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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 }