source: NonGTP/Xerces/xercesc/dom/deprecated/DStringPool.hpp @ 188

/*
 * The Apache Software License, Version 1.1
 *
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 * modification, are permitted provided that the following conditions
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 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
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 * This software consists of voluntary contributions made by many
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 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.ibm.com .  For more information
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//
// file DStringPool.hpp
//

//
//  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/deprecated/DOM.hpp> for the entire
//  DOM API, or DOM_*.hpp for individual DOM classes, where the class
//  name is substituded for the *.
//

#ifndef DStringPool_HEADER_GUARD_
#define DStringPool_HEADER_GUARD_

#include "DOMString.hpp"
#include <xercesc/util/XMLRegisterCleanup.hpp>
#include <xercesc/util/PlatformUtils.hpp>

XERCES_CPP_NAMESPACE_BEGIN


struct DStringPoolEntry;

//
// DStringPool is a hash table of DOMStrings.
//  Each DOM Document maintains a DStringPool containing a DOMString
//  for each Element tag name and Attribute Name that has been added
//  to the document.  When creating additional elements or attributes,
//  if the name has been seen before, the already existing string
//  will be reused.
//
class DStringPool : public XMemory
{
public:
    DStringPool(int  hashTableSize,
                MemoryManager* const manager = XMLPlatformUtils::fgMemoryManager);
    ~DStringPool();

    const DOMString &getPooledString(const DOMString &in);
    const DOMString &getPooledString(const XMLCh *in);

    static const DOMString &getStaticString(const char *in
                                          , DOMString **loc
                                          , XMLRegisterCleanup::XMLCleanupFn fn
                                          , XMLRegisterCleanup &clnObj);

private:
    DStringPool(const DStringPool &other);      // Copy constructor and assignment
    DStringPool& operator = (const DStringPool &other); //  of DStringPool are not supported.

    DStringPoolEntry **fHashTable;
    int              fHashTableSize;
    MemoryManager*   fMemoryManager;
};

XERCES_CPP_NAMESPACE_END

#endif