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Java > Open Source Codes > com > db4o > foundation > HashtableObjectEntry


1 /* Copyright (C) 2004 - 2006 db4objects Inc. http://www.db4o.com
2
3 This file is part of the db4o open source object database.
4
5 db4o is free software; you can redistribute it and/or modify it under
6 the terms of version 2 of the GNU General Public License as published
7 by the Free Software Foundation and as clarified by db4objects' GPL
8 interpretation policy, available at
9 http://www.db4o.com/about/company/legalpolicies/gplinterpretation/
10 Alternatively you can write to db4objects, Inc., 1900 S Norfolk Street,
11 Suite 350, San Mateo, CA 94403, USA.
12
13 db4o is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
16 for more details.
17
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
21 package com.db4o.foundation;
22
23 /**
24  *
25  */
26 class HashtableObjectEntry extends HashtableIntEntry {
27
28     Object JavaDoc i_objectKey;
29
30     HashtableObjectEntry(int a_hash, Object JavaDoc a_key, Object JavaDoc a_object) {
31         super(a_hash, a_object);
32         i_objectKey = a_key;
33     }
34
35     HashtableObjectEntry(Object JavaDoc a_key, Object JavaDoc a_object) {
36         super(a_key.hashCode(), a_object);
37         i_objectKey = a_key;
38     }
39
40     protected HashtableObjectEntry() {
41         super();
42     }
43
44     public void acceptKeyVisitor(Visitor4 visitor) {
45         visitor.visit(i_objectKey);
46     }
47
48     public Object JavaDoc deepClone(Object JavaDoc obj) {
49         return deepCloneInternal(new HashtableObjectEntry(), obj);
50     }
51     
52     protected HashtableIntEntry deepCloneInternal(HashtableIntEntry entry, Object JavaDoc obj) {
53         ((HashtableObjectEntry)entry).i_objectKey = i_objectKey;
54         return super.deepCloneInternal(entry, obj);
55     }
56
57     public boolean hasKey(Object JavaDoc key) {
58         return i_objectKey.equals(key);
59     }
60
61     public boolean sameKeyAs(HashtableIntEntry other) {
62         return other instanceof HashtableObjectEntry
63             ? hasKey(((HashtableObjectEntry) other).i_objectKey)
64             : false;
65     }
66 }
67
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