00001 /* 00002 * The Apache Software License, Version 1.1 00003 * 00004 * 00005 * Copyright (c) 1999-2000 The Apache Software Foundation. All rights 00006 * reserved. 00007 * 00008 * Redistribution and use in source and binary forms, with or without 00009 * modification, are permitted provided that the following conditions 00010 * are met: 00011 * 00012 * 1. Redistributions of source code must retain the above copyright 00013 * notice, this list of conditions and the following disclaimer. 00014 * 00015 * 2. Redistributions in binary form must reproduce the above copyright 00016 * notice, this list of conditions and the following disclaimer in 00017 * the documentation and/or other materials provided with the 00018 * distribution. 00019 * 00020 * 3. The end-user documentation included with the redistribution, 00021 * if any, must include the following acknowledgment: 00022 * "This product includes software developed by the 00023 * Apache Software Foundation (http://www.apache.org/)." 00024 * Alternately, this acknowledgment may appear in the software itself, 00025 * if and wherever such third-party acknowledgments normally appear. 00026 * 00027 * 4. The names "Xalan" and "Apache Software Foundation" must 00028 * not be used to endorse or promote products derived from this 00029 * software without prior written permission. For written 00030 * permission, please contact apache@apache.org. 00031 * 00032 * 5. Products derived from this software may not be called "Apache", 00033 * nor may "Apache" appear in their name, without prior written 00034 * permission of the Apache Software Foundation. 00035 * 00036 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 00037 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 00038 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 00039 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 00040 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00041 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00042 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 00043 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 00044 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 00045 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 00046 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00047 * SUCH DAMAGE. 00048 * ==================================================================== 00049 * 00050 * This software consists of voluntary contributions made by many 00051 * individuals on behalf of the Apache Software Foundation and was 00052 * originally based on software copyright (c) 1999, International 00053 * Business Machines, Inc., http://www.ibm.com. For more 00054 * information on the Apache Software Foundation, please see 00055 * <http://www.apache.org/>. 00056 */ 00057 #if !defined(XALANDOMSTRINGPOOL_HEADER_GUARD_1357924680) 00058 #define XALANDOMSTRINGPOOL_HEADER_GUARD_1357924680 00059 00060 00061 00062 // Base include file. Must be first. 00063 #include <PlatformSupport/PlatformSupportDefinitions.hpp> 00064 00065 00066 00067 #include <deque> 00068 #include <map> 00069 00070 00071 00072 #include <PlatformSupport/ArenaAllocator.hpp> 00073 #include <PlatformSupport/DOMStringHelper.hpp> 00074 #include <PlatformSupport/XalanDOMStringHashTable.hpp> 00075 00076 00077 00078 class XALAN_PLATFORMSUPPORT_EXPORT XalanDOMStringPool 00079 { 00080 public: 00081 00082 enum { eDefaultBlockSize = 1024, 00083 eDefaultBucketCount = XalanDOMStringHashTable::eDefaultBucketCount, 00084 eDefaultBucketSize = XalanDOMStringHashTable::eDefaultBucketSize }; 00085 00093 explicit 00094 XalanDOMStringPool( 00095 unsigned int theBlockSize = eDefaultBlockSize, 00096 unsigned int theBucketCount = eDefaultBucketCount, 00097 unsigned int theBucketSize = eDefaultBucketSize); 00098 00099 virtual 00100 ~XalanDOMStringPool(); 00101 00106 virtual void 00107 clear(); 00108 00114 virtual unsigned int 00115 size() const; 00116 00123 virtual const XalanDOMString& 00124 get(const XalanDOMString& theString); 00125 00133 virtual const XalanDOMString& 00134 get( 00135 const XalanDOMChar* theString, 00136 unsigned int theLength = unsigned(-1)); 00137 00144 const XalanDOMStringHashTable& 00145 getHashTable() const 00146 { 00147 return m_hashTable; 00148 } 00149 00150 private: 00151 00152 // Not implemented, for now... 00153 XalanDOMStringPool(const XalanDOMStringPool&); 00154 00155 XalanDOMStringPool& 00156 operator=(const XalanDOMStringPool&); 00157 00158 bool 00159 operator==(const XalanDOMStringPool&) const; 00160 00161 #if defined(XALAN_NO_DEFAULT_TEMPLATE_ARGUMENTS) 00162 typedef ArenaBlock<XalanDOMString> ArenaBlockType; 00163 00164 typedef ArenaAllocator<XalanDOMString, 00165 ArenaBlockType> ArenaAllocatorType; 00166 #else 00167 typedef ArenaAllocator<XalanDOMString> ArenaAllocatorType; 00168 #endif 00169 00170 // Data members... 00171 ArenaAllocatorType m_stringAllocator; 00172 00173 unsigned int m_stringCount; 00174 00175 XalanDOMStringHashTable m_hashTable; 00176 00177 static const XalanDOMString s_emptyString; 00178 }; 00179 00180 00181 00182 #endif // !defined(XALANDOMSTRINGPOOL_HEADER_GUARD_1357924680)
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