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# StDOMNode.hpp

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    00001 #ifndef DOMSPtr_HEADER_GUARD_
    00002 #define DOMSPtr_HEADER_GUARD_
    00003
    00004 /*
    00005  * Licensed to the Apache Software Foundation (ASF) under one or more
    00006  * contributor license agreements.  See the NOTICE file distributed with
    00007  * this work for additional information regarding copyright ownership.
    00008  * The ASF licenses this file to You under the Apache License, Version 2.0
    00009  * (the "License"); you may not use this file except in compliance with
    00010  * the License.  You may obtain a copy of the License at
    00011  *
    00012  *      http://www.apache.org/licenses/LICENSE-2.0
    00013  *
    00014  * Unless required by applicable law or agreed to in writing, software
    00015  * distributed under the License is distributed on an "AS IS" BASIS,
    00016  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    00017  * See the License for the specific language governing permissions and
    00018  * limitations under the License.
    00019  */
    00020
    00021 /*
    00022  * $Id: StDOMNode.hpp 570125 2007-08-27 13:57:11Z amassari $
    00023  */
    00024
    00025 #include <xercesc/dom/DOMNode.hpp>
    00026 #include <xercesc/dom/DOMAttr.hpp>
    00027 #include <xercesc/dom/DOMElement.hpp>
    00028
    00029 XERCES_CPP_NAMESPACE_BEGIN
    00030
    00031 /* This class is a smart pointer implementation over DOMNode interface and
    00032 ** classes derived from it. It takes care of reference counting automatically.
    00033 ** Reference counting is optional so use of this class is experimental.
    00034 */
    00035 template <class T> class StDOMNode {
    00036     T* m_node;
    00037
    00038     static inline void INCREFCOUNT(T *x) { if (x != (T*)0) x->incRefCount(); }
    00039     static inline void DECREFCOUNT(T *x) { if (x != (T*)0) x->decRefCount(); }
    00040
    00041 public:
    00042     inline StDOMNode(T* node = (T*)0) : m_node(node) { INCREFCOUNT(m_node); }
    00043     inline StDOMNode(const StDOMNode& stNode) : m_node(stNode.m_node) { INCREFCOUNT(m_node); }
    00044     inline ~StDOMNode() { DECREFCOUNT(m_node); }
    00045
    00046     inline T* operator= (T *node)
    00047     {
    00048         if (m_node != node) {
    00049             DECREFCOUNT(m_node);
    00050             m_node = node;
    00051             INCREFCOUNT(m_node);
    00052         }
    00053         return (m_node);
    00054     }
    00055
    00056     inline bool operator!= (T* node) const { return (m_node != node); }
    00057     inline bool operator== (T* node) const { return (m_node == node); }
    00058
    00059     inline T& operator* () { return (*m_node); }
    00060     inline const T& operator* () const { return (*m_node); }
    00061     inline T* operator-> () const { return (m_node); }
    00062     inline operator T*() const { return (m_node); }
    00063     inline void ClearNode() { operator=((T*)(0)); }
    00064 };
    00065
    00066 #if defined(XML_DOMREFCOUNT_EXPERIMENTAL)
    00067     typedef StDOMNode<DOMNode> DOMNodeSPtr;
    00068 #else
    00069     typedef DOMNode* DOMNodeSPtr;
    00070 #endif
    00071
    00072 /* StDOMNode is a smart pointer implementation over DOMNode interface and
    00073 ** classes derived from it. It takes care of reference counting automatically.
    00074 ** Reference counting is optional so use of this class is experimental.
    00075 */
    00076 #if defined(XML_DOMREFCOUNT_EXPERIMENTAL)
    00077     typedef StDOMNode<DOMAttr> DOMAttrSPtr;
    00078 #else
    00079     typedef DOMAttr* DOMAttrSPtr;
    00080 #endif
    00081
    00082 /* StDOMNode is a smart pointer implementation over DOMNode interface and
    00083 ** classes derived from it. It takes care of reference counting automatically.
    00084 ** Reference counting is optional so use of this class is experimental.
    00085 */
    00086 #if defined(XML_DOMREFCOUNT_EXPERIMENTAL)
    00087     typedef StDOMNode<DOMElement> DOMElementSPtr;
    00088 #else
    00089     typedef DOMElement* DOMElementSPtr;
    00090 #endif
    00091
    00092 XERCES_CPP_NAMESPACE_END
    00093
    00094 #endif
    00095

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