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