Grab from an instance within split join

Hi All
I have a process, and every now and then a user from role 'G' wants to grab the instances of a process (that may exist in any activity) to one of his activities, say 'AAG' (Activity After Grab :)). The Grab activities properties are defined so that it can grab instances from 'All' activities and then assign to 'AAG'.
You can visualize the process like this:
Activity A1 --> Split ----> branch 1 after split forwards to Activity AS1, brach 2 after split forwards to Activity AS2 ---> join ---> A3 --> A4 ---> AAG --> A5 ---> end
Now when an instance has executed the split, the main instance waits at join. THe child instances are each at activity AS1 and AS2.
When a user wants to grab this instance, the idea is that AS1 and AS2 should disappear, the instance at join should go to AAG.
To realize that, if I try to grab the instance waiting at join, I can move this to AAG. However instances at AS1 and AS2 still remain there.
If I try to grab instances at AS1 or AS2, I can not send them to AAG.
Any workarounds?
I am basically using PAPI to get hold of the instances. Was thinking of grabbing the instance at join, and terminating all others. But am looking for a better solution.
THanks
Satinder

Hi Dan
You are right, this might be an option (I have not yet tried it though). But I guess it still might not be the best option because -
1. This user can grab instance in any activity and assign to AAG. Now if an activity is not within split-join, then we dont really need to interrupt the instance and call this message activity, a grab works fine. Message activity will also work fine, but that would mean that for every activity in the process I will need to add a conditional transition (executed when flagToGoToAAG = true) that goes to AAG.
2. We got a little more than usual complex process. It has about 6-7 splits. Also there are about three Grab activities. This would mean about 7*3 additional transitions originating from different joins.
I was looking for a solution may be that can process/abort all instances within split-join when the instance at join is grabbed.
Thanks for your help.
Cheers
BTW, I have never used a MessageWait, in case this becomes the only option available, could you let me know how to create an interrupt from PAPI for this messageWait.
Thanks a lot
Best
Satinder

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HI
Case 1: Instance variables are not shared:
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Grab in split-join

I have a grab activity which is set to from all to all. The process has a split-join. The user cannot grab an activity which is in a branch of split-join to outside the split-join or grab an acitivity which is outside the split-join into one branch of split-join. If I want to grab an activity of a branch to outside split-join, I can abort all activities in all branches and the process goes to join. Or I can grab all acitivities in all branches to the final activity before join and execute them to join. Is there any other method to grab from activity which is inside split-join to outside the gateway?

Hi,
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In a new instance, if the process is inside the split-join, the new grab activity is the same as the first one. It is shows that the instance in a branch can be grabbed within the split-join.
If the instance is outside the split-join, the grab activity cannot grab the instance to the branch.
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Abhinav Gupta
Edited by: Abhinav on Aug 28, 2012 3:06 PM

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I don't think this was caused by your argument mapping. Whenever you're having trouble getting the new information out of a Join activity, the problem is usually the logic in the Join activity itself.
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I'd guess you're not seeing information flowing out of the Join because the Split is set to generate copies and you're not retrieving the copied information in the Join. If you're curious, here's what the engine does when it hits a Split activity that is set to generate copies:
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<pre class="jive-pre"><font size= 2 color="navy">// this lets you know where this copy came from
logMessage "JOIN: previous activity was: " + copy.activity.source.name using severity = DEBUG
<br>
case copy.activity.source.name
when "CheckCredit" then
order.creditStatus = copy.order.creditStatus
when "CheckInventory" then
order.status = copy.order.status
// the "else" should not have been hit if you've done this correctly
else
order.status = "Problem"
end</font></pre>
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What would happen if you didn't have the "case" in the logic above? You'd see the variable information in the last copy arriving into the Join overwrite the information written in previous copies. The last copy in would win.
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Dan

