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Java > Open Source Codes > bak > pcj > hash > DefaultShortHashFunction


1 /*
2  * Primitive Collections for Java.
3  * Copyright (C) 2002, 2003 Søren Bak
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this library; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18  */
19 package bak.pcj.hash;
20
21 import java.io.Serializable JavaDoc;
22
23 /**
24  * This class provides a default hash function for
25  * short values. It has been derived from the Java library and
26  * is known to work well in the general case.
27  *
28  * @serial exclude
29  * @author Søren Bak
30  * @version 1.2 2003/5/3
31  * @since 1.0
32  */
33 public class DefaultShortHashFunction implements ShortHashFunction, Serializable JavaDoc {
34
35     /** Default instance of this hash function. */
36     public static final ShortHashFunction INSTANCE = new DefaultShortHashFunction();
37
38     /** Default constructor to be invoked by sub-classes. */
39     protected DefaultShortHashFunction() { }
40
41     public int hash(short v) {
42         return (int)v;
43     }
44
45 }
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