1 /*
2 * SAT4J: a SATisfiability library for Java Copyright (C) 2004-2006 Daniel Le Berre
3 *
4 * Based on the original minisat specification from:
5 *
6 * An extensible SAT solver. Niklas E?n and Niklas S?rensson. Proceedings of the
7 * Sixth International Conference on Theory and Applications of Satisfiability
8 * Testing, LNCS 2919, pp 502-518, 2003.
9 *
10 * This library is free software; you can redistribute it and/or modify it under
11 * the terms of the GNU Lesser General Public License as published by the Free
12 * Software Foundation; either version 2.1 of the License, or (at your option)
13 * any later version.
14 *
15 * This library is distributed in the hope that it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
18 * details.
19 *
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this library; if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 */
25
26 package org.sat4j.minisat.constraints;
27
28 import org.sat4j.minisat.constraints.card.MaxWatchCard;
29 import org.sat4j.minisat.constraints.card.MinWatchCard;
30 import org.sat4j.minisat.constraints.cnf.LearntWLClause;
31 import org.sat4j.minisat.core.Constr;
32 import org.sat4j.specs.ContradictionException;
33 import org.sat4j.specs.IVecInt;
34
35 /**
36 * @author leberre To change the template for this generated type comment go to
37 * Window - Preferences - Java - Code Generation - Code and Comments
38 */
39 public class CardinalityDataStructureYanMax extends
40 AbstractCardinalityDataStructure {
41
42 private static final long serialVersionUID = 1L;
43
44 /*
45 * (non-Javadoc)
46 *
47 * @see org.sat4j.minisat.DataStructureFactory#createClause(org.sat4j.datatype.VecInt)
48 */
49 public Constr createClause(IVecInt literals) throws ContradictionException {
50 return MaxWatchCard.maxWatchCardNew(solver, getVocabulary(), literals,
51 MinWatchCard.ATLEAST, 1);
52 }
53
54 public Constr createUnregisteredClause(IVecInt literals) {
55 return new LearntWLClause(literals, getVocabulary());
56 }
57
58 /*
59 * (non-Javadoc)
60 *
61 * @see org.sat4j.minisat.DataStructureFactory#createCardinalityConstraint(org.sat4j.datatype.VecInt,
62 * int)
63 */
64 @Override
65 public Constr createCardinalityConstraint(IVecInt literals, int degree)
66 throws ContradictionException {
67 return MaxWatchCard.maxWatchCardNew(solver, getVocabulary(), literals,
68 MinWatchCard.ATLEAST, degree);
69 }
70
71 }