1 /**
2 * Redistribution and use of this software and associated documentation
3 * ("Software"), with or without modification, are permitted provided
4 * that the following conditions are met:
5 *
6 * 1. Redistributions of source code must retain copyright
7 * statements and notices. Redistributions must also contain a
8 * copy of this document.
9 *
10 * 2. Redistributions in binary form must reproduce the
11 * above copyright notice, this list of conditions and the
12 * following disclaimer in the documentation and/or other
13 * materials provided with the distribution.
14 *
15 * 3. The name "Exolab" must not be used to endorse or promote
16 * products derived from this Software without prior written
17 * permission of Intalio, Inc. For written permission,
18 * please contact info@exolab.org.
19 *
20 * 4. Products derived from this Software may not be called "Exolab"
21 * nor may "Exolab" appear in their names without prior written
22 * permission of Intalio, Inc. Exolab is a registered
23 * trademark of Intalio, Inc.
24 *
25 * 5. Due credit should be given to the Exolab Project
26 * (http://www.exolab.org/).
27 *
28 * THIS SOFTWARE IS PROVIDED BY INTALIO, INC. AND CONTRIBUTORS
29 * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
30 * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
31 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
32 * INTALIO, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
33 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
34 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
35 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
39 * OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Copyright 1999-2003 (C) Intalio, Inc. All Rights Reserved.
42 *
43 * $Id$
44 */
45
46 package org.exolab.castor.mapping.loader;
47
48 import java.util.Vector;
49 import java.util.Hashtable;
50 import java.util.Enumeration;
51 import java.util.NoSuchElementException;
52 import org.exolab.castor.mapping.CollectionHandler;
53 import org.exolab.castor.mapping.loader.collection.handler.ArrayCollectionHandler;
54 import org.exolab.castor.mapping.loader.collection.handler.EnumerateCollectionHandler;
55 import org.exolab.castor.mapping.loader.collection.handler.HashtableCollectionHandler;
56 import org.exolab.castor.mapping.loader.collection.handler.VectorCollectionHandler;
57
58 import java.lang.reflect.*;
59
60 /**
61 * Implementation of various collection handlers for the Java 1.1 libraries.
62 *
63 * @author <a href="arkin@intalio.com">Assaf Arkin</a>
64 * @version $Revision$ $Date: 2006-04-25 15:08:23 -0600 (Tue, 25 Apr
65 * 2006) $
66 * @see CollectionHandler
67 */
68 public final class J1CollectionHandlers {
69
70 /**
71 * List of all the default collection handlers.
72 */
73 private static CollectionHandlers.Info[] _colHandlers;
74
75 static {
76 _colHandlers = new CollectionHandlers.Info[] {
77 // For array (any)
78 new CollectionHandlers.Info("array", Object[].class, true, new ArrayCollectionHandler()),
79 // For Vector (1.1)
80 new CollectionHandlers.Info("vector", Vector.class, false, new VectorCollectionHandler()),
81 // For Hashtable (1.1)
82 new CollectionHandlers.Info("hashtable", Hashtable.class, false, new HashtableCollectionHandler()),
83 // For Enumeration (1.1)
84 new CollectionHandlers.Info("enumerate", Enumeration.class, false, new EnumerateCollectionHandler())
85 };
86 }
87
88 public static CollectionHandlers.Info[] getCollectionHandlersInfo() {
89 return _colHandlers;
90 }
91
92 /**
93 * Enumerator for an array.
94 */
95 public static final class ArrayEnumerator<T> implements Enumeration<T> {
96
97 private final Object _array;
98
99 private int _index;
100
101 public ArrayEnumerator(Object array) {
102 _array = array;
103 }
104
105 public boolean hasMoreElements() {
106 return (_index < Array.getLength(_array));
107 }
108
109 @SuppressWarnings("unchecked")
110 public T nextElement() {
111 if (_index >= Array.getLength(_array))
112 throw new NoSuchElementException();
113 return (T) Array.get(_array, _index++);
114 }
115
116 }
117
118 }