Counter in BPEL

Question

Hello,
I want to implement a counter in BPEL.
I have a String called CDConnect
First run of composite request, i want to append 001 to CDConnect. Like CDConnect001
Next run of request, it shoud be incremented by 1 so Like CDConnect002
Next run be Like CDConnect003
Next run CDConnect003
so, see the counter keeps incrementing from previous by 1 (it should not reset to Zero on next run). How can i achieve this ? what is simple / best way in Bpel
snippet welcome.
thx
dd

Answer 1

Please correct me SOA Gurus if I am wrong,
"I don't think there is any function inside a composite (web service), which can tell you how many times a service itself was called. "
I have a use case which can help you.
Usecase:
One BPEL process (BpelProcess1) invoking other BPEL process (BPELProcess2) and want to know how many times that BPELProcess2 was invoked.
Solution:
Inside BPELProcess1 put the Invoke activity (for BPELProcess2) inside a while loop and put a Assign activity after invoke
Inside the assign activity increment the counter variable "counter+1", now add an additional element inside the payload
of the BPELProcess2 and pass that counter value to that BPELProcess2.
-Yatan