BPEL Correlation

Hi All,
I want to do some hands on in BPEL correlation. Can anyone suggest me where i can find about the basics of correlation concepts and tutorial on using Correlation in BPEL? Any help appreciated.
Thanks & Regards,
Ayyadurai

one of these?
http://blogs.bpel-people.com/2009/04/writing-singleton-bpel-process.html
http://swapnil-soa.blogspot.com/2008/01/correlation-this-post-would-effort-to.html
hth,
Peter Paul

Similar Messages

Issue with BPEL Correlation on Invoke 11g

The scenario is like...
One initial receive -> Invoke to a Web Service -> Receive from JMS Q -> End of the process.
I have applied BPEL Correlation on Invoke by creating property alias with Output Message Type.Pattern I have also used.
Now, when I run the composite, the instance is in error but no error message.
On the other hand, if I use the Input message type for correlation property alias, the BPEL process proceeds. But my requirement is to do the correlation on output variable of invoke which needs to be checked against receive input variable.
Can any one suggest some resolution here?
Thanks.

Hi,
Here the option what I can think of is that use some unique element that you passing in first invoke for correlation and customize the external service to ask them to have your passed value as part of their queue values, That way you can correlate the messages and once correlated based on unique value you match up the tokens.
Suggesting this work around as, correlation will always need token, which is passed as an input to the first Invoke. so defining correlation based on output token is not possible.
If you find something please do share.
-Umesh

BPEL Correlation and timeouts

Hello,
I'd like to ask question regarging BPEL correlation and timeouts.
According to BPEL SE lifecycle schema - if BPEL SE receives message with defined correlation and value of the correlator in message doesn't match any active process instance BPEL keeps message waiting for process instance with particular correlation value
This behaviour is undesirable in situations where no process with particular correlator ever appears.
If the BPEL client is connected via HTTP/SOAP BC, then client timeout will just terminate HTTP connection to binding component, message exchange between BC and BPEL isn't closed.
I cannot manage to cancel connection due to timeout from EJB (if BPEL client is EJB, so it is connected via JavaEE SE).
Is there any possibility in BPEL SE to refuse messages correlated to non-existing process instances? Or is there any possibility to set client timeout from SOAP BC or J2EE SE on message-exchange level?
Vladimir

This is a feature that we would like to provide in the BPEL SE. In the immediate future we may be able to address this in part specifically the case you mentioned. The other cases that also needs to be addressed is where the incoming message's correlation ID matches with a running instance, but doesn't get consumed because the instance never took the path of consuming the message. These other use cases will be addressed as a feature later.
thanks,
-Kiran B

Related to BPEL Correlation in Oracle soa suite 11g?

When we are working with Correlations in BPEL where the correlation information will be saved in composite or DB ?

937471 wrote:
When we are working with Correlations in BPEL where the correlation information will be saved in composite or DB ?Why is this relevant? What are you trying to achieve here?

BPEL Correlation: ORABPEL-03812 Cannot find property alias.

HI,
I have created a BPEL process, that places a message into a JMS queue, and waits to receive a response in anoter JMS queue.
In both the request and response message types, there is a uuid field, that has been populated initially with generateGUID() function etc.
I plan to correlate based on this value.
I am using correlation sets to correlated to the BPEL instance using the uuid field in the request and response fields.
Ive gone by the book i.e. BPEL developer guide, in creating the Correlation set, property, property aliases etc.
I am able to successfully compile and deploy the process.
But on execution of the BPEL instance i get error as follows.
<default.collaxa.cube> <BaseCubeSessionBean::logError> Error while invoking bean "cube delivery": Cannot find property alias.
Cannot find the property alias "{http://pli.techm.com/JMSAsyncSyncProcess/correlationset}jms_uuid", message type "".
Please check your BPEL/WSDL source to make sure that property alias "{http://pli.techm.com/JMSAsyncSyncProcess/correlationset}jms_uuid" has been defined.
ORABPEL-03812
Cannot find property alias.
Cannot find the property alias "{http://pli.techm.com/JMSAsyncSyncProcess/correlationset}jms_uuid", message type "".
Please check your BPEL/WSDL source to make sure that property alias "{http://pli.techm.com/JMSAsyncSyncProcess/correlationset}jms_uuid" has been defined.
Due to this the BPEL process instance itself is not created and thus no further action can be taken.
Ive ensured that all necessary imports into the various wsdl files (including partner wsdl files) are present.
Can somebody please help?

