@InterfaceAudience.Private public interface SubprocedureFactory
Subprocedure buildSubprocedure(String procName, byte procArgs)
Subprocedure when requested.
procName - name of the procedure associated with this subprocedure
procArgs - arguments passed from the coordinator about the procedure
Subprocedure to run or null if the no operation should be run
IllegalArgumentException - if the operation could not be run because of errors in the
IllegalStateException - if the current runner cannot accept any more new requests
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