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.foundation;
22:
23: public class ArrayIterator4 implements Iterator4 {
24:
25: Object[] _elements;
26: int _next;
27:
28: public ArrayIterator4(Object[] elements) {
29: _elements = elements;
30: _next = -1;
31: }
32:
33: public boolean moveNext() {
34: if (_next < lastIndex()) {
35: ++_next;
36: return true;
37: }
38: // force exception on unexpected call to current
39: _next = _elements.length;
40: return false;
41: }
42:
43: public Object current() {
44: return _elements[_next];
45: }
46:
47: public void reset() {
48: _next = -1;
49: }
50:
51: private int lastIndex() {
52: return _elements.length - 1;
53: }
54: }
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