/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You 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 568078 2007-08-21 11:43:25Z amassari $

 */

#ifndef DOM_Comment_HEADER_GUARD_

#define DOM_Comment_HEADER_GUARD_

#include <xercesc/util/XercesDefs.hpp>

#include "DOM_CharacterData.hpp"

XERCES_CPP_NAMESPACE_BEGIN

class 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