1 /*******************************************************************************
2 * SAT4J: a SATisfiability library for Java Copyright (C) 2004, 2012 Artois University and CNRS
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 * Contributors:
28 * CRIL - initial API and implementation
29 *******************************************************************************/
30 package org.sat4j.minisat.constraints;
31
32 import org.sat4j.minisat.constraints.card.AtLeast;
33 import org.sat4j.minisat.constraints.cnf.LearntWLClause;
34 import org.sat4j.minisat.core.Constr;
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 CardinalityDataStructure extends AbstractCardinalityDataStructure {
43
44 private static final long serialVersionUID = 1L;
45
46 public Constr createUnregisteredClause(IVecInt literals) {
47 return new LearntWLClause(literals, getVocabulary());
48 }
49
50 /*
51 * (non-Javadoc)
52 *
53 * @see
54 * org.sat4j.minisat.DataStructureFactory#createClause(org.sat4j.datatype
55 * .VecInt)
56 */
57 public Constr createClause(IVecInt literals) throws ContradictionException {
58 return AtLeast.atLeastNew(this.solver, getVocabulary(), literals, 1);
59 }
60
61 /*
62 * (non-Javadoc)
63 *
64 * @see
65 * org.sat4j.minisat.DataStructureFactory#createCardinalityConstraint(org
66 * .sat4j.datatype.VecInt, int)
67 */
68 @Override
69 public Constr createCardinalityConstraint(IVecInt literals, int degree)
70 throws ContradictionException {
71 return AtLeast.atLeastNew(this.solver, getVocabulary(), literals,
72 degree);
73 }
74
75 public Constr createUnregisteredCardinalityConstraint(IVecInt literals,
76 int degree) {
77 return new AtLeast(getVocabulary(), literals, degree);
78 }
79
80 }