00001 #ifndef RefCountedImpl_HEADER_GUARD_
00002 #define RefCountedImpl_HEADER_GUARD_
00003 /*
00004 * The Apache Software License, Version 1.1
00005 *
00006 * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
00007 * reserved.
00008 *
00009 * Redistribution and use in source and binary forms, with or without
00010 * modification, are permitted provided that the following conditions
00011 * are met:
00012 *
00013 * 1. Redistributions of source code must retain the above copyright
00014 * notice, this list of conditions and the following disclaimer.
00015 *
00016 * 2. Redistributions in binary form must reproduce the above copyright
00017 * notice, this list of conditions and the following disclaimer in
00018 * the documentation and/or other materials provided with the
00019 * distribution.
00020 *
00021 * 3. The end-user documentation included with the redistribution,
00022 * if any, must include the following acknowledgment:
00023 * "This product includes software developed by the
00024 * Apache Software Foundation (http://www.apache.org/)."
00025 * Alternately, this acknowledgment may appear in the software itself,
00026 * if and wherever such third-party acknowledgments normally appear.
00027 *
00028 * 4. The names "Xerces" and "Apache Software Foundation" must
00029 * not be used to endorse or promote products derived from this
00030 * software without prior written permission. For written
00031 * permission, please contact apache\@apache.org.
00032 *
00033 * 5. Products derived from this software may not be called "Apache",
00034 * nor may "Apache" appear in their name, without prior written
00035 * permission of the Apache Software Foundation.
00036 *
00037 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00038 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00039 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00040 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00041 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00042 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00043 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00044 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00045 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00046 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00047 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00048 * SUCH DAMAGE.
00049 * ====================================================================
00050 *
00051 * This software consists of voluntary contributions made by many
00052 * individuals on behalf of the Apache Software Foundation, and was
00053 * originally based on software copyright (c) 1999, International
00054 * Business Machines, Inc., http://www.ibm.com . For more information
00055 * on the Apache Software Foundation, please see
00056 * <http://www.apache.org/>.
00057 */
00058
00059 /*
00060 * $Log: RefCountedImpl.hpp,v $
00061 * Revision 1.4 2000/03/02 19:54:04 roddey
00062 * This checkin includes many changes done while waiting for the
00063 * 1.1.0 code to be finished. I can't list them all here, but a list is
00064 * available elsewhere.
00065 *
00066 * Revision 1.3 2000/02/24 20:11:31 abagchi
00067 * Swat for removing Log from API docs
00068 *
00069 * Revision 1.2 2000/02/06 07:47:34 rahulj
00070 * Year 2K copyright swat.
00071 *
00072 * Revision 1.1.1.1 1999/11/09 01:09:19 twl
00073 * Initial checkin
00074 *
00075 * Revision 1.3 1999/11/08 20:44:33 rahul
00076 * Swat for adding in Product name and CVS comment log variable.
00077 *
00078 */
00079
00080 //
00081 // This file is part of the internal implementation of the C++ XML DOM.
00082 // It should NOT be included or used directly by application programs.
00083 //
00084 // Applications should include the file <dom/DOM.hpp> for the entire
00085 // DOM API, or DOM_*.hpp for individual DOM classes, where the class
00086 // name is substituded for the *.
00087 //
00088
00089
00090
00091 #include <util/XercesDefs.hpp>
00092
00093
00094 class RefCountedImpl
00095 {
00096 public:
00097 int nodeRefCount;
00098
00099 RefCountedImpl();
00100 virtual ~RefCountedImpl();
00101
00102 static void addRef(RefCountedImpl *thisNode);
00103 static void removeRef(RefCountedImpl *thisNode);
00104
00105 virtual void referenced(); // This function will be called by
00106 // the reference counting implementation
00107 // whenever the reference count transitions
00108 // from 0 to 1.
00109
00110 virtual void unreferenced(); // unreferenced() is called whenever the
00111 // the ref count goes from 1 to 0. (Nodes are
00112 // not deleted when the ref count goes to zero
00113 // if they are in the doc tree and the tree
00114 // is still referenced, so a nodes referenced /
00115 // unreferenced state may switch many times
00116 // over its life time.)
00117 };
00118
00119 #endif