RE: [wsbpel] Issue - 236 - Clarification on CorrelationViolation for Outbound Messages

From
Eckenfels. Bernd <>
Date
2005-12-01T19:22:20+00:00
ID
Thread
RE: [wsbpel] Issue - 236 - Clarification on CorrelationViolation for Outbound Messages
Hello,

 

Well actually yes the issue is about somthing else, however 
the change to the appendix looks misleading to me, since it suggests that in the 
2-way-invoke case a response will be received even if a violation is thrown. Or 
is this intentional? 

 

And also we had a discussion what "fault thrown" means, and 
we should state if or if not we want to say anything about the partner, maybe 
"if the binding allows responses/aknowledgement to response-messages, then the 
BPEL system faul may/may not be dispatched to the partner"

 

Anyway, I think this is another viewpoint 
here:

 

Thrown when 
the contents of the messages that are processed in an invoke, receive, or reply 
activity do not match specified correlation information. If the fault is in 
the context of an inbound message, then the message MUST not be received by the 
process, the invoke or receive 
throws a fault to the BPEL process. If the fault is in 
the context of an outbound message, then the message MUST NOT be dispatched 
OUT by the process. 

 

 

 

Gruss

Bernd

From: Alexandre Alves [mailto:] 

Sent: Thursday, December 01, 2005 8:11 PM
To: Eckenfels. 
Bernd; 
Subject: RE: [wsbpel] Issue - 236 - 
Clarification on CorrelationViolation for Outbound Messages

Hi 
Bernd,

 

Thanks for the 
feedback!

 

Maybe I was not clear 
enough or I am miss-understanding you, but this issue (236) is related to the 
outbound messages only and not at all to the incoming reply (‘in’-constraint) of 
a request-reply invoke. 

 

What might be confusing 
is that as part of spec text for this issue, I wanted to update the appendix 
definition of a correlationViolation fault and I noticed that as it was it did 
not completely reflect the latest change to section 14.3 regarding the incoming 
reply of a request-reply invoke, thus I also moved over this explanation to the 
appendix. 

 

In another words, the 
phrase ‘If the fault is in the context of an inbound message, 
then the message MUST not be received by the process, except in the case of 
an invoke activity with a request/reply 
operation.’  is 
meant to just reflect what currently _already_ is specified in section 
14.3.

 

Would it help if I 
change the proposed text to:

 

Thrown when the contents of the messages that are 
processed in an invoke, receive, or reply activity do not match specified 
correlation information. If the fault is in the context of an inbound 
message, then the message MUST not be received by the process, except in the case of 
an invoke activity with a request/reply operation. If 
the fault is in the context of an outbound message, then the message MUST NOT be 
dispatched OUT by the process. 

 

Thanks,

Alex

 

From: 
Eckenfels. Bernd [mailto:] 
Sent: Thursday, December 01, 2005 10:11 
AM
To: 

Subject: [wsbpel] Issue - 236 - 
Clarification on CorrelationViolation for Outbound 
Messages

 

Hello 
Alexandre,

 

just a minor note, i 
think we had this already, but since we want to change the wording here: if a 
reply is received on a two way invoke, and the reply violates the correlation, 
then the message will not be dispatched (this issue) and a correlation violation 
will be thrown by the invoke - however, it is not required (but possible?) to be 
also send to the web service who originated the 
response?

 

I also think the below 
proposed changes to the appendix are not correct, or do you really want to 
receive the reply if it violates the 
"in"-constraint?

 

  
Thrown when the contents of the messages that are 
  processed in an invoke, receive, or reply activity do not match specified 
  correlation information. If the fault is in the context of an inbound 
  message, then the message MUST not be received by the process, except in the case of an invoke activity with a 
  request/reply operation. If the fault is in the context of 
  an outbound message, then the message MUST NOT be dispatched by the 
  process. 

 

Gruss

Bernd

 

 

From: 
ws-bpel issues list editor [mailto:] 
Sent: Wednesday, November 23, 2005 5:14 
PM
To: 

Subject: [wsbpel] Issue - 236 - 
Clarification on CorrelationViolation for Outbound Messages

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Issue - 
236 - Clarification on CorrelationViolation for Outbound 
Messages

Status: 
received
Date added: 23 Nov 
2005
Categories: Correlation
Date submitted: 23 November 
2005
Submitter: Alexandre Alves
Description: 

Specification does not clarify what happens when a 
invoke activity fails with bpws:correlationViolation fault for the out message 
(i.e. pattern out or out-in). Is the request actually send out or 
not?
Submitter’s proposal: 

In the case 
of the correlationViolation failure for the outbound message, the message is not 
dispatched out. 

- In 
section 14.3 Correlation, replace the paragraph: 

  
If the correlation set is already initiated and the 
  initiate attribute is set to "no", the correlation consistency constraint MUST 
  be observed. An inbound message cannot be received unless it matches the 
  stated correlation set. Though there is one exception; an inbound message will 
  be received in the case of an <invoke> with a request/reply operation 
  even if the reply does not match the stated correlation set. In this case 
  bpws:correlationViolation MUST be thrown by a compliant implementation. If the 
  correlation set does not match an outbound message then the standard fault 
  bpws:correlationViolation MUST be thrown by a compliant implementation. 
  

by: 

  
If the correlation set is already initiated and the 
  initiate attribute is set to "no", the correlation consistency constraint MUST 
  be observed. An inbound message cannot be received unless it matches the 
  stated correlation set. Though there is one exception; an inbound message will 
  be received in the case of an <invoke> with a request/reply operation 
  even if the reply does not match the stated correlation set. In this case 
  bpws:correlationViolation MUST be thrown by a compliant implementation. If the 
  correlation set does not match an outbound message then the standard fault 
  bpws:correlationViolation MUST be thrown by a compliant implementation and 
  the outbound message MUST NOT be dispatched by the process. 
  

- In 
Appendix A. Standard Faults, replace the paragraph: 

  
Thrown 
  when the contents of the messages that are processed in an invoke, receive, or 
  reply activity do not match specified correlation information. 
  

by: 

  
Thrown when the contents of the messages that are 
  processed in an invoke, receive, or reply activity do not match specified 
  correlation information. If the fault is in the context of an inbound 
  message, then the message MUST not be received by the process, except in the 
  case of an invoke activity with a request/reply operation. If the fault is in 
  the context of an outbound message, then the message MUST NOT be dispatched by 
  the process. 

Changes: 23 Nov 2005 - new 
issue

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