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Java > Open Source Codes > com > sun > org > apache > xerces > internal > impl > xs > util > NSItemListImpl


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 2002 The Apache Software Foundation. All rights
6  * reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  * notice, this list of conditions and the following disclaimer.
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  * notice, this list of conditions and the following disclaimer in
17  * the documentation and/or other materials provided with the
18  * distribution.
19  *
20  * 3. The end-user documentation included with the redistribution,
21  * if any, must include the following acknowledgment:
22  * "This product includes software developed by the
23  * Apache Software Foundation (http://www.apache.org/)."
24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
26  *
27  * 4. The names "Xerces" and "Apache Software Foundation" must
28  * not be used to endorse or promote products derived from this
29  * software without prior written permission. For written
30  * permission, please contact apache@apache.org.
31  *
32  * 5. Products derived from this software may not be called "Apache",
33  * nor may "Apache" appear in their name, without prior written
34  * permission of the Apache Software Foundation.
35  *
36  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
37  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
38  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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40  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
42  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
43  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
44  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
45  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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47  * SUCH DAMAGE.
48  * ====================================================================
49  *
50  * This software consists of voluntary contributions made by many
51  * individuals on behalf of the Apache Software Foundation and was
52  * originally based on software copyright (c) 2002, International
53  * Business Machines, Inc., http://www.apache.org. For more
54  * information on the Apache Software Foundation, please see
55  * <http://www.apache.org/>.
56  */
57
58 package com.sun.org.apache.xerces.internal.impl.xs.util;
59
60 import java.util.Vector JavaDoc;
61
62 import com.sun.org.apache.xerces.internal.xs.XSNamespaceItem;
63 import com.sun.org.apache.xerces.internal.xs.XSNamespaceItemList;
64 /**
65  * Containts a list of Object's.
66  *
67  * @author Sandy Gao, IBM
68  *
69  * @version $Id: NSItemListImpl.java,v 1.3 2003/11/11 20:15:00 sandygao Exp $
70  */
71 public class NSItemListImpl implements XSNamespaceItemList {
72
73     // The array to hold all data
74 private XSNamespaceItem[] fArray = null;
75     // Number of elements in this list
76 private int fLength = 0;
77
78     // REVISIT: this is temp solution. In general we need to use this class
79 // instead of the Vector.
80 private Vector JavaDoc fVector;
81
82     public NSItemListImpl(Vector JavaDoc v) {
83         fVector = v;
84         fLength = v.size();
85     }
86
87     /**
88      * Construct an XSNamespaceItemList implementation
89      *
90      * @param array the data array
91      * @param length the number of elements
92      */
93     public NSItemListImpl(XSNamespaceItem[] array, int length) {
94         fArray = array;
95         fLength = length;
96     }
97
98     /**
99      * The number of <code>Objects</code> in the list. The range of valid
100      * child node indices is 0 to <code>length-1</code> inclusive.
101      */
102     public int getLength() {
103         return fLength;
104     }
105
106     public XSNamespaceItem item(int index) {
107         if (index < 0 || index >= fLength)
108             return null;
109         if (fVector != null) {
110             return (XSNamespaceItem)fVector.elementAt(index);
111         }
112         return fArray[index];
113     }
114
115 } // class XSParticle
116
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