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84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
//
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// NamePool.h
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//
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// Library: XML
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// Package: XML
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// Module: NamePool
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//
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// Definition of the NamePool class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// SPDX-License-Identifier: BSL-1.0
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//
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#ifndef XML_NamePool_INCLUDED
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#define XML_NamePool_INCLUDED
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#include "Poco/XML/XML.h"
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#include "Poco/XML/XMLString.h"
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#include "Poco/XML/Name.h"
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#ifndef POCO_XML_NAMEPOOL_DEFAULT_SIZE
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#define POCO_XML_NAMEPOOL_DEFAULT_SIZE 509
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#endif
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namespace Poco {
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namespace XML {
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class NamePoolItem;
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class XML_API NamePool
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/// A hashtable that stores XML names consisting of an URI, a
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/// local name and a qualified name.
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{
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public:
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NamePool(unsigned long size = POCO_XML_NAMEPOOL_DEFAULT_SIZE);
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/// Creates a name pool with room for up to size strings.
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///
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/// The given size should be a suitable prime number,
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/// e.g. 251, 509, 1021 or 4093.
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const Name& insert(const XMLString& qname, const XMLString& namespaceURI, const XMLString& localName);
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/// Returns a const reference to an Name for the given names.
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/// Creates the Name if it does not already exist.
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/// Throws a PoolOverflowException if the name pool is full.
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const Name& insert(const Name& name);
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/// Returns a const reference to an Name for the given name.
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/// Creates the Name if it does not already exist.
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/// Throws a PoolOverflowException if the name pool is full.
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void duplicate();
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/// Increments the reference count.
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void release();
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/// Decrements the reference count and deletes the object if the reference count reaches zero.
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protected:
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unsigned long hash(const XMLString& qname, const XMLString& namespaceURI, const XMLString& localName);
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~NamePool();
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private:
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NamePool(const NamePool&);
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NamePool& operator = (const NamePool&);
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NamePoolItem* _pItems;
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unsigned long _size;
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unsigned long _salt;
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int _rc;
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};
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} } // namespace Poco::XML
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#endif // XML_NamePool_INCLUDED
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