Implement WHILE Loop in BPEL Process in SOA suite 12C

In this article we will discuss about another activity while loop in BPEL process. This example will display the series of number in reverse based on loopcounter. Follow the below steps.

1. Create a project under same application. Go to File -> New -> Project -> SOA Project. Enter project name and then select Composite With BPEL Process in the next wizard
2. Click on FINISH button and BPEL Process creation wizard will open. Enter BPEL process name and select Synchronous BPEL Process option as template type. Expose this BPEL process as a SOAP service.
3. Create two variables in the BPEL process. Click on Variable icon in the main scope. Create two variables a�� loopCounter and resultVar and variable type will be integer
4. Drag and drop ASSIGN activity after receiveInput
5. Double click on Assign activity and assign loopcounter value to input payload
6. Select WHILE activity from Structured Activities component and drag and drop it after Assign activity
7. Double click on while activity and give condition by clicking on expression icon. Condition will be like below screenshot ($loopCounter>0)
8. Drag and drop another ASSIGN activity within WHILE activity
9. Double click on assign activity and add expressions to resultVar and loopCounter
10. resultVar: concat($resultVar , $loopCounter) A� A� A� A�loopCounter: $loopCounter – 1
11. Editor wizard of assign activity will look like this
12. Add one more ASSIGN activity after WHILE activity and assign resultvar to output payload
13. Now BPEL process will be like the below screenshot
14. Deploy the project and test it in EM console