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Java > Open Source Codes > com > hp > hpl > jena > util > iterator > MapFilter


1 /*
2   (c) Copyright 2002, 2003, 2004, 2005 Hewlett-Packard Development Company, LP
3   [See end of file]
4   $Id: MapFilter.java,v 1.5 2005/02/21 12:19:16 andy_seaborne Exp $
5 */

6
7 package com.hp.hpl.jena.util.iterator;
8
9 /**
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     /**
18         a compiled filter and test - returns null if x is unacceptable, and
19         the mapped value if x is acceptable; clearly useless if the mapping
20         might deliver null. Tough.
21     */

22     public Object JavaDoc accept( Object JavaDoc x );
23     }
24
25 /*
26     (c) Copyright 2002, 2003, 2004, 2005 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 */

54
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