Custom Activity Node - FlowRunner using input data

In ProcessFlow one of the custom activity node built in java beans is the "FlowRunner" which triggers a new ProcessFlow.

One of the options in FlowRunner is to not generate a new workunit (no logan database entries, no logs, etc).

Does anyone know how to access inputData in the child process if the no workunit option is used?

--edited 4:55pm pacific 1/14/2013 - clarified no workunit option is being used, i can get to the data if a workunit is generated, but in this case I want to prevent a workunit from being created so I can run multiple instances of a small processflow without generating too many unnecessary logs / database entries.