1 /*
2 * Copyright (c) 2007, Peter Mika All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * - Redistributions of source code must retain the above copyright notice, this
8 * list of conditions and the following disclaimer.
9 * - Redistributions in binary form must reproduce the above copyright notice,
10 * this list of conditions and the following disclaimer in the documentation
11 * and/or other materials provided with the distribution.
12 * - Neither the name of the openrdf.org nor the names of its contributors may
13 * be used to endorse or promote products derived from this software without
14 * specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29 package org.openrdf.elmo.smusher;
30
31 import org.slf4j.Logger;
32 import org.slf4j.LoggerFactory;
33
34
35 /** This smusher compares instances based on Inverse Functional Properties.
36 *
37 * As it uses a single query it works only on a single repository, not in
38 * cases when we need to smush things in different repositories.
39 *
40 * @author Peter Mika (pmika@cs.vu.nl)
41 */
42 public class IFPSmusher extends FixedQuerySmusher {
43
44 private final static String IFP_QUERY =
45 /* "SELECT DISTINCT person1, person2 FROM {prop} rdf:type {owl:InverseFunctionalProperty}, " +
46 "{person1} prop {value}, {person2} prop {value} " +
47 "WHERE person1 != person2 " +
48 "UNION " +
49 */
50 "SELECT DISTINCT person1, person2 FROM {prop} rdf:type {owl:InverseFunctionalProperty}, " +
51 "{person1} prop {value}, {person2} prop {value} " +
52 // "{person1} owl:sameAs {person1other}, {person2} owl:sameAs {person2other} " +
53 "WHERE person1 != person2 " +
54 "USING NAMESPACE " +
55 "foaf=<" + org.openrdf.model.vocabulary.FOAF.NAMESPACE + ">," +
56 "owl=<" + org.openrdf.model.vocabulary.OWL.NAMESPACE + ">";
57
58 protected final static Logger _logger = LoggerFactory.getLogger(IFPSmusher.class);
59
60 public IFPSmusher() {
61 super(IFP_QUERY);
62 }
63
64 }