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96 lines
3.1 KiB
C++
96 lines
3.1 KiB
C++
//
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// NamedNodeMap.h
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//
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// $Id: //poco/1.4/XML/include/Poco/DOM/NamedNodeMap.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 NamedNodeMap 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_NamedNodeMap_INCLUDED
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#define DOM_NamedNodeMap_INCLUDED
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#include "Poco/XML/XML.h"
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#include "Poco/DOM/DOMObject.h"
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#include "Poco/XML/XMLString.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 NamedNodeMap: public DOMObject
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/// Objects implementing the NamedNodeMap interface are used to represent collections
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/// of nodes that can be accessed by name. Note that NamedNodeMap does not inherit
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/// from NodeList; NamedNodeMaps are not maintained in any particular order.
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/// Objects contained in an object implementing NamedNodeMap may also be accessed
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/// by an ordinal index, but this is simply to allow convenient enumeration
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/// of the contents of a NamedNodeMap, and does not imply that the DOM specifies
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/// an order to these Nodes.
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///
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/// NamedNodeMap objects in the DOM are live.
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///
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/// A NamedNodeMap 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* getNamedItem(const XMLString& name) const = 0;
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/// Retrieves a node specified by name.
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virtual Node* setNamedItem(Node* arg) = 0;
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/// Adds a node using its nodeName attribute. If a node with that name is already
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/// present in this map, it is replaced by the new one.
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/// As the nodeName attribute is used to derive the name which the node must
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/// be stored under, multiple nodes of certain types (those that have a "special"
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/// string value) cannot be stored as the names would clash. This is seen as
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/// preferable to allowing nodes to be aliased.
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virtual Node* removeNamedItem(const XMLString& name) = 0;
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/// Removes a node specified by name. When this map contains the attributes
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/// attached to an element, if the removed attribute is known to have a default
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/// value, an attribute immediately appears containing the default value.
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virtual Node* item(unsigned long index) const = 0;
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/// Returns the index'th item in the map. If index is greater
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/// than or equal to the number of nodes in the map, this
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/// returns null.
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virtual unsigned long length() const = 0;
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/// Returns the number of nodes in the map. The range of valid
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/// child node indices is 0 to length - 1 inclusive.
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// DOM Level 2
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virtual Node* getNamedItemNS(const XMLString& namespaceURI, const XMLString& localName) const = 0;
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/// Retrieves a node specified by name.
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virtual Node* setNamedItemNS(Node* arg) = 0;
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/// Adds a node using its nodeName attribute.
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/// If a node with that namespace URI and that local name is already
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/// present in this map, it is replaced by the new one.
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virtual Node* removeNamedItemNS(const XMLString& namespaceURI, const XMLString& localName) = 0;
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/// Removes a node specified by name.
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protected:
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virtual ~NamedNodeMap();
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};
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} } // namespace Poco::XML
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#endif // DOM_NamedNodeMap_INCLUDED
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