Talend Open Studio Cookbook

Returning codes from a child job without tDie

In this recipe we will show how return codes can be set in a child job and used in a parent, without having to kill the child process.

Getting ready

Open the job jo_cook_ch11_0060_childReturnCodesNoDie. This job is the end state of the previous recipe.

How to do it…

The first thing we need to do is add the return code value to a buffer for the parent job to pick up.

Buffering the return code

1. Open task_1 and replace the tDie component with a tFixedFlowInput component.
2. Add an Integer column to the tFixedFlowInput component called returnCode.
3. Set the value to 4.
4. Add a tBufferOutput component and add a flow from the tFixedFlowInput component to it.

   Capturing and storing the return code in the parent

5. Return to the ...