00001 /* 00002 * Copyright 1999-2004 The Apache Software Foundation. 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 #if !defined(XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680) 00017 #define XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680 00018 00019 00020 00021 // Base include file. Must be first. 00022 #include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp> 00023 00024 00025 00026 XALAN_CPP_NAMESPACE_BEGIN 00027 00028 00029 00033 class XALAN_PLATFORMSUPPORT_EXPORT XalanReferenceCountedObject 00034 { 00035 public: 00036 00040 static void 00041 addReference(XalanReferenceCountedObject* theInstance); 00042 00046 static void 00047 removeReference(XalanReferenceCountedObject* theInstance); 00048 00049 protected: 00050 00054 explicit 00055 XalanReferenceCountedObject(); 00056 00057 virtual 00058 ~XalanReferenceCountedObject(); 00059 00060 virtual void 00061 referenced() = 0; 00062 00063 virtual void 00064 dereferenced() = 0; 00065 00066 virtual unsigned int 00067 getReferenceCount() const 00068 { 00069 return m_referenceCount; 00070 } 00071 00072 private: 00073 00074 unsigned int m_referenceCount; 00075 00076 // Not implemented... 00077 XalanReferenceCountedObject& 00078 operator=(const XalanReferenceCountedObject&); 00079 00080 XalanReferenceCountedObject(const XalanReferenceCountedObject&); 00081 }; 00082 00083 00084 00085 XALAN_CPP_NAMESPACE_END 00086 00087 00088 00089 #endif // XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680
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