01: /* Copyright (C) 2004 - 2007 db4objects Inc. http://www.db4o.com
02:
03: This file is part of the db4o open source object database.
04:
05: db4o is free software; you can redistribute it and/or modify it under
06: the terms of version 2 of the GNU General Public License as published
07: by the Free Software Foundation and as clarified by db4objects' GPL
08: interpretation policy, available at
09: 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.internal;
22:
23: import com.db4o.foundation.Tree;
24: import com.db4o.internal.handlers.*;
25:
26: /**
27: * @exclude
28: */
29: public class TreeString extends Tree {
30:
31: public String _key;
32:
33: public TreeString(String a_key) {
34: this ._key = a_key;
35: }
36:
37: protected Tree shallowCloneInternal(Tree tree) {
38: TreeString ts = (TreeString) super .shallowCloneInternal(tree);
39: ts._key = _key;
40: return ts;
41: }
42:
43: public Object shallowClone() {
44: return shallowCloneInternal(new TreeString(_key));
45: }
46:
47: public int compare(Tree a_to) {
48: return StringHandler.compare(Const4.stringIO
49: .write(((TreeString) a_to)._key), Const4.stringIO
50: .write(_key));
51: }
52:
53: public Object key() {
54: return _key;
55: }
56:
57: }
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