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Hi Shravan,
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=================
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Exception [TOPLINK-69] (OracleAS TopLink - 10g (9.0.4.5) (Build 040930)): oracle
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====================
====================
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<remote-identity-map-class>oracle.toplink.internal.identitymaps.SoftCac
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<remote-identity-map-size>100</remote-identity-map-size>
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<should-only-refresh-cache-if-newer-version>false</should-only-refresh-
cache-if-newer-version>
<should-disable-cache-hits>false</should-disable-cache-hits>
<should-disable-cache-hits-on-remote>false</should-disable-cache-hits-o
n-remote>
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<copy-policy>
<descriptor-copy-policy>
<type>oracle.toplink.internal.descriptors.CopyPolicy</type>
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<instantiation-policy>
<descriptor-instantiation-policy>
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<field-name>COMPANY.COMPANY_KEY</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>contact</attribute-name>
<read-only>false</read-only>
<reference-class>com.oocl.csc.frm.pom.test.model.Contact</referen
ce-class>
<is-private-owned>false</is-private-owned>
<uses-batch-reading>false</uses-batch-reading>
<indirection-policy>
<mapping-indirection-policy>
<type>oracle.toplink.internal.indirection.NoIndirectionPoli
cy</type>
</mapping-indirection-policy>
</indirection-policy>
<uses-joining>false</uses-joining>
<foreign-key-fields>
<field>COMPANY.CONTACT_OID</field>
</foreign-key-fields>
<source-to-target-key-field-associations>
<association>
<association-key>COMPANY.CONTACT_OID</association-key>
<association-value>CONTACT.POID</association-value>
</association>
</source-to-target-key-field-associations>
<type>oracle.toplink.mappings.OneToOneMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>createdBy</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.CREATED_BY</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>creationClientID</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.CREATION_CLIENTID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>creationTime</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.CREATION_TIME</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>employeeList</attribute-name>
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<reference-class>com.oocl.csc.frm.pom.test.model.Person</referenc
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<mapping-indirection-policy>
<type>oracle.toplink.internal.indirection.NoIndirectionPoli
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</mapping-indirection-policy>
</indirection-policy>
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<target-relation-key-fields>
<field>EMPLOYEMENT.EMPLOYEE_ID</field>
</target-relation-key-fields>
<type>oracle.toplink.mappings.ManyToManyMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>lastUpdateClientID</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.LAST_UPDATE_CLIENTID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>lastUpdatedBy</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.LAST_UPDATED_BY</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>lastUpdateTime</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.LAST_UPDATE_TIME</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>name</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.NAME</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>partner</attribute-name>
<read-only>false</read-only>
<reference-class>com.oocl.csc.frm.pom.test.model.Company</referen
ce-class>
<is-private-owned>false</is-private-owned>
<uses-batch-reading>false</uses-batch-reading>
<indirection-policy>
<mapping-indirection-policy>
<type>oracle.toplink.internal.indirection.NoIndirectionPoli
cy</type>
</mapping-indirection-policy>
</indirection-policy>
<uses-joining>false</uses-joining>
<foreign-key-fields>
<field>COMPANY.PARTNER</field>
</foreign-key-fields>
<source-to-target-key-field-associations>
<association>
<association-key>COMPANY.PARTNER</association-key>
<association-value>COMPANY.COMPANY_KEY</association-value>
</association>
</source-to-target-key-field-associations>
<type>oracle.toplink.mappings.OneToOneMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>persistentCtxt</attribute-name>
<read-only>false</read-only>
<reference-class>com.oocl.csc.frm.pom.impl.FWPOMPersistentContext
</reference-class>
<is-null-allowed>false</is-null-allowed>
<aggregate-to-source-field-name-associations>
<association>
<association-key>OWNERID</association-key>
<association-value>COMPANY.OWNERID</association-value>
</association>
<association>
<association-key>ROOTID</association-key>
<association-value>COMPANY.ROOTID</association-value>
</association>
</aggregate-to-source-field-name-associations>
<type>oracle.toplink.mappings.AggregateObjectMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>poid</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.POID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>version</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.VERSION</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
<database-mapping>
<attribute-name>versionID</attribute-name>
<read-only>false</read-only>
<field-name>COMPANY.VERSIONID</field-name>
<type>oracle.toplink.mappings.DirectToFieldMapping</type>
</database-mapping>
</mappings>
<type>oracle.toplink.publicinterface.Descriptor</type>
</descriptor>
</descriptors>
</project>
====================
====================
Session Creation Method:
SessionBroker broker = (SessionBroker) manager.getSession(brokerName, Thread.currentThread().getContextClassLoader());
broker.getLogin().getPlatform().getConversionManager().setLoader(Thread.currentThread().getContextClassLoader());
====================
===================
Class Hierarchy:
Object extends> ..xxx.. extends> FWObject extends> Company
The problematic attribute -- versionID -- is defined at "FWObject" level.
===================
===================
Environment Configuration:
Application Server version: 10.1.2
TopLink version : 9.0.4.5
TopLink classpath: specified at container level
FWObject classpath: specified at container level
Company classpath: specified at application level
===================
Thanks and regards,
William

