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# XpressProblem.CallbackAPI.CutRoundCallback

- com.dashoptimization.objects.XpressProblem.CallbackAPI.CutRoundCallback

- Enclosing class:
    XpressProblem.CallbackAPI
  Functional Interface:
    This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

      @FunctionalInterface
      public static interface XpressProblem.CallbackAPI.CutRoundCallback

  Interface to capture `cutround` events in an `XpressProblem`. More details about `cutround` events can be found in the documentation of the corresponding C callback.
  See Also:
    C documentation of XPRSaddcbcutround()

- - ### Method Summary

    Modifier and Type | Method | Description
    --- | --- | ---
    `void` | `cutRound​(XpressProblem cbprob, int ifxpresscuts, IntHolder p_action)` | Handle a `cutround` event.

- - ### Method Detail

    - #### cutRound

          void cutRound​(XpressProblem cbprob,
                        int ifxpresscuts,
                        IntHolder p_action)

      Handle a `cutround` event. More details about `cutround` events can be found in the documentation of the corresponding C callback.
      Parameters:
        `cbprob` - The problem passed to the callback function, `cutround`.
        `ifxpresscuts` - An integer set to 1 if the Optimizer will apply a round of cuts after this callback. 0 otherwise.
        `p_action` - An integer return value that specifies the action the Optimizer should take:
        - `-1`: Continue unchanged. The default action.
        - `0`: No further rounds of cuts should be applied on this node.
        - `1`: The Optimizer should apply one more round of cutting, regardless of the value of `ifxpresscuts`
        - `2`: The Optimizer should process any changes applied during this callback and fire the callback again, but skip any Optimizer cutting.
      See Also:
        C documentation of XPRSaddcbcutround()

Parent Topic Interface Summary

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