01: /*
02: (c) Copyright 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
03: All rights reserved - see end of file.
04: $Id: Applyer.java,v 1.5 2008/01/02 12:07:58 andy_seaborne Exp $
05: */
06:
07: package com.hp.hpl.jena.graph.query;
08:
09: /**
10: An Applyer object will run the StageElement <code>next</code> over all the
11: extensions of the Domain <code>d</code> which are derived from applying
12: the Matcher <code>m</code> to some internal supply of triples.
13:
14: @author kers
15: */
16: public abstract class Applyer {
17: public abstract void applyToTriples(Domain d, Matcher m,
18: StageElement next);
19:
20: /**
21: An Applyer that never calls its <code>next</code> StageElement.
22: */
23: public static final Applyer empty = new Applyer() {
24: public void applyToTriples(Domain d, Matcher m,
25: StageElement next) {
26: }
27: };
28: }
29:
30: /*
31: * (c) Copyright 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
32: * All rights reserved.
33: *
34: * Redistribution and use in source and binary forms, with or without
35: * modification, are permitted provided that the following conditions
36: * are met:
37: * 1. Redistributions of source code must retain the above copyright
38: * notice, this list of conditions and the following disclaimer.
39: * 2. Redistributions in binary form must reproduce the above copyright
40: * notice, this list of conditions and the following disclaimer in the
41: * documentation and/or other materials provided with the distribution.
42: * 3. The name of the author may not be used to endorse or promote products
43: * derived from this software without specific prior written permission.
44: *
45: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
46: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
47: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
48: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
49: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
51: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
52: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
53: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
54: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55: */
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