Let's assume a variation on Nurse Rostering example in which instead of assigning a nurse to a shift on a day, the nurse is assigned to a variable number of timeblocks on that day (which consists of 24 timeblocks). eg: Nurse1 is assigned to timeblocks [8,9,10,11,12,13,14]. Let's call these consecutive assignments a ShiftPeriod. There is a hard minimum and maximum on these shiftperiods. However, optaplanner has difficulties finding a feasible solution.
When having hard consecutive constraints, is it better to model the planning entity as a startTimeBlock with a duration instead of my current way with assignment to a timeblock and a day and then imposing min/max consecutive?