01: /*
02: (c) Copyright 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP, all rights reserved.
03: [See end of file]
04: $Id: TrackingTripleIterator.java,v 1.7 2008/01/02 12:09:51 andy_seaborne Exp $
05: */
06:
07: package com.hp.hpl.jena.mem;
08:
09: import java.util.Iterator;
10:
11: import com.hp.hpl.jena.graph.*;
12: import com.hp.hpl.jena.util.iterator.WrappedIterator;
13:
14: /**
15: A WrappedIterator which remembers the last object next'ed in a
16: protected instance variable, so that subclasses have access to it
17: during .remove.
18:
19: @author kers
20: */
21: public class TrackingTripleIterator extends WrappedIterator {
22: public TrackingTripleIterator(Iterator it) {
23: super (it);
24: }
25:
26: /**
27: The remembered current triple. Subclass should *not* assign to this variable.
28: */
29: protected Triple current;
30:
31: /**
32: Answer the next object, remembering it in <code>current</code>.
33: @see java.util.Iterator#next()
34: */
35: public Object next() {
36: return current = (Triple) super .next();
37: }
38: }
39:
40: /*
41: (c) Copyright 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
42: All rights reserved.
43:
44: Redistribution and use in source and binary forms, with or without
45: modification, are permitted provided that the following conditions
46: are met:
47:
48: 1. Redistributions of source code must retain the above copyright
49: notice, this list of conditions and the following disclaimer.
50:
51: 2. Redistributions in binary form must reproduce the above copyright
52: notice, this list of conditions and the following disclaimer in the
53: documentation and/or other materials provided with the distribution.
54:
55: 3. The name of the author may not be used to endorse or promote products
56: derived from this software without specific prior written permission.
57:
58: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
59: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
60: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
61: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
62: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
63: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
64: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
65: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
66: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
67: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
68: */
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