can be 'enabled',  
'completed-successfully', 'completed-unsuccessfully', or 'closed'.  
The valid transitions of the choreography status are outlined in  
Section 5.7, Choreography Life-line.

In Section 6.3, in the syntax definition of the perform construct  
after paragraph 4, update the definition to include the block  
attribute as follows:
<perform choreographyName="qname"
block="true|false"? >
     <bind name="ncname">
         <this variable="XPath-expression" role="qname"/>
         <free variable="XPath-expression" role="qname"/>

To paragraph 3 of Section 6.7, add:
A finalize activity performed on uninstalled Finalizer Block(s) will  
have no effect.

After paragraph 9 of Section 6.7, insert:
The OPTIONAL block attribute is used to indicate whether the  
performing choreography should wait for the performed choreography to  
complete before the perform activity completes. If the block  
attribute is set to true, the perform activity will wait for the  
performed choreography to complete. If the block attribute is false,  
the perform activity will complete immediately following the  
enablement of the performed choreography, causing the performed  
choreography to be active concurrently with other activities  
following the perform activity. The default for this optional  
attribute is 'true'. NOTE: For the purpose of clarity, any non- 
blocking performed sub-choreographies, that have not completed prior  
to the end of the performing choreography, will be automatically  
completed upon the completion of the performing choreography.

Please let me know if you have any questions....


Charlton Barreto
P 1.408.536.4496
Received on Friday, 22 July 2005 23:43:59 UTC

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