Implementation of a
StateOperator
that provides a parent state
as follows:
- If any child is ACTIVE/EXECUTING then evaluate to ACTIVE.
- If any child is STARTED then evaluate to STARTED.
- If any child is EXCEPTION then evaluate to EXCEPTION.
- If any child is INCOMPLETE then evaluate to INCOMPLETE.
- If any child is READY then evaluate to READY.
- Evaluate to COMPLETE.
This Operator is used in many
Structural
jobs to calculate parent state. An ACTIVE or STARTED state is returned
even if a child has failed because this is necessary to keep Oddjob
alive if no other job has started a none daemon thread.