17.0 Object triggers > Trigger variables > How-to's > Requiring variables from generations of parent objects
17.20.4 Requiring variables from generations of parent objects
Context
By default, triggers look for variables to fulfill dependencies in the object to which they are directly attached. If they are attached to a job object, they will also look in the job group, if defined. However, it is not uncommon for objects to have multiple generations of parent objects. If the desired behavior is to search through all parent objects, do the following task.
To require variables from generations of parent objects
- Set the Requires attribute in the trigger to the required variable, preceded by a caret (^).
EType=start,AType=exec,Action="/tmp/trigger2.sh",Requires=^Var1
The trigger searches through the parent objects in which it resides for the variable Var1.