content: /*
   * Copyright (c) 2004 World Wide Web Consortium,
   *
   * (Massachusetts Institute of Technology, European Research Consortium for
   * Informatics and Mathematics, Keio University). All Rights Reserved. This
   * work is distributed under the W3C(r) Software License [1] in the hope that
   * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
   * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   *
   * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
   */
  
  package mf.org.w3c.dom;
  
  /**
   * The <code>DOMImplementation</code> interface provides a number of methods
   * for performing operations that are independent of any particular instance
   * of the document object model.
   * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>.
   */
  public interface DOMImplementation {
      /**
       * Test if the DOM implementation implements a specific feature and
       * version, as specified in .
       *
       * @param feature The name of the feature to test.
       * @param version This is the version number of the feature to test.
       * @return <code>true</code> if the feature is implemented in the
       * specified version, <code>false</code> otherwise.
       */
      boolean hasFeature(String feature,
                         String version);
  
      /**
       * Creates an empty <code>DocumentType</code> node. Entity declarations
       * and notations are not made available. Entity reference expansions and
       * default attribute additions do not occur..
       *
       * @param qualifiedName The qualified name of the document type to be
       *                      created.
       * @param publicId      The external subset public identifier.
       * @param systemId      The external subset system identifier.
       * @return A new <code>DocumentType</code> node with
       * <code>Node.ownerDocument</code> set to <code>null</code>.
       * @throws DOMException INVALID_CHARACTER_ERR: Raised if the specified qualified name is not
       *                      an XML name according to [<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>].
       *                      <br>NAMESPACE_ERR: Raised if the <code>qualifiedName</code> is
       *                      malformed.
       *                      <br>NOT_SUPPORTED_ERR: May be raised if the implementation does not
       *                      support the feature "XML" and the language exposed through the
       *                      Document does not support XML Namespaces (such as [<a href='http://www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
       * @since DOM Level 2
       */
      DocumentType createDocumentType(String qualifiedName,
                                      String publicId,
                                      String systemId)
              throws DOMException;
  
      /**
       * Creates a DOM Document object of the specified type with its document
       * element.
       * <br>Note that based on the <code>DocumentType</code> given to create
       * the document, the implementation may instantiate specialized
       * <code>Document</code> objects that support additional features than
       * the "Core", such as "HTML" [<a href='http://www.w3.org/TR/2003/REC-DOM-Level-2-HTML-20030109'>DOM Level 2 HTML</a>]
       * . On the other hand, setting the <code>DocumentType</code> after the
       * document was created makes this very unlikely to happen.
       * Alternatively, specialized <code>Document</code> creation methods,
       * such as <code>createHTMLDocument</code> [<a href='http://www.w3.org/TR/2003/REC-DOM-Level-2-HTML-20030109'>DOM Level 2 HTML</a>]
       * , can be used to obtain specific types of <code>Document</code>
       * objects.
       *
       * @param namespaceURI  The namespace URI of the document element to
       *                      create or <code>null</code>.
       * @param qualifiedName The qualified name of the document element to be
       *                      created or <code>null</code>.
       * @param doctype       The type of document to be created or <code>null</code>.
       *                      When <code>doctype</code> is not <code>null</code>, its
       *                      <code>Node.ownerDocument</code> attribute is set to the document
       *                      being created.
       * @return A new <code>Document</code> object with its document element.
       * If the <code>NamespaceURI</code>, <code>qualifiedName</code>, and
       * <code>doctype</code> are <code>null</code>, the returned
       * <code>Document</code> is empty with no document element.
       * @throws DOMException INVALID_CHARACTER_ERR: Raised if the specified qualified name is not
       *                      an XML name according to [<a href='http://www.w3.org/TR/2004/REC-xml-20040204'>XML 1.0</a>].
       *                      <br>NAMESPACE_ERR: Raised if the <code>qualifiedName</code> is
       *                      malformed, if the <code>qualifiedName</code> has a prefix and the
       *                      <code>namespaceURI</code> is <code>null</code>, or if the
       *                      <code>qualifiedName</code> is <code>null</code> and the
       *                      <code>namespaceURI</code> is different from <code>null</code>, or
       *                      if the <code>qualifiedName</code> has a prefix that is "xml" and
       *                      the <code>namespaceURI</code> is different from "<a href='http://www.w3.org/XML/1998/namespace'>
       *                      http://www.w3.org/XML/1998/namespace</a>" [<a href='http://www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>]
       *                      , or if the DOM implementation does not support the
       *                      <code>"XML"</code> feature but a non-null namespace URI was
       *                      provided, since namespaces were defined by XML.
       *                      <br>WRONG_DOCUMENT_ERR: Raised if <code>doctype</code> has already
       *                      been used with a different document or was created from a different
       *                      implementation.
       *                      <br>NOT_SUPPORTED_ERR: May be raised if the implementation does not
       *                      support the feature "XML" and the language exposed through the
       *                      Document does not support XML Namespaces (such as [<a href='http://www.w3.org/TR/1999/REC-html401-19991224/'>HTML 4.01</a>]).
       * @since DOM Level 2
       */
      Document createDocument(String namespaceURI,
                              String qualifiedName,
                              DocumentType doctype)
              throws DOMException;
  
      /**
       * This method returns a specialized object which implements the
       * specialized APIs of the specified feature and version, as specified
       * in . The specialized object may also be obtained by using
       * binding-specific casting methods but is not necessarily expected to,
       * as discussed in . This method also allow the implementation to
       * provide specialized objects which do not support the
       * <code>DOMImplementation</code> interface.
       *
       * @param feature The name of the feature requested. Note that any plus
       *                sign "+" prepended to the name of the feature will be ignored since
       *                it is not significant in the context of this method.
       * @param version This is the version number of the feature to test.
       * @return Returns an object which implements the specialized APIs of
       * the specified feature and version, if any, or <code>null</code> if
       * there is no object which implements interfaces associated with that
       * feature. If the <code>DOMObject</code> returned by this method
       * implements the <code>DOMImplementation</code> interface, it must
       * delegate to the primary core <code>DOMImplementation</code> and not
       * return results inconsistent with the primary core
       * <code>DOMImplementation</code> such as <code>hasFeature</code>,
       * <code>getFeature</code>, etc.
       * @since DOM Level 3
       */
      Object getFeature(String feature,
                        String version);
  
  }
  