DOMNodeIDMap.hpp
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上传日期:2013-06-25
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- #ifndef DOMNodeIDMap_HEADER_GUARD_
- #define DOMNodeIDMap_HEADER_GUARD_
- /*
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2001-2002 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) 2001, International
- * Business Machines, Inc., http://www.ibm.com . For more information
- * on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- */
- /*
- * $Id: DOMNodeIDMap.hpp,v 1.3 2002/11/04 15:07:34 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 <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/util/XercesDefs.hpp>
- XERCES_CPP_NAMESPACE_BEGIN
- //
- // Class DOMNodeIDMap is a hash table that is used in the implementation of
- // of DOM_Document::getElementsByID().
- //
- // Why Yet Another HashTable implementation? Becuase it can be significantly
- // smaller when tuned for this exact usage, and the generic RefHashTableOf
- // from the xerces utils project is not a paricularly good fit.
- //
- class DOMAttr;
- class DOMDocument;
- class DOMNodeIDMap {
- public:
- DOMNodeIDMap(int initialSize, DOMDocument *doc); // Create a new hash table, sized to hold "initialSize"
- // Entries. It will automatically grow if need be.
- virtual ~DOMNodeIDMap();
- private:
- DOMNodeIDMap(const DOMNodeIDMap &other); // No copy, assignement, comparison.
- DOMNodeIDMap &operator = (const DOMNodeIDMap &other);
- bool operator == (const DOMNodeIDMap &other);
- public:
- void add(DOMAttr *attr); // Add the specified attribute to the table.
- void remove(DOMAttr *other); // Remove the specified attribute.
- // Does nothing if the node is not in the table.
- DOMAttr *find(const XMLCh *ID); // Find the attribute node in the table with this ID
- private:
- void growTable();
- private:
- DOMAttr **fTable;
- XMLSize_t fSizeIndex; // Index of the current table size in the
- // array of possible table sizes.
- XMLSize_t fSize; // The current size of the table array
- // (number of slots, not bytes.)
- XMLSize_t fNumEntries; // The number of entries used.
- XMLSize_t fMaxEntries; // The max number of entries to use before
- // growing the table.
- DOMDocument *fDoc; // The owning document.
- };
- XERCES_CPP_NAMESPACE_END
- #endif