Hi,
I solved the problem too :)
In the outbound jms adapter call, where the correlation is be started, there is an in|out|in-out attribute that needs to be set to out. probabaly signifies the outbound message from that node.
This worked :)
let me know if you tried something else...

Synchronous/Asynchronous BPEL Correlation

Is this possible?
When a message has to correlate with a BPEL process in a clustered environment of 2 nodes where both of them are active/active and a process instance that is capable of correlating with the message is waiting on one node, where as the message gets routed to the other node and a duplicate copy of the process starts on the other node joins and correlates with the message, and completes the processing on the other node. where as process instance on the first node times out after syncMaxWaitTime.
Server: 10.1.3.4 OC4J

4.How to deploy a project using a script?
http://jianmingli.com/wp/?p=2584
1.When we can create synchronous bpel process
Synchronus process need to create in case if you are expecting reply Immediately.
ex. this is usefull in case if you are using Database adapter as partner link in BPEL process. Because database Adapter operation used to give reply immediately.
2. When we can create asynchronous bpel process
Asynchronus process need to create in case if you when reply will come is not having time limit.
Example:- Suppose if you have one loan process in which we are invoking some of the webservices(ex United Star Loan, HDFC loan) which will send the intrest charges in reply but in this case reply can come at any time. Till that time BPEL process need to wait for indefinite amount of time. If Sync BPEL process will be used in the above case then the BPEL process will time out and that will come under faulted state.
3.When we can create empty bpel process
Define Service Later: Select to create an empty BPEL process service component with no activities.

BPEL Correlation and inMemoryOptimization + completionPersistPolicy

Hello,
I have a problem and I would like to know if it is "as expected" or if there is some workaround.
I have :
- a parent BPEL using a reference of type "Adapter JMS : request/reply".
- declared the properties "inMemoryOptimization" (false) and "completionPersistPolict" (On) on the parent BPEL
- a child BPEL which expose a service of type "Adapter JMS : consume message" and has a reference of type "Adapter JMS : produce message".
The child BPEL set the JMSCorrelationID in the response with the JMSMessageID of the request.
The parent BPEL just invoke the partner link (adapter jms : request/reply).
If I test my SOA composite like this, all is fine. The parent BPEL call the child BPEL and the response of the child BPEL is correlated correctly.
Now if I deploy the same SOA composite while setting the "inMemoryOptimization" to "true" and "completionPersistPolicy" to "Faulted", then the correlation doesn't work anymore.
I suspect that the behaviour is "as expected" since I disabled the BPEL persistence (but it's kind of annoying).
Can someone confirme that it is normal ? And also if possible what is the minimum persistence policy needed for the correlation feature ?
thanks in advance,
mathieu

This is a feature that we would like to provide in the BPEL SE. In the immediate future we may be able to address this in part specifically the case you mentioned. The other cases that also needs to be addressed is where the incoming message's correlation ID matches with a running instance, but doesn't get consumed because the instance never took the path of consuming the message. These other use cases will be addressed as a feature later.
thanks,
-Kiran B

How to use Correlation set to persist record in BPEL for multiple request

Hi ,
I need to persist record in BPEL as it a stateful.I am using soa suite 11.1.1.5 v.The purpose is to persist multiple messages from single service/partnerLink(JMSAdapter)and aggregated to form a group message using BPEL correlation set concept
There are 5 message in a JMS queue like 1st message ->one,2nd message->two,3rd message->three,4th message->four,5th message->empty
All are text messages.Last message/string is an empty message.
IS it possible in bpel to fetch all the 5 message(using JMS adapter) under one single instance and append all messsage until empty string is not coming?
My final output would be one single message:*onetwothreefour*

Can you contact me offline @ [email protected] ?

Names of correlation properties

Hello.
What is the best practice:
- give same name to all properties in correlation set
- give each property own name
I quite don't understand philosophy of naming properties. When all properties in correlation set has same name then all looks same in property window because wizard can't recognize which property alias become to right property.
When each property has own name then BPEL has other troubles and can't be compiled. (Error(245):
[Error ORABPEL-10036]: invalid correlation set
[Description]: in line 245 of "C:\jdevstudio10133\jdev\mywork\Orange\prepaid\bpel\process.bpel", correlation set "processCorrelationSet" cannot be used in this <correlation>, because property "{http://xmlns.oracle.com/process/correlationset}process1_property of this correlation set is not associated with the message "{http://xmlns.oracle.com/process}processRequestMessage".
[Potential fix]: make sure every each property of the correlation set "processCorrelationSet" is associated with the messageType "{http://xmlns.oracle.com/process}processRequestMessage" by a <propertyAlias> in one of the WSDLs.)
Can anybody clarify this?
Thanks.

