01: /*
02: * (c) Copyright 2000-2003, 2004, 2005, 2006, 2007, 2008 Hewlett-Packard Development Company, LP
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions
07: * are met:
08: * 1. Redistributions of source code must retain the above copyright
09: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. The name of the author may not be used to endorse or promote products
14: * derived from this software without specific prior written permission.
15:
16: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17: * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18: * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19: * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21: * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22: * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23: * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24: * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25: * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26: *
27: * $Id: ArrayIterator.java,v 1.7 2008/01/02 12:07:36 andy_seaborne Exp $
28: *
29: */
30: //ArrayIterator.java
31: package com.hp.hpl.jena.util.iterator;
32:
33: import java.util.Iterator;
34: import java.lang.reflect.Array;
35: import java.util.NoSuchElementException;
36:
37: /** An Iterator for arrays.
38: * @author Jeremy Carroll
39: * @version Release='$Name: $' Revision='$Revision: 1.7 $' Date='$Date: 2008/01/02 12:07:36 $'
40: */
41: public class ArrayIterator implements Iterator {
42: private int i;
43: private Object a;
44:
45: /** Constructs an iterator over the members of an array.
46: * All arrays are supported including primitive types.
47: * @param array Must be an array.
48: */
49: public ArrayIterator(Object array) {
50: i = 0;
51: a = array;
52: if (!a.getClass().isArray())
53: throw new ArrayStoreException();
54: }
55:
56: public boolean hasNext() {
57: return i < Array.getLength(a);
58: }
59:
60: public Object next() throws NoSuchElementException {
61: try {
62: return Array.get(a, i++);
63: } catch (IndexOutOfBoundsException e) {
64: throw new NoSuchElementException();
65: }
66: }
67:
68: /** Not supported.
69: * @throws java.lang.UnsupportedOperationException Always.
70: *
71: */
72: public void remove() {
73:
74: throw new UnsupportedOperationException();
75: }
76: }
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