1 /*******************************************************************************
2 * SAT4J: a SATisfiability library for Java Copyright (C) 2004-2008 Daniel Le Berre
3 *
4 * All rights reserved. This program and the accompanying materials
5 * are made available under the terms of the Eclipse Public License v1.0
6 * which accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
8 *
9 * Alternatively, the contents of this file may be used under the terms of
10 * either the GNU Lesser General Public License Version 2.1 or later (the
11 * "LGPL"), in which case the provisions of the LGPL are applicable instead
12 * of those above. If you wish to allow use of your version of this file only
13 * under the terms of the LGPL, and not to allow others to use your version of
14 * this file under the terms of the EPL, indicate your decision by deleting
15 * the provisions above and replace them with the notice and other provisions
16 * required by the LGPL. If you do not delete the provisions above, a recipient
17 * may use your version of this file under the terms of the EPL or the LGPL.
18 *
19 * Based on the original MiniSat specification from:
20 *
21 * An extensible SAT solver. Niklas Een and Niklas Sorensson. Proceedings of the
22 * Sixth International Conference on Theory and Applications of Satisfiability
23 * Testing, LNCS 2919, pp 502-518, 2003.
24 *
25 * See www.minisat.se for the original solver in C++.
26 *
27 *******************************************************************************/
28 package org.sat4j.minisat.constraints;
29
30 import org.sat4j.minisat.constraints.card.MaxWatchCard;
31 import org.sat4j.minisat.constraints.card.MinWatchCard;
32 import org.sat4j.minisat.constraints.cnf.LearntWLClause;
33 import org.sat4j.minisat.core.Constr;
34 import org.sat4j.specs.ContradictionException;
35 import org.sat4j.specs.IVecInt;
36
37 /**
38 * @author leberre To change the template for this generated type comment go to
39 * Window - Preferences - Java - Code Generation - Code and Comments
40 */
41 public class CardinalityDataStructureYanMax extends
42 AbstractCardinalityDataStructure {
43
44 private static final long serialVersionUID = 1L;
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 MaxWatchCard.maxWatchCardNew(solver, getVocabulary(), literals,
53 MinWatchCard.ATLEAST, 1);
54 }
55
56 public Constr createUnregisteredClause(IVecInt literals) {
57 return new LearntWLClause(literals, getVocabulary());
58 }
59
60 /*
61 * (non-Javadoc)
62 *
63 * @see org.sat4j.minisat.DataStructureFactory#createCardinalityConstraint(org.sat4j.datatype.VecInt,
64 * int)
65 */
66 @Override
67 public Constr createCardinalityConstraint(IVecInt literals, int degree)
68 throws ContradictionException {
69 return MaxWatchCard.maxWatchCardNew(solver, getVocabulary(), literals,
70 MinWatchCard.ATLEAST, degree);
71 }
72
73 }