01: /*
02: (c) Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
03: [See end of file]
04: $Id: MapFilter.java,v 1.8 2008/01/02 12:07:35 andy_seaborne Exp $
05: */
06:
07: package com.hp.hpl.jena.util.iterator;
08:
09: /**
10: Combines the actions of <code>Map</code> and <code>Filter</code>, mapping
11: unacceptable objects to <code>null</code> and acceptable ones to their mapped
12: value.
13: @author kers
14: */
15: public interface MapFilter {
16: /**
17: a compiled filter and test - returns null if x is unacceptable, and
18: the mapped value if x is acceptable; clearly useless if the mapping
19: might deliver null. Tough.
20: */
21: public Object accept(Object x);
22: }
23:
24: /*
25: (c) Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
26: All rights reserved.
27:
28: Redistribution and use in source and binary forms, with or without
29: modification, are permitted provided that the following conditions
30: are met:
31:
32: 1. Redistributions of source code must retain the above copyright
33: notice, this list of conditions and the following disclaimer.
34:
35: 2. Redistributions in binary form must reproduce the above copyright
36: notice, this list of conditions and the following disclaimer in the
37: documentation and/or other materials provided with the distribution.
38:
39: 3. The name of the author may not be used to endorse or promote products
40: derived from this software without specific prior written permission.
41:
42: THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
43: IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
44: OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
45: IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
46: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
47: NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
48: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
49: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
50: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
51: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
52: */
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