Hello,
This is the default column. I didnu2019t add column heading. But I replaced the name of the column by words.
I havenu2019t change the property of column heading.
It is a cross tab.

JMS Native Correlation

Has anyone here had any experience with JMS adapter native correlation. It seems that in order to use BPEL correlation you can only correlate on sections of the message payload which isnt ideal for my scenerio.
I've started looking at native adapter correlation but cant seem to get it to work. If anyone has a bit of a heads up about this it would be great.
Cheers
Ian Harrigan

sorry, i forgot the say one thing.....
There is a table in the orabpel that is named Native_correlation....
somehow this table is never populated...
Tks once more

Functional Acknowledgement in BPEL

Hi,
I have a source BPEL , BPEL A which will insert the record into a target table and should sleep. There is BPEL B which will poll the target table and process the record which BPEL A has put. As soon as the BPEL B is finishes processing the record BPEL A shold resume and complete the process ( To ensure that the record has been processed successfully ). Is there any way that BPEL B acknowledge BPEL A that the record has been processed? ( In real conditions BPEL A can put record into a table and the record passes multiple tables and finally reaches the target table, can BPEL A wait till that record successfully reach the target.)
Thanks,
Ramesh

Yes you can. Process A should have a Receive activity on the client partnerlink with a differernt operation . It wil wait on this activity for a message. Process B should Invoke Process A on this operation and send the message.
You should use your own correlation-set to pass the correct message from B to the A. The correlation should on be defined on process A.
http://orasoa.blogspot.com/2006/07/bpel-correlation-this-usefull-article.html
Marc

BPM 11g - Human task not removed when interrupting boundary event fired

In BPM 11g (11.1.1.1.3), I am testing a message catch event on the boundary of a human task. It is set for interrupting, so it should, when the event fires, remove the human task from the work list and follow the flow out of the event. The event flow is being followed, but the human task is being left active in the user's work list. I would expect the human task to be removed when the interrupting boundary message event occurs.
I think this is a bug, but would welcome any suggestions on how to solve it. Does anyone know if this works in the latest release (11.1.1.1.4)? We might upgrade pretty soon. Has anyone else tried boundary message events and gotten them to work properly in BPM 11g?
Just FYI....in order to make the BPM message event occur and provide instance correlation, we had to add a mediator and BPEL correlation. We followed process documented in a previous post to do this (http://blog.andrade.inf.br/2011/01/implementing-correlation-in-bpm-11gr1.html). Thanks to whomever posted that...it got us a few steps further along!

I do not think this is bug based on
Oracle® Fusion Middleware Modeling and Implementation Guide for Oracle Business Process Management
23.1.1 Understanding the Relationship Between SOA Composites and SOA Components
"In a similar way, when an interrupting timer or message boundary event arrives to a user task, the BPMN process instance leaves the user task but the associated Human Task remains available. Because the interrupting timer or message boundary event arrived before the user completes the user task, the human task remains unfinished, and you can still access it thought the Worklist application. However running that human task does not have any effect on the BPMN process."
This also gives us big trouble. I am looking for the solution.
Helen

