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XalanDOMStringPool.hpp

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00001 /*
00002  * The Apache Software License, Version 1.1
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00004  *
00005  * Copyright (c) 1999-2000 The Apache Software Foundation.  All rights 
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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
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00017  *    the documentation and/or other materials provided with the
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00019  *
00020  * 3. The end-user documentation included with the redistribution,
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00022  *       "This product includes software developed by the
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00024  *    Alternately, this acknowledgment may appear in the software itself,
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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
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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/DOMStringHelper.hpp>
00073 
00074 
00075 
00076 class XALAN_PLATFORMSUPPORT_EXPORT XalanDOMStringPool
00077 {
00078 public:
00079 
00080     class StringKey
00081     {
00082     public:
00083 
00084         explicit
00085         StringKey();
00086 
00087         StringKey(
00088                 const XalanDOMChar*     theString,
00089                 unsigned int            theLength) :
00090             m_string(theString),
00091             m_length(theLength)
00092         {
00093         }
00094 
00095         ~StringKey()
00096         {
00097         }
00098 
00099         bool
00100         operator<(const StringKey&  theRHS) const;
00101 
00102     private:
00103 
00104         const XalanDOMChar*     m_string;
00105 
00106         unsigned int            m_length;
00107     };
00108 
00109 #if defined(XALAN_NO_NAMESPACES)
00110     typedef deque<XalanDOMString>                               XalanDOMStringCollectionType;
00111 
00112     typedef map<
00113                 StringKey,
00114                 XalanDOMStringCollectionType::const_iterator,
00115                 less<StringKey> >                               IteratorMapType;
00116 #else
00117     typedef std::deque<XalanDOMString>                          XalanDOMStringCollectionType;
00118 
00119     typedef std::map<
00120                 StringKey,
00121                 XalanDOMStringCollectionType::const_iterator>   IteratorMapType;
00122 #endif
00123 
00124     typedef XalanDOMStringCollectionType::size_type     size_type;
00125 
00126     explicit
00127     XalanDOMStringPool();
00128 
00129     virtual
00130     ~XalanDOMStringPool();
00131 
00137     virtual void
00138     clear();
00139 
00145     virtual size_type
00146     size() const;
00147 
00154     virtual const XalanDOMString&
00155     get(const XalanDOMString&   theString);
00156 
00164     virtual const XalanDOMString&
00165     get(
00166             const XalanDOMChar*     theString,
00167             unsigned int            theLength = unsigned(-1));
00168 
00169 private:
00170 
00171     // Not implemented, for now...
00172     XalanDOMStringPool(const XalanDOMStringPool&);
00173 
00174     XalanDOMStringPool&
00175     operator=(const XalanDOMStringPool&);
00176 
00177     bool
00178     operator==(const XalanDOMStringPool&) const;
00179 
00180     // Data members...
00181     XalanDOMStringCollectionType    m_strings;
00182 
00183     IteratorMapType                 m_index;
00184 
00185     static const XalanDOMString     s_emptyString;
00186 };
00187 
00188 
00189 
00190 #endif  // !defined(XALANDOMSTRINGPOOL_HEADER_GUARD_1357924680)

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