Workflow subflows
A workflow can create another child workflow
in Gosu by using the scriptable createSubFlow
method on Workflow. There
are multiple versions of this method:
Workflow.createSubFlow(workflow)
Workflow.createSubFlow(workflow, version)A subflow has the same foreign keys to business data
as the parent flow. It also has an edge foreign key reference to the
caller Workflow instance,
accessed as Workflow.caller.
(If internal code, and not some other workflow, calls a macro workflow, this field is null.)
Each workflow also has a subFlow s array that lists all
the flows created by the workflow, including the completed ones. (This
array is empty for workflows that have yet to create any subflows.) The
Gosu to access this array is:
Workflow.SubFlowsYou can use subflows to implement
simple parallelism in internal workflows, which is otherwise impossible
as a single workflow instance cannot be in two steps simultaneously.
For example, it is possible for the macro flow to create a subflow in
step A. It can then leave this subflow to do its own work, and only wait
for it to complete in step E. It is your responsibility as the one configuring
the macro workflow to decide how to react if a subflow drops into Error mode or becomes canceled
for some reason.
See also