Using timeout items and running the background engine

Question

Hi all!
I tried to read all the information about timeouts and engine, but I think I don't understand anything.
I want to use a loop, that after every 4 minutes runs the given plsql code until 15 times.
There are 4 different result. 1: continue the loop, 2: good result, 3: bad result, 4: loop reachs max running count (15).
1. I don't know how to set the result code.
2. How start the background engine. Is it startable from my plsql code? I have to start the engine at every item_type and item_key pair, or I have to start it only once?

Answer 1

You need not handle Loop Max out in your result. You can handle that usng Loop Counter standard activity that you can find in the WF Builder. Insert this counter in the Loop.
Write a simple Function Activity that you want to be executed every 4 minutes. That also sits in the Loop.
Now insert a WAIT activity in the loop that should wait for 4 minutes relative to the current completion time. So, that loop will look like...
----> Function ----> Wait ----> Loop Counter ----> (Go back to Function on loop... exit out if maxed out)
The exit condition transition for the loop occurs from Loop Counter activity.
You don't need a timeout here anywhere. Running background engine should be purely outside of your code. It is a concurrent program that you can schedule to run at regular intervals for whatever parameter you choose.
Thanks
Vijay