Package com.google.ortools.constraintsolver

Class SequenceVar

java.lang.Object
com.google.ortools.constraintsolver.BaseObject
com.google.ortools.constraintsolver.PropagationBaseObject
com.google.ortools.constraintsolver.SequenceVar
public class SequenceVar
extends PropagationBaseObject
A sequence variable is a variable whose domain is a set of possible
orderings of the interval variables. It allows ordering of tasks. It
has two sets of methods: ComputePossibleFirstsAndLasts(), which
returns the list of interval variables that can be ranked first or
last; and RankFirst/RankNotFirst/RankLast/RankNotLast, which can be
used to create the search decision.

  • Field Summary

    Fields inherited from class com.google.ortools.constraintsolver.BaseObject

    swigCMemOwn

  • Constructor Summary

    Constructors
    Modifier Constructor Description
    protected SequenceVar​(long cPtr, boolean cMemoryOwn)  
      SequenceVar​(Solver s, IntervalVar[] intervals, IntVar[] nexts, java.lang.String name)  

  • Method Summary

    Modifier and Type Method Description
    void accept​(ModelVisitor visitor)
    Accepts the given visitor.
    void delete()  
    protected void finalize()  
    protected static long getCPtr​(SequenceVar obj)  
    IntervalVar interval​(int index)
    Returns the index_th interval of the sequence.
    IntVar next​(int index)
    Returns the next of the index_th interval of the sequence.
    void rankFirst​(int index)
    Ranks the index_th interval var first of all unranked interval
    vars.
    void rankLast​(int index)
    Ranks the index_th interval var first of all unranked interval
    vars.
    void rankNotFirst​(int index)
    Indicates that the index_th interval var will not be ranked first
    of all currently unranked interval vars.
    void rankNotLast​(int index)
    Indicates that the index_th interval var will not be ranked first
    of all currently unranked interval vars.
    void rankSequence​(int[] rank_first, int[] rank_last, int[] unperformed)
    Applies the following sequence of ranks, ranks first, then rank
    last.
    long size()
    Returns the number of interval vars in the sequence.
    java.lang.String toString()  

    Methods inherited from class com.google.ortools.constraintsolver.PropagationBaseObject

    baseName, enqueueDelayedDemon, enqueueVar, freezeQueue, getCPtr, hasName, name, reset_action_on_fail, set_variable_to_clean_on_fail, setName, solver, unfreezeQueue

    Methods inherited from class com.google.ortools.constraintsolver.BaseObject

    getCPtr

    Methods inherited from class java.lang.Object

    clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

  • Constructor Details

    • SequenceVar

      protected SequenceVar​(long cPtr, boolean cMemoryOwn)

    • SequenceVar

      public SequenceVar​(Solver s, IntervalVar[] intervals, IntVar[] nexts, java.lang.String name)

  • Method Details

    • getCPtr

      protected static long getCPtr​(SequenceVar obj)

    • finalize

      protected void finalize()
      Overrides:
      finalize in class PropagationBaseObject

    • delete

      public void delete()
      Overrides:
      delete in class PropagationBaseObject

    • toString

      public java.lang.String toString()
      Overrides:
      toString in class PropagationBaseObject

    • rankFirst

      public void rankFirst​(int index)
      Ranks the index_th interval var first of all unranked interval
      vars. After that, it will no longer be considered ranked.

    • rankNotFirst

      public void rankNotFirst​(int index)
      Indicates that the index_th interval var will not be ranked first
      of all currently unranked interval vars.

    • rankLast

      public void rankLast​(int index)
      Ranks the index_th interval var first of all unranked interval
      vars. After that, it will no longer be considered ranked.

    • rankNotLast

      public void rankNotLast​(int index)
      Indicates that the index_th interval var will not be ranked first
      of all currently unranked interval vars.

    • rankSequence

      public void rankSequence​(int[] rank_first, int[] rank_last, int[] unperformed)
      Applies the following sequence of ranks, ranks first, then rank
      last. rank_first and rank_last represents different directions.
      rank_first[0] corresponds to the first interval of the sequence.
      rank_last[0] corresponds to the last interval of the sequence.
      All intervals in the unperformed vector will be marked as such.

    • interval

      public IntervalVar interval​(int index)
      Returns the index_th interval of the sequence.

    • next

      public IntVar next​(int index)
      Returns the next of the index_th interval of the sequence.

    • size

      public long size()
      Returns the number of interval vars in the sequence.

    • accept

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