01: /*
02: (c) Copyright 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP, all rights reserved.
03: [See end of file]
04: $Id: RegexpTree.java,v 1.9 2008/01/02 12:06:04 andy_seaborne Exp $
05: */
06: package com.hp.hpl.jena.graph.query.regexptrees;
07:
08: /**
09: RegexpTree - the abstract base class for trees representing regular
10: expressions, used to communicate between query languages and query
11: back ends that need to do interesting compiling.
12:
13: @author kers
14: */
15:
16: public abstract class RegexpTree {
17: public static final RegexpTree EOL = new EndOfLine();
18:
19: public static final RegexpTree SOL = new StartOfLine();
20:
21: public static final RegexpTree ANY = new AnySingle();
22:
23: public static final RegexpTree NON = new Nothing();
24:
25: public abstract boolean equals(Object other);
26:
27: public abstract int hashCode();
28:
29: public abstract String toString();
30: }
31:
32: /*
33: (c) Copyright 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
34: All rights reserved.
35:
36: Redistribution and use in source and binary forms, with or without
37: modification, are permitted provided that the following conditions
38: are met:
39:
40: 1. Redistributions of source code must retain the above copyright
41: notice, this list of conditions and the following disclaimer.
42:
43: 2. Redistributions in binary form must reproduce the above copyright
44: notice, this list of conditions and the following disclaimer in the
45: documentation and/or other materials provided with the distribution.
46:
47: 3. The name of the author may not be used to endorse or promote products
48: derived from this software without specific prior written permission.
49:
50: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
51: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
52: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
53: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
54: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
55: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
56: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
57: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
59: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60: */
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