/**
* Copyright (c) 1999-2014, Ecole des Mines de Nantes
* All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the Ecole des Mines de Nantes nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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*/
package solver.constraints.nary.cnf;
import solver.Solver;
import solver.constraints.Constraint;
import util.ESat;
/**
* <br/>
*
* @author Charles Prud'homme
* @since 22 nov. 2010
*/
public class SatConstraint extends Constraint {
final PropSat miniSat;
public SatConstraint(Solver solver) {
super("SatConstraint",new PropSat(solver));
miniSat = (PropSat) propagators[0];
}
@Override
public ESat isSatisfied() {
ESat so = ESat.UNDEFINED;
for (int i = 0; i < propagators.length; i++) {
so = propagators[i].isEntailed();
if (!so.equals(ESat.TRUE)) {
return so;
}
}
return so;
}
public SatSolver getSatSolver() {
return miniSat.getSatSolver();
}
public PropSat getPropSat() {
return miniSat;
}
}