Dear All,
We have loaded the toplink.jar to container level instead of application level. Don't know whether it is a possible source of error. Moreover, what is the purpose of loading antlr.jar? What is this jar for?
Thanks and regards,
William

Exception while executing split join in ALSB

Hi
When i am executing splitjoin flow in ALSB i am getting below exception
####<Nov 29, 2010 5:02:17 AM EST> <Error> <BPEL Kernel> <gifsmrt> <AdminServer> <[ACTIVE] ExecuteThread: '8' for queue: 'weblogic.kernel.Default (self-tuning)'> <<anonymous>> <> <> <1291024937262> <BEA-2032000> *<Error during invocation of "MICAPI/Proxy Services/SplitJoin" for event "CPS_IWGIF_Proxy@GetContractFinance" of type "com.bea.bpel.internal.dispatcher.message.ServiceResponseMessageExchangeImpl".*
*com.bea.bpel.interpreter.exception.MissingReplyException: The message for partner link 'SplitJoin', operation 'GetContractFinance' and message exchange token 'null' has not been replied to.: Fault [{http://docs.oasis-open.org/wsbpel/2.0/process/executable}missingReply] The message for partner link 'SplitJoin', operation 'GetContractFinance' and message exchange token 'null' has not been replied to.*Executing Process Reference: MICAPI/Proxy Services/SplitJoin; instance ID: uuid:11d1def534ea1be0:-5e2ac50e:12b0eb1ffb4:-7b00; thread: Thread 26 (RUNNING); frame ID: null; location: null
at com.bea.bpel.interpreter.internal.InterpreterFactory$ReplyEventListener.onTerminate(InterpreterFactory.java:84)
at com.bea.bpel.interpreter.internal.state.StateContainerImpl.terminate(StateContainerImpl.java:131)
at com.bea.bpel.interpreter.internal.program.StackFrameImpl.delete(StackFrameImpl.java:558)
at com.bea.bpel.interpreter.internal.program.StackFrameImpl.delete(StackFrameImpl.java:572)
at com.bea.bpel.interpreter.internal.program.StackFrameImpl.terminate(StackFrameImpl.java:535)
at com.bea.bpel.interpreter.internal.program.ExecutionThreadImpl.pop(ExecutionThreadImpl.java:79)
at com.bea.bpel.interpreter.internal.program.ProgramImpl.pop(ProgramImpl.java:395)
at com.bea.bpel.interpreter.internal.operation.transition.FaultTransition.raise(FaultTransition.java:220)
at com.bea.bpel.interpreter.internal.operation.transition.FaultTransition.execute(FaultTransition.java:85)
at com.bea.bpel.interpreter.internal.Interpreter.postProcess(Interpreter.java:224)
at com.bea.bpel.interpreter.internal.Interpreter.interpret(Interpreter.java:169)
at com.bea.bpel.interpreter.internal.Interpreter.invoke(Interpreter.java:82)
at com.bea.bpel.internal.dispatcher.EngineManagerImpl.dispatch(EngineManagerImpl.java:55)
at com.bea.bpel.internal.dispatcher.SchedulerServiceContextImpl.fireEventMessage(SchedulerServiceContextImpl.java:184)
at com.bea.bpel.internal.dispatcher.SchedulerServiceContextImpl.fireEvent(SchedulerServiceContextImpl.java:67)
at com.bea.alsb.flow.scheduler.SchedulerServiceImpl$1.run(SchedulerServiceImpl.java:35)
at weblogic.work.ContextWrap.run(ContextWrap.java:41)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTuningWorkManagerImpl.java:464)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)
and fault message as
<con1:faultcode xmlns:exec="http://docs.oasis-open.org/wsbpel/2.0/process/executable">exec:missingReply</con1:faultcode>
<con1:faultstring>The message for partner link 'SplitJoin', operation 'GetContractFinance' and message exchange token 'null' has not been replied to.</con1:faultstring>
Can someone let me know what might went wrong in my flow?

mmm as far as I remember it's available only in 3.0, not in 2.6
http://download.oracle.com/docs/cd/E11036_01/alsb30/userguide/splitjoin.html
and see also the excellent Biemond blog http://biemond.blogspot.com/2008/11/split-join-in-oracle-service-bus.html

How does a RAC DB 'spread' from single instance to multiple instances ?

