01: /*
02: (c) Copyright 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
03: [see end of file]
04: $Id: GetTriple.java,v 1.8 2008/01/02 12:06:55 andy_seaborne Exp $
05: */
06: package com.hp.hpl.jena.graph;
07:
08: /**
09: 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: Answer the triple associated with the node <code>n</code>.
19: @param n the node to use as the key
20: @return the associated triple, or <code>null</code> if none
21: */
22: public Triple getTriple(Node n);
23: }
24:
25: /*
26: (c) Copyright 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
27: All rights reserved.
28:
29: Redistribution and use in source and binary forms, with or without
30: modification, are permitted provided that the following conditions
31: are met:
32:
33: 1. Redistributions of source code must retain the above copyright
34: notice, this list of conditions and the following disclaimer.
35:
36: 2. Redistributions in binary form must reproduce the above copyright
37: notice, this list of conditions and the following disclaimer in the
38: documentation and/or other materials provided with the distribution.
39:
40: 3. The name of the author may not be used to endorse or promote products
41: derived from this software without specific prior written permission.
42:
43: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
44: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
45: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
46: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
47: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
48: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
49: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
50: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
51: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
52: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
53: */
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