| #ifndef DOMTreeWalkerImpl_HEADER_GUARD_ |
| #define DOMTreeWalkerImpl_HEADER_GUARD_ |
| |
| /* |
| * 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: DOMTreeWalkerImpl.hpp 568078 2007-08-21 11:43:25Z amassari $ |
| */ |
| |
| // |
| // This file is part of the internal implementation of the C++ XML DOM. |
| // It should NOT be included or used directly by application programs. |
| // |
| // Applications should include the file <xercesc/dom/DOM.hpp> for the entire |
| // DOM API, or xercesc/dom/DOM*.hpp for individual DOM classes, where the class |
| // name is substituded for the *. |
| // |
| |
| #include <xercesc/dom/DOMTreeWalker.hpp> |
| |
| XERCES_CPP_NAMESPACE_BEGIN |
| |
| |
| class CDOM_EXPORT DOMTreeWalkerImpl : public DOMTreeWalker { |
| private: |
| // The whatToShow mask. |
| unsigned long fWhatToShow; |
| |
| // The NodeFilter reference. |
| DOMNodeFilter* fNodeFilter; |
| |
| // The current Node. |
| DOMNode* fCurrentNode; |
| |
| // The root Node. |
| DOMNode* fRoot; |
| |
| // The expandEntity reference flag. |
| bool fExpandEntityReferences; |
| |
| public: |
| // Implementation Note: No state is kept except the data above |
| // (fWhatToShow, fNodeFilter, fCurrentNode, fRoot) such that |
| // setters could be created for these data values and the |
| // implementation will still work. |
| |
| /** Public constructor */ |
| DOMTreeWalkerImpl ( |
| DOMNode* root, |
| unsigned long whatToShow, |
| DOMNodeFilter* nodeFilter, |
| bool expandEntityRef); |
| DOMTreeWalkerImpl (const DOMTreeWalkerImpl& twi); |
| DOMTreeWalkerImpl& operator= (const DOMTreeWalkerImpl& twi); |
| |
| // Return the root node. |
| virtual DOMNode* getRoot (); |
| |
| // Return the whatToShow value. |
| virtual unsigned long getWhatToShow (); |
| |
| // Return the NodeFilter. |
| virtual DOMNodeFilter* getFilter (); |
| |
| |
| // Return the current DOMNode. |
| virtual DOMNode* getCurrentNode (); |
| |
| // Return the current Node. |
| virtual void setCurrentNode (DOMNode* node); |
| |
| // Return the parent Node from the current node, |
| // after applying filter, whatToshow. |
| // If result is not null, set the current Node. |
| virtual DOMNode* parentNode (); |
| |
| // Return the first child Node from the current node, |
| // after applying filter, whatToshow. |
| // If result is not null, set the current Node. |
| virtual DOMNode* firstChild (); |
| |
| // Return the last child Node from the current node, |
| // after applying filter, whatToshow. |
| // If result is not null, set the current Node. |
| virtual DOMNode* lastChild (); |
| |
| // Return the previous sibling Node from the current node, |
| // after applying filter, whatToshow. |
| // If result is not null, set the current Node. |
| virtual DOMNode* previousSibling (); |
| |
| // Return the next sibling Node from the current node, |
| // after applying filter, whatToshow. |
| // If result is not null, set the current Node. |
| |
| virtual DOMNode* nextSibling (); |
| // Return the previous Node from the current node, |
| // after applying filter, whatToshow. |
| // If result is not null, set the current Node. |
| virtual DOMNode* previousNode (); |
| |
| // Return the next Node from the current node, |
| // after applying filter, whatToshow. |
| // If result is not null, set the current Node. |
| virtual DOMNode* nextNode (); |
| |
| // Get the expandEntity reference flag. |
| virtual bool getExpandEntityReferences(); |
| |
| // release the resource |
| virtual void release(); |
| |
| protected: |
| |
| // Internal function. |
| // Return the parent Node, from the input node |
| // after applying filter, whatToshow. |
| // The current node is not consulted or set. |
| DOMNode* getParentNode (DOMNode* node); |
| |
| // Internal function. |
| // Return the nextSibling Node, from the input node |
| // after applying filter, whatToshow. |
| // The current node is not consulted or set. |
| DOMNode* getNextSibling (DOMNode* node); |
| |
| // Internal function. |
| // Return the previous sibling Node, from the input node |
| // after applying filter, whatToshow. |
| // The current node is not consulted or set. |
| DOMNode* getPreviousSibling (DOMNode* node); |
| |
| // Internal function. |
| // Return the first child Node, from the input node |
| // after applying filter, whatToshow. |
| // The current node is not consulted or set. |
| DOMNode* getFirstChild (DOMNode* node); |
| |
| // Internal function. |
| // Return the last child Node, from the input node |
| // after applying filter, whatToshow. |
| // The current node is not consulted or set. |
| DOMNode* getLastChild (DOMNode* node); |
| |
| // The node is accepted if it passes the whatToShow and the filter. |
| short acceptNode (DOMNode* node); |
| |
| |
| }; |
| |
| XERCES_CPP_NAMESPACE_END |
| |
| #endif |