DocumentImpl.hpp
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上传日期:2007-01-10
资源大小:6948k
文件大小:12k
源码类别:
xml/soap/webservice
开发平台:
C/C++
- #ifndef DocumentImpl_HEADER_GUARD_
- #define DocumentImpl_HEADER_GUARD_
- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 1999-2001 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Xerces" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation, and was
- * originally based on software copyright (c) 1999, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: DocumentImpl.hpp,v 1.25 2001/12/07 01:35:28 tng Exp $
- */
- //
- // 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 <dom/DOM.hpp> for the entire
- // DOM API, or DOM_*.hpp for individual DOM classes, where the class
- // name is substituded for the *.
- //
- #include <util/XercesDefs.hpp>
- #include "ParentNode.hpp"
- #include "DOM_Node.hpp"
- #include "DOM_Element.hpp"
- #include "util/RefVectorOf.hpp"
- #include "util/RefHashTableOf.hpp"
- #include "XMLDeclImpl.hpp"
- class DocumentTypeImpl;
- class ElementImpl;
- class AttrImpl;
- class CDATASectionImpl;
- class CommentImpl;
- class DeepNodeListImpl;
- class DocumentFragmentImpl;
- class DocumentTypeImpl;
- class DStringPool;
- class EntityImpl;
- class EntityReferenceImpl;
- class NotationImpl;
- class ProcessingInstructionImpl;
- class TextImpl;
- class NodeIteratorImpl;
- class TreeWalkerImpl;
- class DOM_NodeFilter;
- class NodeFilterImpl;
- class DOM_DOMImplementation;
- class DOMString;
- class NodeIDMap;
- class RangeImpl;
- typedef RefVectorOf<NodeIteratorImpl> NodeIterators;
- typedef RefVectorOf<TreeWalkerImpl> TreeWalkers;
- typedef RefVectorOf<RangeImpl> RangeImpls;
- class CDOM_EXPORT DocumentImpl: public ParentNode {
- private:
- // -----------------------------------------------------------------------
- // Private data types
- // -----------------------------------------------------------------------
- void setDocumentType(DocumentTypeImpl *doctype);
- DocumentTypeImpl *docType;
- ElementImpl *docElement;
- DStringPool *namePool;
- NodeIDMap *fNodeIDMap; // for use by GetElementsById().
- NodeIterators *iterators;
- TreeWalkers *treeWalkers;
- RefHashTableOf<void> *userData;
- RangeImpls *ranges;
- /**
- * Number of alterations made to this document since its creation.
- * Serves as a "dirty bit" so that live objects such as NodeList can
- * recognize when an alteration has been made and discard its cached
- * state information.
- * <p>
- * Any method that alters the tree structure MUST cause or be
- * accompanied by a call to changed(), to inform it that any outstanding
- * NodeLists may have to be updated.
- * <p>
- * (Required because NodeList is simultaneously "live" and integer-
- * indexed -- a bad decision in the DOM's design.)
- * <p>
- * Note that changes which do not affect the tree's structure -- changing
- * the node's name, for example -- do _not_ have to call changed().
- * <p>
- * Alternative implementation would be to use a cryptographic
- * Digest value rather than a count. This would have the advantage that
- * "harmless" changes (those producing equal() trees) would not force
- * NodeList to resynchronize. Disadvantage is that it's slightly more prone
- * to "false negatives", though that's the difference between "wildly
- * unlikely" and "absurdly unlikely". IF we start maintaining digests,
- * we should consider taking advantage of them.
- *
- * Note: This used to be done a node basis, so that we knew what
- * subtree changed. But since only DeepNodeList really use this today,
- * the gain appears to be really small compared to the cost of having
- * an int on every (parent) node plus having to walk up the tree all the
- * way to the root to mark the branch as changed everytime a node is
- * changed.
- * So we now have a single counter global to the document. It means that
- * some objects may flush their cache more often than necessary, but this
- * makes nodes smaller and only the document needs to be marked as changed.
