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. import com.sun.org.apache.xerces.internal.dom.DOMImplementationImpl;
  59. import org.w3c.dom.DOMException;
  60. import org.w3c.dom.html.HTMLDOMImplementation;
  61. import org.w3c.dom.html.HTMLDocument;
  62. /**
  63. * Provides number of methods for performing operations that are independent
  64. * of any particular instance of the document object model. This class is
  65. * unconstructable, the only way to obtain an instance of a DOM implementation
  66. * is by calling the static method {@link #getDOMImplementation}.
  67. *
  68. * @version $Revision: 1.4 $ $Date: 2003/05/08 20:13:09 $
  69. * @author <a href="mailto:arkin@exoffice.com">Assaf Arkin</a>
  70. * @see org.w3c.dom.DOMImplementation
  71. */
  72. public class HTMLDOMImplementationImpl
  73. extends DOMImplementationImpl
  74. implements HTMLDOMImplementation
  75. {
  76. /**
  77. * Holds a reference to the single instance of the DOM implementation.
  78. * Only one instance is required since this class is multiple entry.
  79. */
  80. private static HTMLDOMImplementation _instance = new HTMLDOMImplementationImpl();
  81. /**
  82. * Private constructor assures that an object of this class cannot
  83. * be created. The only way to obtain an object is by calling {@link
  84. * #getDOMImplementation}.
  85. */
  86. private HTMLDOMImplementationImpl()
  87. {
  88. }
  89. /**
  90. * Create a new HTML document of the specified <TT>TITLE</TT> text.
  91. *
  92. * @param title The document title text
  93. * @return New HTML document
  94. */
  95. public final HTMLDocument createHTMLDocument( String title )
  96. throws DOMException
  97. {
  98. HTMLDocument doc;
  99. if ( title == null )
  100. throw new NullPointerException( "HTM014 Argument 'title' is null." );
  101. doc = new HTMLDocumentImpl();
  102. doc.setTitle( title );
  103. return doc;
  104. }
  105. /**
  106. * Returns an instance of a {@link HTMLDOMImplementation} that can be
  107. * used to perform operations that are not specific to a particular
  108. * document instance, e.g. to create a new document.
  109. *
  110. * @return Reference to a valid DOM implementation
  111. */
  112. public static HTMLDOMImplementation getHTMLDOMImplementation()
  113. {
  114. return _instance;
  115. }
  116. }