Creating simple Business Rules in BPEL process

Question

Hi,
I have an environment consisting of SOA Suite 11g running on Weblogic Server. I'm using JDeveloper 11g for development.
Scenario
I have a BPEL process which starts off by polling a DB table and I then assign the input to a Recieve activity's InputVariable. I have a 'Number' column which will contain a number between 1 and 3. I then require Business Rules (BR) to be set up which read this value, and based on the number, assign a 'Name' string (which is to be the output variable from the business rules) to be used later on in BPEL process.
Problem - I have followed the basic tutorials available in order to set up the business rules, but am getting numerous errors. Firstly, I sometimes find that my input/output variables created during setup of BR component and the XSD based on this, does not have XML Faces automatically created for it (therefore have to create it myself by clicking on the + button and doing this for each element of XSD). When I do get this working, I then double-click on my Business Rules activity in my BPEL process, only to find that the input/output variables here no longer are assignable to my BR input/output variables as I get the following error "Exception: Problem Building Schema!".
I am not sure why this is, but suspect that my XSD (which is very simple anyway) or the setup steps I follow to define the link to my XSD, are wrong.
I have taken the following steps so far:
1. Create empty BPEL process
2. Set up polling adapter to poll DB table
3. Create Receive activity and assigned polled input to created variable
4. Add Business Rules component to composite and set up and create dictionary here. Also set up inputs/outputs to be in form of my XSD elements.
5. Add Business Rules component to my BPEL process and configure this to include input/output variables (*This is where error occurs*)
6. Go back to .rules component in composite to define rule and define rule
Upon deployment, I get many errors most of which pertain to "Unresolved XML element... make sure XML element +xxxxx+ is defined in one of WSDL's that are referenced by the deployment descriptor."
I have only imported a simple XSD containing two elements to this project. The other XSD is the one of my polling adapter. I've not created any input/output variables for the overall BPEL process as didn't think I was required to.
Can you please help in getting this process doing the simple activities described at the top.
I appreciate your help.
Edited by: user10248308 on 10-Mar-2010 11:49

Answer 1

Hi,
Create a project with BPEL composite
Now drag a business rule
Now create input variable of type ur requestelement
and output variable of type response element
Now in rules designer page take decision table
and then craete a condition (inputelement.input > 1000) and in the rule select true
now create another rule select false
Npw create an action with assertion and select the parameterized box there
now in designer page for first rule assign some value (say 500) and for second rule some value(100)
Now in bpel u have to assign a value to input var of BR
Deploy the process
If u supply 10000 u will get 500
if u supply 100 u will get 100
In the same way u can do by using If-Then
You can use facts and bucketsets according to ur requirement
Regards
PavanKumar.M
PavanKumar.M