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 java.math.BigInteger;
29
30 import org.sat4j.minisat.constraints.pb.MaxWatchPb;
31 import org.sat4j.minisat.constraints.pb.WatchPb;
32 import org.sat4j.specs.ContradictionException;
33 import org.sat4j.specs.IVec;
34 import org.sat4j.specs.IVecInt;
35
36 /**
37 * @author leberre To change the template for this generated type comment go to
38 * Window - Preferences - Java - Code Generation - Code and Comments
39 */
40 public class PBMaxDataStructure extends AbstractPBDataStructureFactory {
41
42 private static final long serialVersionUID = 1L;
43
44 /**
45 * @param literals
46 * @param coefs
47 * @param moreThan
48 * @param degree
49 * @return a counter-based PB constraint.
50 * @throws ContradictionException
51 */
52 @Override
53 protected WatchPb constraintFactory(IVecInt literals, IVecInt coefs,
54 boolean moreThan, int degree) throws ContradictionException {
55 return MaxWatchPb.maxWatchPbNew(solver, getVocabulary(), literals,
56 coefs, moreThan, degree);
57 }
58
59 /**
60 * @param literals
61 * @param coefs
62 * @param degree
63 * @return a counter-based PB constraint.
64 */
65 @Override
66 protected WatchPb constraintFactory(IVecInt literals, IVecInt coefs,
67 int degree) {
68 return MaxWatchPb.watchPbNew(getVocabulary(), literals, coefs, true,
69 degree);
70 }
71
72 /**
73 * @param literals
74 * @param coefs
75 * @param moreThan
76 * @param degree
77 * @return a counter-based PB constraint.
78 * @throws ContradictionException
79 */
80 @Override
81 protected WatchPb constraintFactory(IVecInt literals,
82 IVec<BigInteger> coefs, boolean moreThan, BigInteger degree)
83 throws ContradictionException {
84 return MaxWatchPb.maxWatchPbNew(solver, getVocabulary(), literals,
85 coefs, moreThan, degree);
86 }
87
88 /**
89 * @param literals
90 * @param coefs
91 * @param degree
92 * @return a counter-based PB constraint.
93 */
94 @Override
95 protected WatchPb constraintFactory(IVecInt literals,
96 IVec<BigInteger> coefs, BigInteger degree) {
97 return MaxWatchPb.watchPbNew(getVocabulary(), literals, coefs, true,
98 degree);
99 }
100
101 }