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 pseudo boolean algorithms described in:
20 * A fast pseudo-Boolean constraint solver Chai, D.; Kuehlmann, A.
21 * Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on
22 * Volume 24, Issue 3, March 2005 Page(s): 305 - 317
23 *
24 * and
25 * Heidi E. Dixon, 2004. Automating Pseudo-Boolean Inference within a DPLL
26 * Framework. Ph.D. Dissertation, University of Oregon.
27 *******************************************************************************/
28 package org.sat4j.pb.constraints;
29
30 import java.math.BigInteger;
31
32 import org.sat4j.pb.constraints.pb.IDataStructurePB;
33 import org.sat4j.pb.constraints.pb.PBConstr;
34 import org.sat4j.pb.constraints.pb.PuebloMinWatchPb;
35 import org.sat4j.specs.ContradictionException;
36 import org.sat4j.specs.IVec;
37 import org.sat4j.specs.IVecInt;
38
39 /**
40 * @author leberre To change the template for this generated type comment go to
41 * Window - Preferences - Java - Code Generation - Code and Comments
42 */
43 public class PuebloPBMinDataStructure extends AbstractPBDataStructureFactory {
44
45 private static final long serialVersionUID = 1L;
46
47 /*
48 * (non-Javadoc)
49 *
50 * @see org.sat4j.minisat.constraints.AbstractPBDataStructureFactory#constraintFactory(org.sat4j.specs.VecInt,
51 * org.sat4j.specs.VecInt, boolean, int)
52 */
53 @Override
54 protected PBConstr constraintFactory(IVecInt literals, IVecInt coefs,
55 boolean moreThan, int degree) throws ContradictionException {
56 return PuebloMinWatchPb.minWatchPbNew(solver, getVocabulary(),
57 literals, coefs, moreThan, degree);
58 }
59
60 /*
61 * (non-Javadoc)
62 *
63 * @see org.sat4j.minisat.constraints.AbstractPBDataStructureFactory#constraintFactory(org.sat4j.specs.VecInt,
64 * org.sat4j.specs.VecInt, int)
65 */
66 @Override
67 protected PBConstr constraintFactory(IVecInt literals, IVecInt coefs,
68 int degree) {
69 return PuebloMinWatchPb.watchPbNew(getVocabulary(), literals, coefs,
70 true, degree);
71 }
72
73 /*
74 * (non-Javadoc)
75 *
76 * @see org.sat4j.minisat.constraints.AbstractPBDataStructureFactory#constraintFactory(org.sat4j.specs.VecInt,
77 * org.sat4j.specs.VecInt, boolean, int)
78 */
79 @Override
80 protected PBConstr constraintFactory(IVecInt literals,
81 IVec<BigInteger> coefs, boolean moreThan, BigInteger degree)
82 throws ContradictionException {
83 return PuebloMinWatchPb.minWatchPbNew(solver, getVocabulary(),
84 literals, coefs, moreThan, degree);
85 }
86
87 /*
88 * (non-Javadoc)
89 *
90 * @see org.sat4j.minisat.constraints.AbstractPBDataStructureFactory#constraintFactory(org.sat4j.specs.VecInt,
91 * org.sat4j.specs.VecInt, int)
92 */
93 @Override
94 protected PBConstr constraintFactory(IVecInt literals,
95 IVec<BigInteger> coefs, BigInteger degree) {
96 return PuebloMinWatchPb.watchPbNew(getVocabulary(), literals, coefs,
97 true, degree);
98 }
99 @Override
100 protected PBConstr constraintFactory(IDataStructurePB dspb) {
101 return PuebloMinWatchPb.normalizedWatchPbNew(getVocabulary(), dspb);
102 }
103
104
105 }