Package com.google.ortools.constraintsolver

Class IntervalVar

  • public class IntervalVar
extends PropagationBaseObject
    Interval variables are often used in scheduling. The main characteristics
    of an IntervalVar are the start position, duration, and end
    date. All these characteristics can be queried and set, and demons can
    be posted on their modifications.

    An important aspect is optionality: an IntervalVar can be performed or not.
    If unperformed, then it simply does not exist, and its characteristics
    cannot be accessed any more. An interval var is automatically marked
    as unperformed when it is not consistent anymore (start greater
    than end, duration < 0...)

    • Constructor Detail

      • IntervalVar

        protected IntervalVar​(long cPtr,
                      boolean cMemoryOwn)

    • Method Detail

      • getCPtr

        protected static long getCPtr​(IntervalVar obj)

      • swigRelease

        protected static long swigRelease​(IntervalVar obj)

      • getKMinValidValue

        public static long getKMinValidValue()
        The smallest acceptable value to be returned by StartMin()

      • getKMaxValidValue

        public static long getKMaxValidValue()
        The largest acceptable value to be returned by EndMax()

      • startMin

        public long startMin()
        These methods query, set, and watch the start position of the
        interval var.

      • startMax

        public long startMax()

      • setStartMin

        public void setStartMin​(long m)

      • setStartMax

        public void setStartMax​(long m)

      • setStartRange

        public void setStartRange​(long mi,
                          long ma)

      • oldStartMin

        public long oldStartMin()

      • oldStartMax

        public long oldStartMax()

      • whenStartRange

        public void whenStartRange​(Demon d)

      • whenStartRange

        public void whenStartRange​(java.lang.Runnable closure)

      • whenStartBound

        public void whenStartBound​(Demon d)

      • whenStartBound

        public void whenStartBound​(java.lang.Runnable closure)

      • durationMin

        public long durationMin()
        These methods query, set, and watch the duration of the interval var.

      • durationMax

        public long durationMax()

      • setDurationMin

        public void setDurationMin​(long m)

      • setDurationMax

        public void setDurationMax​(long m)

      • setDurationRange

        public void setDurationRange​(long mi,
                             long ma)

      • oldDurationMin

        public long oldDurationMin()

      • oldDurationMax

        public long oldDurationMax()

      • whenDurationRange

        public void whenDurationRange​(Demon d)

      • whenDurationRange

        public void whenDurationRange​(java.lang.Runnable closure)

      • whenDurationBound

        public void whenDurationBound​(Demon d)

      • whenDurationBound

        public void whenDurationBound​(java.lang.Runnable closure)

      • endMin

        public long endMin()
        These methods query, set, and watch the end position of the interval var.

      • endMax

        public long endMax()

      • setEndMin

        public void setEndMin​(long m)

      • setEndMax

        public void setEndMax​(long m)

      • setEndRange

        public void setEndRange​(long mi,
                        long ma)

      • oldEndMin

        public long oldEndMin()

      • oldEndMax

        public long oldEndMax()

      • whenEndRange

        public void whenEndRange​(Demon d)

      • whenEndRange

        public void whenEndRange​(java.lang.Runnable closure)

      • whenEndBound

        public void whenEndBound​(Demon d)

      • whenEndBound

        public void whenEndBound​(java.lang.Runnable closure)

      • mustBePerformed

        public boolean mustBePerformed()
        These methods query, set, and watch the performed status of the
        interval var.

      • mayBePerformed

        public boolean mayBePerformed()

      • cannotBePerformed

        public boolean cannotBePerformed()

      • isPerformedBound

        public boolean isPerformedBound()

      • setPerformed

        public void setPerformed​(boolean val)

      • wasPerformedBound

        public boolean wasPerformedBound()

      • whenPerformedBound

        public void whenPerformedBound​(Demon d)

      • whenPerformedBound

        public void whenPerformedBound​(java.lang.Runnable closure)

      • whenAnything

        public void whenAnything​(Demon d)
        Attaches a demon awakened when anything about this interval changes.

      • whenAnything

        public void whenAnything​(java.lang.Runnable closure)
        Attaches a closure awakened when anything about this interval changes.

      • startExpr

        public IntExpr startExpr()
        These methods create expressions encapsulating the start, end
        and duration of the interval var. Please note that these must not
        be used if the interval var is unperformed.

      • durationExpr

        public IntExpr durationExpr()

      • endExpr

        public IntExpr endExpr()

      • performedExpr

        public IntExpr performedExpr()

      • safeStartExpr

        public IntExpr safeStartExpr​(long unperformed_value)
        These methods create expressions encapsulating the start, end
        and duration of the interval var. If the interval var is
        unperformed, they will return the unperformed_value.

      • safeDurationExpr

        public IntExpr safeDurationExpr​(long unperformed_value)

      • safeEndExpr

        public IntExpr safeEndExpr​(long unperformed_value)

      • accept

        public void accept​(ModelVisitor visitor)
        Accepts the given visitor.