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Java > Open Source Codes > com > mchange > v1 > identicator > StrongIdHashKey


1 /*
2  * Distributed as part of c3p0 v.0.9.1
3  *
4  * Copyright (C) 2005 Machinery For Change, Inc.
5  *
6  * Author: Steve Waldman <swaldman@mchange.com>
7  *
8  * This library is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU Lesser General Public License version 2.1, as
10  * published by the Free Software Foundation.
11  *
12  * This software is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public License
18  * along with this software; see the file LICENSE. If not, write to the
19  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20  * Boston, MA 02111-1307, USA.
21  */

22
23
24 package com.mchange.v1.identicator;
25
26 // revisit equals() if ever made non-final
27

28 final class StrongIdHashKey extends IdHashKey
29 {
30     Object JavaDoc keyObj;
31     
32     public StrongIdHashKey(Object JavaDoc keyObj, Identicator id)
33     {
34     super( id );
35     this.keyObj = keyObj;
36     }
37
38     public Object JavaDoc getKeyObj()
39     { return keyObj; }
40
41     public boolean equals(Object JavaDoc o)
42     {
43     // fast type-exact match for final class
44
if (o instanceof StrongIdHashKey)
45         return id.identical( keyObj, ((StrongIdHashKey) o).keyObj );
46     else
47         return false;
48     }
49
50     public int hashCode()
51     { return id.hash( keyObj ); }
52 }
53
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