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.MinWatchCard;
29 import org.sat4j.minisat.constraints.cnf.LearntWLClause;
30 import org.sat4j.minisat.core.Constr;
31 import org.sat4j.specs.ContradictionException;
32 import org.sat4j.specs.IVecInt;
33
34 /**
35 * @author leberre To change the template for this generated type comment go to
36 * Window - Preferences - Java - Code Generation - Code and Comments
37 */
38 public class CardinalityDataStructureYanMin extends
39 AbstractCardinalityDataStructure {
40
41 private static final long serialVersionUID = 1L;
42
43 /*
44 * (non-Javadoc)
45 *
46 * @see org.sat4j.minisat.DataStructureFactory#createClause(org.sat4j.datatype.VecInt)
47 */
48 public Constr createClause(IVecInt literals) throws ContradictionException {
49 return MinWatchCard.minWatchCardNew(solver, getVocabulary(), literals,
50 MinWatchCard.ATLEAST, 1);
51 }
52
53 public Constr createUnregisteredClause(IVecInt literals) {
54 return new LearntWLClause(literals, getVocabulary());
55 }
56
57 /*
58 * (non-Javadoc)
59 *
60 * @see org.sat4j.minisat.DataStructureFactory#createCardinalityConstraint(org.sat4j.datatype.VecInt,
61 * int)
62 */
63 @Override
64 public Constr createCardinalityConstraint(IVecInt literals, int degree)
65 throws ContradictionException {
66 return MinWatchCard.minWatchCardNew(solver, getVocabulary(), literals,
67 MinWatchCard.ATLEAST, degree);
68 }
69 }