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A graph module for Choco Solver.

There is a newer version: 4.2.2

/*
 * Copyright (c) 1999-2014, Ecole des Mines de Nantes
 * All rights reserved.
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 * modification, are permitted provided that the following conditions are met:
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
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/**
 * Created by IntelliJ IDEA.
 * User: Jean-Guillaume Fages
 * Date: 14/01/12
 * Time: 01:03
 */

package org.chocosolver.graphsolver.cstrs.cost;

import gnu.trove.list.array.TIntArrayList;
import org.chocosolver.solver.exception.ContradictionException;

public interface GraphLagrangianRelaxation extends IGraphRelaxation {


    /**
     * @param b true iff the relaxation should not be triggered before a first solution is found
     */
    void waitFirstSolution(boolean b);

    // mandatory arcs
    boolean isMandatory(int i, int j);

    TIntArrayList getMandatoryArcsList();

    // get a default minimal value
    double getMinArcVal();

    // some primitives
    void contradiction() throws ContradictionException;

    void remove(int i, int j) throws ContradictionException;

    void enforce(int i, int j) throws ContradictionException;
}