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1   /*
2    * Copyright 2001-2004 (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    * $Id: NonLazyDocumentFactory.java,v 1.7 2004/06/25 08:03:41 maartenc Exp $
8    */
9   
10  package org.dom4j.util;
11  
12  import org.dom4j.DocumentFactory;
13  import org.dom4j.Element;
14  import org.dom4j.QName;
15  
16  /*** <p><code>NonLazyDocumentFactory</code> is a factory of XML objects which 
17    * avoid using the lazy creation pattern. This results in a slower
18    * creation of a Document and uses more memory but it means that the
19    * same Document instance can be shared across threads provided it is not
20    * modified.</p>
21    *
22    * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
23    * @version $Revision: 1.7 $
24    */
25  public class NonLazyDocumentFactory extends DocumentFactory {
26      
27      /*** The Singleton instance */
28      static transient NonLazyDocumentFactory singleton = new NonLazyDocumentFactory();
29      
30      
31      /*** <p>Access to the singleton instance of this factory.</p>
32        *
33        * @return the default singleon instance
34        */
35      public static DocumentFactory getInstance() {
36          return singleton;
37      }
38      
39          
40      // DocumentFactory methods
41      //-------------------------------------------------------------------------
42      
43      public Element createElement(QName qname) {
44          return new NonLazyElement(qname);
45      }
46  }
47  
48  
49  
50  
51  /*
52   * Redistribution and use of this software and associated documentation
53   * ("Software"), with or without modification, are permitted provided
54   * that the following conditions are met:
55   *
56   * 1. Redistributions of source code must retain copyright
57   *    statements and notices.  Redistributions must also contain a
58   *    copy of this document.
59   *
60   * 2. Redistributions in binary form must reproduce the
61   *    above copyright notice, this list of conditions and the
62   *    following disclaimer in the documentation and/or other
63   *    materials provided with the distribution.
64   *
65   * 3. The name "DOM4J" must not be used to endorse or promote
66   *    products derived from this Software without prior written
67   *    permission of MetaStuff, Ltd.  For written permission,
68   *    please contact dom4j-info@metastuff.com.
69   *
70   * 4. Products derived from this Software may not be called "DOM4J"
71   *    nor may "DOM4J" appear in their names without prior written
72   *    permission of MetaStuff, Ltd. DOM4J is a registered
73   *    trademark of MetaStuff, Ltd.
74   *
75   * 5. Due credit should be given to the DOM4J Project - 
76   *    http://www.dom4j.org
77   *
78   * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS
79   * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
80   * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
81   * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
82   * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
83   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
84   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
85   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
86   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
87   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
88   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
89   * OF THE POSSIBILITY OF SUCH DAMAGE.
90   *
91   * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved.
92   *
93   * $Id: NonLazyDocumentFactory.java,v 1.7 2004/06/25 08:03:41 maartenc Exp $
94   */