KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > sun > org > apache > html > internal > dom > HTMLDOMImplementationImpl


1 /*
2  * The Apache Software License, Version 1.1
3  *
4  *
5  * Copyright (c) 1999,2000 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
39  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
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
46  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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) 1999, 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 package com.sun.org.apache.html.internal.dom;
58     
59
60 import com.sun.org.apache.xerces.internal.dom.DOMImplementationImpl;
61 import org.w3c.dom.DOMException JavaDoc;
62 import org.w3c.dom.html.HTMLDOMImplementation;
63 import org.w3c.dom.html.HTMLDocument;
64
65
66 /**
67  * Provides number of methods for performing operations that are independent
68  * of any particular instance of the document object model. This class is
69  * unconstructable, the only way to obtain an instance of a DOM implementation
70  * is by calling the static method {@link #getDOMImplementation}.
71  *
72  * @version $Revision: 1.4 $ $Date: 2003/05/08 20:13:09 $
73  * @author <a HREF="mailto:arkin@exoffice.com">Assaf Arkin</a>
74  * @see org.w3c.dom.DOMImplementation
75  */
76 public class HTMLDOMImplementationImpl
77     extends DOMImplementationImpl
78     implements HTMLDOMImplementation
79 {
80
81
82     /**
83      * Holds a reference to the single instance of the DOM implementation.
84      * Only one instance is required since this class is multiple entry.
85      */
86     private static HTMLDOMImplementation _instance = new HTMLDOMImplementationImpl();
87
88
89     /**
90      * Private constructor assures that an object of this class cannot
91      * be created. The only way to obtain an object is by calling {@link
92      * #getDOMImplementation}.
93      */
94     private HTMLDOMImplementationImpl()
95     {
96     }
97
98
99     /**
100      * Create a new HTML document of the specified <TT>TITLE</TT> text.
101      *
102      * @param title The document title text
103      * @return New HTML document
104      */
105     public final HTMLDocument createHTMLDocument( String JavaDoc title )
106         throws DOMException JavaDoc
107     {
108     HTMLDocument doc;
109
110     if ( title == null )
111         throw new NullPointerException JavaDoc( "HTM014 Argument 'title' is null." );
112     doc = new HTMLDocumentImpl();
113     doc.setTitle( title );
114     return doc;
115     }
116
117
118     /**
119      * Returns an instance of a {@link HTMLDOMImplementation} that can be
120      * used to perform operations that are not specific to a particular
121      * document instance, e.g. to create a new document.
122      *
123      * @return Reference to a valid DOM implementation
124      */
125     public static HTMLDOMImplementation getHTMLDOMImplementation()
126     {
127     return _instance;
128     }
129
130
131 }
132
Popular Tags