Behaviour of EDN in RC3

Having worked with RC3 of SOA Suite 11g, particularly the new EDN features, I have come across the following issues:
The use case I am trying to model is that I have, for example, three orders. The first is for the physical installation of a telephone line, and the other two are for services. These orders were all raised at different times and are only connected by virtue of the fact that they are for the same customer using the same telephone number. The dependency between the orders is relevant only at a certain point, i.e. the service orders can only be tested end-to-end when the line has been installed. I therefore have three ongoing order processes, where the line order will at some stage raise the Line Installed event, with the other two order processes waiting. The correlation id is, for argument's sake, the telephone number.
When subscribing to specific events in a BPEL process I cannot use the correlation set mechanism to have multiple instances of the same process waiting for the same event with the same correlation id, in this instance the telephone number. I get the following error:
+Conflicting receive. A similar receive activity is being declared in the same process. Another receive activity or equivalent (currently, onMessage branch in a pick activity) has already been enabled with the partnerLink "", operation name "" and correlation set "{{http://xmlns.oracle.com/TestApp/EventListen/ProcessRequest/correlationset}TelephoneNumber={http://xmlns.oracle.com/TestApp/EventListen/ProcessRequest/correlationset}TelephoneNumber=115}" (or conversation ID). Appendix A - Standard Faults in the BPEL 1.1 specification specifies a fault should be thrown under these conditions. Redeploy the process after removing the conflicting receive activities.+
This means I cannot have any master/detail coordination events where the key is, for example, the common order id. While this is understandable from the point of view of correlations - which are designed to support bilateral conversations - it is no good for the more generic event processing where multiple identical subscribers exist for a single event.
A further downside of using the existing correlation functionality is that I need to initiate the correlation set with an invoke before I can subscribe to the event in a receive. This underlines the conversational nature of the design, whereas an event subscription, even for a specific key, can be entirely disconnected.
My question now is: am I missing something or should this functionality be amended (I understand that EDN for BPEL will not actually make it to the first GA release)?
Further to that, for a mediator component, which subscribes to an event, I can only define a filter based on the event payload. What I am looking for is a way where the event subscription takes an additional variable carrying values which can be used to construct the filter statement, e.g. an order number. It may be possible to do this, but I haven't seen any way how to.

This is an interesting post from a design pattern perspective. I'm not sure what Oracle will say, although I think the nature of an event and event payload should remain disconnected from a particular component implementation requirement (such as BPEL correlation); however, I think there should be utilities and pattern support in the Mediator component (see below).
Here's a couple thoughts:
1. One potential workaround would be to have the three orders (in your example), write the telephone number and say the unique ID of the process instance to a custom database table (before the async Receive activity that is). Base the correlation set on the multi-part key (telephone number + process unique ID). Write the Mediator component that is fired by the LineInstalled event so that it looks up all the process instances that relate to the telephone number (from the event payload) and calls each of the three (i.e. correlated with the appropriate process ID). Each re-hydrated process should then delete the respective row from the lookup table...
2. Oracle should make a fan-out pattern of #1 easy by providing a seeded lookup service or embedded function (that can be called by a mediator or other component) that returns from the BPEL store, all -ACTIVE- instances that match a partial-correlation key, etc.
(Maybe this pattern and utility function exists already -- I am far from a Mediator expert...)
-Todd

Muliple process interactions with client

Is it possible to have multiple interactions with the client?
I have a BPEL process that calls a web service and then replies to the user what is sent back. This is then used by the user to invoke another web service through the business process.
In other words: the client initiates the process, the process uses this to invoke a service. The reply is sent to the user. The user then sends another message to the process which uses this to invoke another service. The result of the service invocation is sent to the user by the process.
This seems really simple but I am having trouble achieving this and all examples seem to be one invocation by the client and then one repliy. If anyone knows if/how this can be achieved it would be greatly appreciated.
thanks,
Clive
Edited by: clive jefferies on Dec 3, 2008 10:51 AM

yes, its pretty much possible to call the same BPEL instance again and again. This is called Asynchronous call back, and is possible with WS-Addressing or you can use the BPEL Correlation set to achieve this functionality.
Here is a step by step tutorial on how to achieve this,
http://technology.amis.nl/blog/2813/use-bpel-correlation-sets-for-repeated-synchronous-access-to-long-running-bpel-processes
Hope this will resolve your problem...
-Abhi

Multiple interactions with client

Is it possible to have multiple interactions with the client?
I have a BPEL process that calls a web service and then replies to the user what is sent back. This is then used by the user to invoke another web service through the business process.
In other words: the client initiates the process, the process uses this to invoke a service. The reply is sent to the user. The user then sends another message to the process which uses this to invoke another service. The result of the service invocation is sent to the user by the process.
This seems really simple but I am having trouble achieving this and all examples seem to be one invocation by the client and then one/many replies. If anyone knows if/how this can be achieved it would be greatly appreciated.
thanks,
Clive

yes, its pretty much possible to call the same BPEL instance again and again. This is called Asynchronous call back, and is possible with WS-Addressing or you can use the BPEL Correlation set to achieve this functionality.
Here is a step by step tutorial on how to achieve this,
http://technology.amis.nl/blog/2813/use-bpel-correlation-sets-for-repeated-synchronous-access-to-long-running-bpel-processes
Hope this will resolve your problem...
-Abhi

BPEL Correlation

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