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.constraints.cnf.Lits;
31 import org.sat4j.minisat.constraints.cnf.OriginalWLClause;
32 import org.sat4j.minisat.constraints.cnf.WLClause;
33 import org.sat4j.minisat.core.Constr;
34 import org.sat4j.minisat.core.ILits;
35 import org.sat4j.specs.ContradictionException;
36 import org.sat4j.specs.IVecInt;
37
38 /**
39 * @author leberre To change the template for this generated type comment go to
40 * Window - Preferences - Java - Code Generation - Code and Comments
41 */
42 public class MixedDataStructureDaniel extends AbstractDataStructureFactory<ILits> {
43
44 private static final long serialVersionUID = 1L;
45
46 /*
47 * (non-Javadoc)
48 *
49 * @see org.sat4j.minisat.DataStructureFactory#createCardinalityConstraint(org.sat4j.datatype.VecInt,
50 * int)
51 */
52 @Override
53 public Constr createCardinalityConstraint(IVecInt literals, int degree)
54 throws ContradictionException {
55 return AtLeast.atLeastNew(solver, getVocabulary(), literals, degree);
56 }
57
58 /*
59 * (non-Javadoc)
60 *
61 * @see org.sat4j.minisat.DataStructureFactory#createClause(org.sat4j.datatype.VecInt)
62 */
63 public Constr createClause(IVecInt literals) throws ContradictionException {
64 IVecInt v = WLClause.sanityCheck(literals, getVocabulary(), solver);
65 if (v == null)
66 return null;
67 return OriginalWLClause.brandNewClause(solver, getVocabulary(), v);
68 }
69
70 public Constr createUnregisteredClause(IVecInt literals) {
71 return new LearntWLClause(literals, getVocabulary());
72 }
73
74 @Override
75 protected ILits createLits() {
76 return new Lits();
77 }
78 }