/* * Copyright 1999-2002,2004 The Apache Software Foundation. *  * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at *  *      http://www.apache.org/licenses/LICENSE-2.0 *  * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *//* * $Id: DOM_Comment.hpp,v 1.5 2004/09/08 13:55:42 peiyongz Exp $ */#ifndef DOM_Comment_HEADER_GUARD_#define DOM_Comment_HEADER_GUARD_#include <xercesc/util/XercesDefs.hpp>#include "DOM_CharacterData.hpp"XERCES_CPP_NAMESPACE_BEGINclass CommentImpl;/** * Class to refer to XML comment nodes in the DOM. * * <P>The string value contains all of the characters between * the starting '<code>&lt;!--</code>' and ending '<code>--&gt;</code>'. */class DEPRECATED_DOM_EXPORT DOM_Comment: public DOM_CharacterData {public:  /** @name Constructors and assignment operators */  //@{  /**    * Default constructor for DOM_Comment.  The resulting object does not    * refer to an actual Comment node; it will compare == to 0, and is similar    * to a null object reference variable in Java.  It may subsequently be    * assigned to refer to an actual comment node.    * <p>    * New comment nodes are created by DOM_Document::createComment().    *    */    DOM_Comment();  /**    * Copy constructor.   Creates a new <code>DOM_Comment</code> that refers to the    * same underlying node as the original.  See also DOM_Node::clone(),    * which will copy the actual Comment node, rather than just creating a new    * reference to the original node.    *    * @param other The object to be copied.    */    DOM_Comment(const DOM_Comment &other);  /**    * Assignment operator.    *    * @param other The object to be copied.    */    DOM_Comment & operator = (const DOM_Comment &other);    /**      * Assignment operator.  This overloaded variant is provided for      *   the sole purpose of setting a DOM_Node reference variable to      *   zero.  Nulling out a reference variable in this way will decrement      *   the reference count on the underlying Node object that the variable      *   formerly referenced.  This effect is normally obtained when reference      *   variable goes out of scope, but zeroing them can be useful for      *   global instances, or for local instances that will remain in scope      *   for an extended time,  when the storage belonging to the underlying      *   node needs to be reclaimed.      *      * @param val   Only a value of 0, or null, is allowed.      */    DOM_Comment & operator = (const DOM_NullPtr *val);    //@}    /** @name Destructor. */    //@{	 /**	  * Destructor for DOM_Comment.  The object being destroyed is the reference      * object, not the underlying Comment node itself.      *	  */    ~DOM_Comment();    //@}protected:    DOM_Comment(CommentImpl *comment);    friend class DOM_Document;};XERCES_CPP_NAMESPACE_END#endif