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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.cnf;
29  
30  import org.sat4j.minisat.core.ILits;
31  import org.sat4j.minisat.core.UnitPropagationListener;
32  import org.sat4j.specs.IVecInt;
33  
34  /**
35   * Counter Based clauses that can be mixed with WLCLauses
36   * 
37   * @author leberre
38   */
39  public class MixableCBClause extends CBClause {
40  
41      /**
42       * Commentaire pour <code>serialVersionUID</code>
43       */
44      private static final long serialVersionUID = 1L;
45  
46      /**
47       * @param ps
48       * @param voc
49       */
50      public MixableCBClause(IVecInt ps, ILits voc) {
51          super(ps, voc);
52          // TODO Raccord de constructeur auto-genere
53      }
54  
55      /*
56       * (non-Javadoc)
57       * 
58       * @see org.sat4j.minisat.core.Propagatable#propagate(org.sat4j.minisat.core.UnitPropagationListener,
59       *      int)
60       */
61      @Override
62      public boolean propagate(UnitPropagationListener s, int p) {
63          voc.watch(p, this);
64          return super.propagate(s, p);
65      }
66  
67      /**
68       * @param ps
69       * @param voc
70       * @param learnt
71       */
72      public MixableCBClause(IVecInt ps, ILits voc, boolean learnt) {
73          super(ps, voc, learnt);
74          // TODO Raccord de constructeur auto-genere
75      }
76  
77      public static CBClause brandNewClause(UnitPropagationListener s, ILits voc,
78              IVecInt literals) {
79          CBClause c = new MixableCBClause(literals, voc);
80          c.register();
81          return c;
82      }
83  }