GI/RDBMS Version: 11.2.0.3
OS: Oracle Linux 6.3
Filesystem : ASM
When a RAC database is created using dbca , Manually , or RMAN restore, the DB is created in the Node1 first with cluster_Database=FALSE .
Then you run the following commands (for 3-node RAC) from Node1
srvctl add database -d lmnprod -o $ORACLE_HOME -p +LMNPROD_DATA01/lmnprod/spfilelmnprod.ora
srvctl add instance -d lmnprod -i lmnprod1 -n hwcarser290
srvctl add instance -d lmnprod -i lmnprod2 -n hwcarser291
srvctl add instance -d lmnprod -i lmnprod3 -n hwcarser292
Once the DB is created,mounted and opened in Node1 and the above commands are executed , you set cluster_Database=TRUE and startup the Instance2 and Instance 3 in Node2 and Node3.
I just want to know how does Node2 and Node3 becomes aware of the DB and joins the DB cluster ? What happens internally ?

Generally speaking, registering in OCR is not required for database to be a cluster database.
Migration from single-instance database to cluster consists of creating redo logs and undo tablespace for new instance and enabling this instance (thread). If database is policy-managed, this is done automatically for new node.

Creating New Entity Instances within OPA

This is another one that I think I know the answer to, but I think it is best to confirm.
In prior versions, it was not possible to create entity instances within RuleBurst/Haley Office Rules. Is that still the case in OPA?
For example, my rules are determining the status of a case and the reason(s) why that status was determined. The case status may be Denied and the reasons may be "invalid customer Id", "expenses to income ratio too high", "primary customer not employed long enough", etc. I want to return all the reasons for the status. While the list of reasons is pre-determined, the ones that apply to a particular case are dynamic, as any, but not all can apply.
Given this situation using a database, I would create an instance of reason for each applicable one and link it to the case. In the past, with OPA's predecessor(s), it was not possible to create new instances from within. They either had to all be passed into the rulebase or a list of all allowable reasons attributes had to be created and then set to true for the ones that applied.
My preference is to create the instances inside OPA. Is that functionality provided in the current version?
Thanks,
Terry

Hi Terry,
Michael is correct that you can't write rules at design time which will dynamically create new entity instances at runtime. However, perhaps the new inferred relationships functionality in v10 could address what you're trying to do.
You can write rules which conclude membership of an inferred relationship. So you might always have, say, 10 instances of 'the reason' in every case, but as for which of those instances apply in any particular case, it depends on the details of the case. You could use an inferred relationship to collect up the entity instances which apply in the case.
First you'd need to set up a regular one-to-many relationship to instantiate the 10 instances at runtime - this would be done in the usual way. Then you'd also need to set up an inferred relationship and write rules to conclude the members of the inferred relationship. The instances which are members of the inferred relationship are then effectively the list of entity instances you wanted to create in your example above.
Have a look at this OPM Help article: http://www.oracle.com/technology/products/applications/policy-automation/help/opm10_1/Content/Rules%20using%20entity%20instances/Reason_about_relship_between_2_entities.htm
Cheers,
Jasmine

Dynamic Split Join:Parallel flow using OSB

Hi,
I am implementing a dynamic split join in OSB,where in the for -loop i am invoking a database adapter.
If I select parallel='yes' in the for-loop settings, I get a random number of records from the database as an output.
While on the other hand, on running the for-loop sequentially, i get the exact number of records i am expecting.
Could anybody figure out why is this happening?
Regards,
Tarun

If I understand correctly, this is what you are doing:
Configure a For loop based on a repeating element in source XML (for ex. for each customer id in xml message).
Inside each loop you are making a DB lookup and getting one record for each element (for ex. customer details of each customer id)
Finally you are aggregating them in the same variable (join)
The problem that you see is that if you do it in parallel then you do not see details of all customers in the out variable?
If yes, then can you please let me know how you are updating the details of each record in the out variable.

Grab from an instance within split join

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