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Java > Open Source Codes > com > maverick > crypto > asn1 > ASN1Null


1 /*
2  * SSL-Explorer
3  *
4  * Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License
8  * as published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  * This program 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
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18  */
19             
20 package com.maverick.crypto.asn1;
21
22 import java.io.IOException JavaDoc;
23
24 /**
25  * A NULL object.
26  */
27 public abstract class ASN1Null
28     extends DERObject
29 {
30     public ASN1Null()
31     {
32     }
33
34     public int hashCode()
35     {
36         return 0;
37     }
38
39     public boolean equals(
40         Object JavaDoc o)
41     {
42         if ((o == null) || !(o instanceof ASN1Null))
43         {
44             return false;
45         }
46
47         return true;
48     }
49
50     abstract void encode(DEROutputStream out)
51         throws IOException JavaDoc;
52 }
53
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