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Java > Open Source Codes > com > hp > hpl > jena > reasoner > rulesys > ClauseEntry


1 /******************************************************************
2  * File: ClauseEntry.java
3  * Created by: Dave Reynolds
4  * Created on: 31-May-2003
5  *
6  * (c) Copyright 2003, 2004, 2005 Hewlett-Packard Development Company, LP
7  * [See end of file]
8  * $Id: ClauseEntry.java,v 1.6 2005/02/21 12:16:57 andy_seaborne Exp $
9  *****************************************************************/
10 package com.hp.hpl.jena.reasoner.rulesys;
11
12 /**
13  * Common interface for all objects that can go into rules.
14  * Strictly these should probably be called terms rather than clause entries.
15  *
16  * @author <a HREF="mailto:der@hplb.hpl.hp.com">Dave Reynolds</a>
17  * @version $Revision: 1.6 $ on $Date: 2005/02/21 12:16:57 $
18  */
19 public interface ClauseEntry {
20     
21     /**
22      * Compare clause entries, taking into account variable indices.
23      * The equality function ignores differences between variables.
24      */
25     public boolean sameAs(Object JavaDoc o);
26
27 }
28
29
30
31 /*
32     (c) Copyright 2003, 2004, 2005 Hewlett-Packard Development Company, LP
33     All rights reserved.
34
35     Redistribution and use in source and binary forms, with or without
36     modification, are permitted provided that the following conditions
37     are met:
38
39     1. Redistributions of source code must retain the above copyright
40        notice, this list of conditions and the following disclaimer.
41
42     2. Redistributions in binary form must reproduce the above copyright
43        notice, this list of conditions and the following disclaimer in the
44        documentation and/or other materials provided with the distribution.
45
46     3. The name of the author may not be used to endorse or promote products
47        derived from this software without specific prior written permission.
48
49     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
50     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
51     OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
52     IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
53     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
54     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
55     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
56     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
57     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
58     THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
59 */
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