- */
- int fChanges;
- /** Bypass error checking. */
- bool errorChecking;
- friend class NodeIteratorImpl;
- friend class TreeWalkerImpl;
- friend class RangeImpl;
- friend class DOMParser;
- public:
- DocumentImpl();
- DocumentImpl(const DOMString &namespaceURI, //DOM Level 2
- const DOMString &qualifiedName, DocumentTypeImpl *doctype);
- virtual ~DocumentImpl();
- virtual bool isDocumentImpl(); // RTTI replacement function
- virtual NodeImpl *cloneNode(bool deep);
- virtual DOMString getNodeName();
- virtual short getNodeType();
- virtual DocumentImpl * getOwnerDocument();
- virtual AttrImpl *createAttribute(const DOMString &name);
- virtual CDATASectionImpl *createCDATASection(const DOMString &data);
- virtual CommentImpl *createComment(const DOMString &data);
- virtual DocumentFragmentImpl *createDocumentFragment();
- virtual DocumentTypeImpl *createDocumentType(const DOMString &name);
- virtual DocumentTypeImpl *createDocumentType(const DOMString &qName,
- const DOMString &publicId,
- const DOMString &systemId);
- virtual ElementImpl *createElement(const DOMString & tagName);
- virtual ElementImpl *createElement(const XMLCh *tagName);
- virtual EntityImpl *createEntity(const DOMString & name);
- virtual EntityReferenceImpl *createEntityReference(const DOMString & name);
- virtual NotationImpl *createNotation(const DOMString & name);
- virtual ProcessingInstructionImpl *createProcessingInstruction(const DOMString & target, const DOMString & data);
- virtual TextImpl *createTextNode(const DOMString & data);
- virtual DocumentTypeImpl *getDoctype();
- virtual ElementImpl *getDocumentElement();
- virtual DeepNodeListImpl *getElementsByTagName(const DOMString & tagname);
- virtual NodeImpl *insertBefore(NodeImpl *newChild, NodeImpl *refChild);
- static bool isXMLName(const DOMString & s);
- virtual void referenced();
- virtual NodeImpl *removeChild(NodeImpl *oldChild);
- virtual void unreferenced();
- static NodeIteratorImpl* createNodeIterator(DOM_Node root, unsigned long whatToShow, DOM_NodeFilter* filter, bool entityReferenceExpansion);
- static TreeWalkerImpl* createTreeWalker(DOM_Node root, unsigned long whatToShow, DOM_NodeFilter* filter, bool entityReferenceExpansion);
- virtual XMLDeclImpl* createXMLDecl(const DOMString& version, const DOMString& encoding, const DOMString& standalone);
- virtual void* getUserData();
- virtual void setUserData(void* value);
- virtual RangeImpl* createRange();
- virtual RangeImpls* getRanges(); //non-standard api
- virtual void removeRange(RangeImpl* range); //non-standard api
- // helper functions to prevent storing userdata pointers on every node.
- virtual void setUserData(NodeImpl* n, void* data);
- virtual void* getUserData(NodeImpl* n);
- //Introduced in DOM Level 2
- virtual NodeImpl *importNode(NodeImpl *source, bool deep);
- virtual ElementImpl *createElementNS(const DOMString &namespaceURI,
- const DOMString &qualifiedName);
- virtual AttrImpl *createAttributeNS(const DOMString &namespaceURI,
- const DOMString &qualifiedName);
- virtual DeepNodeListImpl *getElementsByTagNameNS(const DOMString &namespaceURI,
- const DOMString &localName);
- virtual ElementImpl *getElementById(const DOMString &elementId);
- //Return the index > 0 of ':' in the given qualified name qName="prefix:localName".
- //Return 0 if there is no ':', or -1 if qName is malformed such as ":abcd".
- static int indexofQualifiedName(const DOMString & qName);
- static bool isKidOK(NodeImpl *parent, NodeImpl *child);
- inline NodeIDMap * getNodeIDMap() {return fNodeIDMap;};
- virtual void changed();
- virtual int changes();
- /**
- * Sets whether the DOM implementation performs error checking
- * upon operations. Turning off error checking only affects
- * the following DOM checks:
- * <ul>
- * <li>Checking strings to make sure that all characters are
- * legal XML characters
- * <li>Hierarchy checking such as allowed children, checks for
- * cycles, etc.
- * </ul>
- * <p>
- * Turning off error checking does <em>not</em> turn off the
- * following checks:
- * <ul>
- * <li>Read only checks
- * <li>Checks related to DOM events
- * </ul>
- */
- inline void setErrorChecking(bool check) {
- errorChecking = check;
- }
- /**
- * Returns true if the DOM implementation performs error checking.
- */
- inline bool getErrorChecking() {
- return errorChecking;
- }
- // -----------------------------------------------------------------------
- // Notification that lazy data has been deleted
- // -----------------------------------------------------------------------
- static void reinitDocumentImpl();
- };
- #endif