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Java > Open Source Codes > com > hp > hpl > jena > graph > GetTriple


1 /*
2     (c) Copyright 2003, 2004, 2005 Hewlett-Packard Development Company, LP
3     [see end of file]
4     $Id: GetTriple.java,v 1.5 2005/02/21 11:51:56 andy_seaborne Exp $
5 */
6 package com.hp.hpl.jena.graph;
7
8 /**
9     this interface describes types that can have a triple extracted using
10     a <code>getTriple</code> method. It was constructed so that Node's
11     can have possibly embedded triples but defer to a GetTriple object if
12     they have no triple of their own; the particular GetTriple used initially is
13     in Reifier, but that seemed excessively special.
14 */
15
16 public interface GetTriple
17     {
18     /**
19         Answer the triple associated with the node <code>n</code>.
20         @param n the node to use as the key
21         @return the associated triple, or <code>null</code> if none
22     */
23     public Triple getTriple( Node n );
24     }
25
26 /*
27     (c) Copyright 2003, 2004, 2005 Hewlett-Packard Development Company, LP
28     All rights reserved.
29
30     Redistribution and use in source and binary forms, with or without
31     modification, are permitted provided that the following conditions
32     are met:
33
34     1. Redistributions of source code must retain the above copyright
35        notice, this list of conditions and the following disclaimer.
36
37     2. Redistributions in binary form must reproduce the above copyright
38        notice, this list of conditions and the following disclaimer in the
39        documentation and/or other materials provided with the distribution.
40
41     3. The name of the author may not be used to endorse or promote products
42        derived from this software without specific prior written permission.
43
44     THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
45     IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
46     OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
47     IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
48     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
49     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
50     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
51     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
52     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
53     THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
54 */
55
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