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

Method Summary

Modifier and Type	Method and 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.
protected static long	swigRelease(SequenceVar obj)
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, swigRelease, unfreezeQueue

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

getCPtr, swigRelease

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceVar

protected SequenceVar(long cPtr,
                      boolean cMemoryOwn)

SequenceVar

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

Method Detail

getCPtr

protected static long getCPtr(SequenceVar obj)

swigRelease

protected static long swigRelease(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.