Initializing help system before first use

XpressProblem.CallbackAPI.PreIntsolCallback

  • com.dashoptimization.objects.XpressProblem.CallbackAPI.PreIntsolCallback

    • Method Detail

      • preIntsol

        void preIntsol​(XpressProblem cbprob,
               int soltype,
               IntHolder p_reject,
               DoubleHolder p_cutoff)
        Handle a preintsol event. More details about preintsol events can be found in the documentation of the corresponding C callback.
        Parameters:
        cbprob - The problem passed to the callback function, preintsol.
        soltype - The type of MIP solution that has been found:
        • 0: The continuous relaxation solution to the current node of the tree search, which has been found to be integer feasible.
        • 1: A MIP solution found by a heuristic.
        • 2: A MIP solution provided by the user.
        p_reject - Set this to 1 if the solution should be rejected. When soltype is zero, this will also drop the node problem.
        p_cutoff - The new cutoff value that the Optimizer will use if the solution is accepted. If p_cutoff is assigned a value, the new value will be used instead. The cutoff value will not be updated if the solution is rejected.
        See Also:
        C documentation of XPRSaddcbpreintsol()
Parent Topic Interface Summary

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