DOM_NamedNodeMap

class DOM_NamedNodeMap

NamedNodeMaps are used to represent collections of nodes that can be accessed by name

Inheritance:

Public

Documentation

NamedNodeMaps are used to represent collections of nodes that can be accessed by name. Note that NamedNodeMap does not inherit from NodeList; NamedNodeMaps are not maintained in any particular order. Nodes contained in a NamedNodeMap may also be accessed by an ordinal index, but this is simply to allow convenient enumeration of the contents, and does not imply that the DOM specifies an order to these Nodes.

Constructors and assignment operator

DOM_NamedNodeMap()
Default constructor for DOM_NamedNodeMap. The resulting object does not refer to an actual DOM_NamedNodeMap node; it will compare == to 0, and is similar to a null object reference variable in Java. NamedNopes are instantiated by these methods: DOM_Node::getAttributes, DOM_DocumentType::getEntities andDOM_DocumentType::getNotations

DOM_NamedNodeMap(const DOM_NamedNodeMap &other)
Copy constructor. Creates a new DOM_NamedNodeMap reference object that refers to the same underlying NamedNodeMap as the original.
Parameters:
other - The object to be copied.

DOM_NamedNodeMap& operator = (const DOM_NamedNodeMap &other)
Assignment operator.
Parameters:
other - The object to be copied.

DOM_NamedNodeMap& operator = (const DOM_NullPtr *other)
Assignment operator.
Parameters:
other - The object to be copied.

Destructor. ~DOM_NamedNodeMap() Destructor for DOM_NamedNodeMap. The object being destroyed is the reference object, not the underlying NamedNodeMap itself. Like most other DOM types in this implementation, memory management of named node maps is automatic. Instances of DOM_NamedNodeMap function as references to an underlying heap based implementation object, and should never be explicitly new-ed or deleted in application code, but should appear only as local variables or function parameters.

@Comparisons

bool operator == (const DOM_NamedNodeMap &other) const

Test whether this NamedNodeMap reference refers to the same underlying named node map as the other reference object. This does not compare the contents of two different objects.

Returns:: Returns true if the underlying named node map is same
Parameters:: arg - p The value to be compared

bool operator != (const DOM_NamedNodeMap &other) const

Test whether this NamedNodeMap reference refers to a different underlying named node map as the other reference object. This does not compare the contents of two different objects.

Returns:: Returns true if the underlying named node map is different
Parameters:: arg - p The value to be compared

bool operator == (const DOM_NullPtr *p) const

Use this comparison operator to test whether a Named Node Map reference is null.

Returns:: Returns true if the named node map is null
Parameters:: arg - p The value to be compared, which must be 0 or null.

bool operator != (const DOM_NullPtr *p) const

Use this comparison operator to test whether a Named Node Map reference is not null.

Returns:: Returns true if the named node map is not null
Parameters:: arg - p The value to be compared, which must not be 0 or null.

Set functions.

DOM_Node setNamedItem(DOM_Node arg)
Adds a node using its nodeName attribute.
As the nodeName attribute is used to derive the name which the node must be stored under, multiple nodes of certain types (those that have a "special" string value) cannot be stored as the names would clash. This is seen as preferable to allowing nodes to be aliased.
Throws:
DOMException WRONG_DOCUMENT_ERR: Raised if arg was created from a different document than the one that created the NamedNodeMap.
NO_MODIFICATION_ALLOWED_ERR: Raised if this NamedNodeMap is readonly.
INUSE_ATTRIBUTE_ERR: Raised if arg is an Attr that is already an attribute of another Element object. The DOM user must explicitly clone Attr nodes to re-use them in other elements.
Returns:
If the new Node replaces an existing node the replaced Node is returned, otherwise null is returned.
Parameters:
arg - A node to store in a named node map. The node will later be accessible using the value of the nodeName attribute of the node. If a node with that name is already present in the map, it is replaced by the new one.

Get functions.

DOM_Node item(unsigned int index)
Returns the indexth item in the map. If index is greater than or equal to the number of nodes in the map, this returns null.
Returns:
The node at the indexth position in the NamedNodeMap, or null if that is not a valid index.
Parameters:
index - Index into the map.

DOM_Node getNamedItem(const DOMString &name)
Retrieves a node specified by name.
Returns:
A DOM_Node (of any type) with the specified nodeName, or null if it does not identify any node in the map.
Parameters:
name - The nodeName of a node to retrieve.

unsigned int getLength() const
The number of nodes in the map. The range of valid child node indices is 0 to length-1 inclusive.

Functions to change the node collection.

DOM_Node removeNamedItem(const DOMString &name)
Removes a node specified by name. If the removed node is an Attr with a default value it is immediately replaced.
Throws:
DOMException NOT_FOUND_ERR: Raised if there is no node named name in the map.
NO_MODIFICATION_ALLOWED_ERR: Raised if this NamedNodeMap is readonly.
Returns:
The node removed from the map or null if no node with such a name exists.
Parameters:
name - The nodeName of a node to remove.

Functions introduced in DOM Level 2.

DOM_Node getNamedItemNS(const DOMString &namespaceURI, const DOMString &localName)
Retrieves a node specified by local name and namespace URI.
"Experimental - subject to change"

Returns:
A DOM_Node (of any type) with the specified local name and namespace URI, or null if they do not identify any node in the map.
Parameters:
namespaceURI - The namespace URI of the node to retrieve.
localName - The local name of the node to retrieve.

DOM_Node setNamedItemNS(DOM_Node arg)
Adds a node using its namespaceURI and localName.
"Experimental - subject to change"

Throws:
DOMException WRONG_DOCUMENT_ERR: Raised if arg was created from a different document than the one that created the DOM_NamedNodeMap.
NO_MODIFICATION_ALLOWED_ERR: Raised if this vNamedNodeMap is readonly.
INUSE_ATTRIBUTE_ERR: Raised if arg is an DOM_Attr that is already an attribute of another DOM_Element object. The DOM user must explicitly clone DOM_Attr nodes to re-use them in other elements.
Returns:
If the new DOM_Node replaces an existing node the replaced DOM_Node is returned, otherwise null is returned.
Parameters:
arg - A node to store in a named node map. The node will later be accessible using the value of the namespaceURI and localName attribute of the node. If a node with those namespace URI and local name is already present in the map, it is replaced by the new one.

DOM_Node removeNamedItemNS(const DOMString &namespaceURI, const DOMString &localName)
Removes a node specified by local name and namespace URI.
"Experimental - subject to change"

Throws:
DOMException NOT_FOUND_ERR: Raised if there is no node named name in the map.
NO_MODIFICATION_ALLOWED_ERR: Raised if this DOM_NamedNodeMap is readonly.
Returns:
The node removed from the map if a node with such a local name and namespace URI exists.
Parameters:
namespaceURI - The namespace URI of the node to remove.
localName - The local name of the node to remove. When this DOM_NamedNodeMap contains the attributes attached to an element, as returned by the attributes attribute of the DOM_Node interface, if the removed attribute is known to have a default value, an attribute immediately appears containing the default value as well as the corresponding namespace URI, local name, and prefix.

This class has no child classes.

alphabetic index hierarchy of classes

generated by doc++

class DOM_NamedNodeMap

Inheritance:

Public

Documentation