00001 /*
00002 * The Apache Software License, Version 1.1
00003 *
00004 * Copyright (c) 1999-2000 The Apache Software Foundation. All rights
00005 * reserved.
00006 *
00007 * Redistribution and use in source and binary forms, with or without
00008 * modification, are permitted provided that the following conditions
00009 * are met:
00010 *
00011 * 1. Redistributions of source code must retain the above copyright
00012 * notice, this list of conditions and the following disclaimer.
00013 *
00014 * 2. Redistributions in binary form must reproduce the above copyright
00015 * notice, this list of conditions and the following disclaimer in
00016 * the documentation and/or other materials provided with the
00017 * distribution.
00018 *
00019 * 3. The end-user documentation included with the redistribution,
00020 * if any, must include the following acknowledgment:
00021 * "This product includes software developed by the
00022 * Apache Software Foundation (http://www.apache.org/)."
00023 * Alternately, this acknowledgment may appear in the software itself,
00024 * if and wherever such third-party acknowledgments normally appear.
00025 *
00026 * 4. The names "Xerces" and "Apache Software Foundation" must
00027 * not be used to endorse or promote products derived from this
00028 * software without prior written permission. For written
00029 * permission, please contact apache\@apache.org.
00030 *
00031 * 5. Products derived from this software may not be called "Apache",
00032 * nor may "Apache" appear in their name, without prior written
00033 * permission of the Apache Software Foundation.
00034 *
00035 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
00036 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00037 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00038 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
00039 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00040 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00041 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
00042 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00043 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00044 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
00045 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00046 * SUCH DAMAGE.
00047 * ====================================================================
00048 *
00049 * This software consists of voluntary contributions made by many
00050 * individuals on behalf of the Apache Software Foundation, and was
00051 * originally based on software copyright (c) 1999, International
00052 * Business Machines, Inc., http://www.ibm.com . For more information
00053 * on the Apache Software Foundation, please see
00054 * <http://www.apache.org/>.
00055 */
00056
00057
00058 //
00059 // file DStringPool.hpp
00060 //
00061
00062 //
00063 // This file is part of the internal implementation of the C++ XML DOM.
00064 // It should NOT be included or used directly by application programs.
00065 //
00066 // Applications should include the file <dom/DOM.hpp> for the entire
00067 // DOM API, or DOM_*.hpp for individual DOM classes, where the class
00068 // name is substituded for the *.
00069 //
00070
00071 #ifndef DStringPool_HEADER_GUARD_
00072 #define DStringPool_HEADER_GUARD_
00073
00074 #include <util/XercesDefs.hpp>
00075 #include <dom/DOMString.hpp>
00076
00077 struct DStringPoolEntry;
00078
00079 //
00080 // DStringPool is a hash table of DOMStrings.
00081 // Each DOM Document maintains a DStringPool containing a DOMString
00082 // for each Element tag name and Attribute Name that has been added
00083 // to the document. When creating additional elements or attributes,
00084 // if the name has been seen before, the already existing string
00085 // will be reused.
00086 //
00087 class DStringPool
00088 {
00089 public:
00090 DStringPool(int hashTableSize);
00091 ~DStringPool();
00092
00093 const DOMString &getPooledString(const DOMString &in);
00094 const DOMString &getPooledString(const XMLCh *in);
00095
00096 static const DOMString &getStaticString(const char *in, DOMString **loc);
00097
00098
00099 private:
00100 DStringPool(const DStringPool &other); // Copy constructor and assignment
00101 void operator = (const DStringPool &other); // of DStringPool are not supported.
00102
00103 DStringPoolEntry **fHashTable;
00104 int fHashTableSize;
00105 };
00106
00107 #endif