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// 
// DOMImplementation.h 
// 
// Library: XML 
// Package: DOM 
// Module:  DOM 
// 
// Definition of the DOM DOMImplementation class. 
// 
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH. 
// and Contributors. 
// 
// SPDX-License-Identifier:	BSL-1.0 
// 
 
 
#ifndef DOM_DOMImplementation_INCLUDED 
#define DOM_DOMImplementation_INCLUDED 
 
 
#include "Poco/XML/XML.h" 
#include "Poco/XML/XMLString.h" 
 
 
namespace Poco { 
namespace XML { 
 
 
class DocumentType; 
class Document; 
class NamePool; 
 
 
class XML_API DOMImplementation 
	/// The DOMImplementation interface provides a number of methods for 
	/// performing operations that are independent of any particular instance 
	/// of the document object model. 
	/// In this implementation, DOMImplementation is implemented as a singleton. 
{ 
public: 
	DOMImplementation(); 
		/// Creates the DOMImplementation. 
		 
	~DOMImplementation(); 
		/// Destroys the DOMImplementation. 
 
	bool hasFeature(const XMLString& feature, const XMLString& version) const; 
		/// Tests if the DOM implementation implements a specific feature. 
		/// 
		/// The only supported features are "XML", version "1.0" and "Core",  
		/// "Events", "MutationEvents" and "Traversal", version "2.0". 
	 
	// DOM Level 2 
	DocumentType* createDocumentType(const XMLString& name, const XMLString& publicId, const XMLString& systemId) const; 
		/// Creates an empty DocumentType node. Entity declarations and notations  
		/// are not made available. Entity reference expansions and default attribute  
		/// additions do not occur. 
 
	Document* createDocument(const XMLString& namespaceURI, const XMLString& qualifiedName, DocumentType* doctype) const; 
		/// Creates an XML Document object of the specified type with its document element. 
		/// 
		/// Note: You can also create a Document directly using the new operator. 
 
	static const DOMImplementation& instance(); 
		/// Returns a reference to the default DOMImplementation 
		/// object. 
		 
private: 
	static const XMLString FEATURE_XML; 
	static const XMLString FEATURE_CORE; 
	static const XMLString FEATURE_EVENTS; 
	static const XMLString FEATURE_MUTATIONEVENTS; 
	static const XMLString FEATURE_TRAVERSAL; 
	static const XMLString VERSION_1_0; 
	static const XMLString VERSION_2_0;	 
}; 
 
 
} } // namespace Poco::XML 
 
 
#endif // DOM_DOMImplementation_INCLUDED