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.AtLeast;
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 CardinalityDataStructure extends AbstractCardinalityDataStructure {
39
40 private static final long serialVersionUID = 1L;
41
42 public Constr createUnregisteredClause(IVecInt literals) {
43 return new LearntWLClause(literals, getVocabulary());
44 }
45
46 /*
47 * (non-Javadoc)
48 *
49 * @see org.sat4j.minisat.DataStructureFactory#createClause(org.sat4j.datatype.VecInt)
50 */
51 public Constr createClause(IVecInt literals) throws ContradictionException {
52 return AtLeast.atLeastNew(solver, getVocabulary(), literals, 1);
53 }
54
55 /*
56 * (non-Javadoc)
57 *
58 * @see org.sat4j.minisat.DataStructureFactory#createCardinalityConstraint(org.sat4j.datatype.VecInt,
59 * int)
60 */
61 @Override
62 public Constr createCardinalityConstraint(IVecInt literals, int degree)
63 throws ContradictionException {
64 return AtLeast.atLeastNew(solver, getVocabulary(), literals, degree);
65 }
66
67 }