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64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
//
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// NodeList.h
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//
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// $Id: //poco/1.4/XML/include/Poco/DOM/NodeList.h#1 $
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//
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// Library: XML
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// Package: DOM
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// Module: DOM
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//
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// Definition of the DOM NodeList interface.
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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 DOM_NodeList_INCLUDED
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#define DOM_NodeList_INCLUDED
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#include "Poco/XML/XML.h"
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#include "Poco/DOM/DOMObject.h"
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namespace Poco {
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namespace XML {
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class Node;
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class XML_API NodeList: public DOMObject
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/// The NodeList interface provides the abstraction of an ordered
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/// collection of nodes, without defining or constraining how this
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/// collection is implemented.
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///
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/// The items in the NodeList are accessible via an integral index,
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/// starting from 0.
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///
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/// A NodeList returned from a method must be released with a call to
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/// release() when no longer needed.
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{
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public:
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virtual Node* item(unsigned long index) const = 0;
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/// Returns the index'th item in the collection. If index is
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/// greater than or equal to the number of nodes in the list,
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/// this returns null.
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virtual unsigned long length() const = 0;
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/// Returns the number of nodes in the list. The range of valid
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/// node indices is 0 to length - 1 inclusive.
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protected:
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virtual ~NodeList();
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};
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} } // namespace Poco::XML
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#endif // DOM_NodeList_INCLUDED
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