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Java > Open Source Codes > org > dom4j > util > IndexedDocumentFactory


1 /*
2  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
3  *
4  * This software is open source.
5  * See the bottom of this file for the licence.
6  */
7
8 package org.dom4j.util;
9
10 import org.dom4j.DocumentFactory;
11 import org.dom4j.Element;
12 import org.dom4j.QName;
13
14 /**
15  * <p>
16  * <code>IndexedDocumentFactory</code> is a factory of XML objects which
17  * create indexed Element implementations to allow quicker lookup via name of
18  * Element and Attributes though at the expense of more memory used to create
19  * the name indexes.
20  * </p>
21  *
22  * @author <a HREF="mailto:jstrachan@apache.org">James Strachan </a>
23  * @version $Revision: 1.9 $
24  */
25 public class IndexedDocumentFactory extends DocumentFactory {
26     /** The Singleton instance */
27     protected static transient IndexedDocumentFactory singleton
28             = new IndexedDocumentFactory();
29
30     /**
31      * <p>
32      * Access to the singleton instance of this factory.
33      * </p>
34      *
35      * @return the default singleon instance
36      */
37     public static DocumentFactory getInstance() {
38         return singleton;
39     }
40
41     // DocumentFactory methods
42 // -------------------------------------------------------------------------
43 public Element createElement(QName qname) {
44         return new IndexedElement(qname);
45     }
46
47     public Element createElement(QName qname, int attributeCount) {
48         return new IndexedElement(qname, attributeCount);
49     }
50 }
51
52 /*
53  * Redistribution and use of this software and associated documentation
54  * ("Software"), with or without modification, are permitted provided that the
55  * following conditions are met:
56  *
57  * 1. Redistributions of source code must retain copyright statements and
58  * notices. Redistributions must also contain a copy of this document.
59  *
60  * 2. Redistributions in binary form must reproduce the above copyright notice,
61  * this list of conditions and the following disclaimer in the documentation
62  * and/or other materials provided with the distribution.
63  *
64  * 3. The name "DOM4J" must not be used to endorse or promote products derived
65  * from this Software without prior written permission of MetaStuff, Ltd. For
66  * written permission, please contact dom4j-info@metastuff.com.
67  *
68  * 4. Products derived from this Software may not be called "DOM4J" nor may
69  * "DOM4J" appear in their names without prior written permission of MetaStuff,
70  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
71  *
72  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
73  *
74  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
75  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
76  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
77  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
78  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
79  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
80  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
81  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
82  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
83  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
84  * POSSIBILITY OF SUCH DAMAGE.
85  *
86  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
87  */
88
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