Query on bpel.config.OneWayDelivery Property

Hello,
I have a query on bpel.config.OneWayDelivery Property.
Scenario : In case of any error in BpelProcess A , it will call BpelProcess B .So BpelProcessB will be called in the catchAll branch of Process A. After calling Process B, i am throwing a fault in Process A to rollback process A (as there is a DB adpater in it which i want to roll back). To invoke Process B in a separate transaction i set the bpel.config.transaction to requires new in the component section of composite.xml of process B. Please not Process B is ASynchronous process. Now :
Case 1: By setting only bpel.config.transaction property to 'requiresnew'.
Process A gets error, it calls Process B and it itself get rolledback (because of throw activity after a call to Process B). Now in the instance of Process A i am not able to see the trace of Process B. Only Process B name is appearing, also Process B didn't get executed at all or might be rolledback along with process A (not sure on this).
Case 2: By setting only bpel.config.transaction property to 'requiresnew' and bpel.config.OneWayDelivery property to 'sync'.
In this case everything works fine like Process A call Process B in case of Error. Process A get rolledback successfully and i am able to see the trace of Process B as it get executed successfully.
Questions :
In case1 though i have set the transaction=requiresnew, why Process B is not getting executed and i am not able to see the trace of it.Ideally Process B should get executed in a seperate transaction. While in Case2, everything works fine. So what exactly happening after placing 'OnewayDelivery' Property, that it started working.
I have went through the documents on 'OnewayDelivery', but i didn't get the clear idea corresponding to my scenarios explained above.
Can anyone please explain on how exactly 'OnewayDelivery' property works.
Thanks.

So,
For Case 1 : When Process B is getting executed in a separate Thread and Transaction , then when process A is getting rolled back why B is also getting rolled back as it's in different thread althgether.
3) For Case2 : Please clear my following understanding :
When we set the value to 'sync' for process B, then B will act like a synchronous process(ideally it Async), and will get committed after the it's execution. Because of this, even if A is getting rolled back, B will not get rolledback because it is already committed. For case 1:
By calling process B, an invocation message is being insert into the dehydration store. That causes process B to be created as a new thread/transaction.
When you perform rollback->the new transaction that was made following the new thread, is being rollback among the rest of your process transaction(the rollback causes the message not to be save and for that you can't see new instance).
For case 2:
By calling process B, only a new transaction is being creating, and invocation message is not being insert into the dehydration store.
So actualy, you have 1 thread and 2 transactions, and you are telling your process(thread) to rollback only the current transaction and not the new one (process A not owns the new transaction).
2) You mentioned if we are calling Process B with No Rollback. How to call B with No Rollback? Is there any property like that? It was just an example. Forget about it.
I hope it answered you questions...
Arik

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LENGTH*WIDTH* HEIGHT AS ITEM_CUBE


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Hi
Thank for your reply!
I have a nested select query which performs on two different table as shown below:

SELECT LENGTH, WIDTH, HEIGHT, WEIGHT,


LENGTH*WIDTH* HEIGHT AS ITEM_CUBE


FROM CUBE


WHERE ITEM= <abc>


AND OBJECT= (SELECT NAME FROM SUPPLIER WHERE ITEM=<Item> AND SUPP_IND = ‘Y')
I am using DB adapter of Oracle JDeveloper in BPEL process flow, where I can able to select only one master table in DB adapter say SUPPLIER and its attributes at a time.But as per my requirment I need to select both the table (CUBE and SUPPLIER) in a single adapter to execute my query.
It can be achievable by using two DB adapter , One to execute the nested query and another to execute the main qyery considering value of nested query as a parameter.But I want to achieve it by using a single one.
Am I correct with my concept?
Please suggest how to get it ?

Edited by: user10259700 on Oct 23, 2008 12:17 AM

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