The QDomAttr class represents one attribute of a QDomElement. More...

#include <qdom.h>

Inheritance diagram for QDomAttr:

Public Functions
QString	name () const
	Returns the attribute's name. More...

QDomNode::NodeType	nodeType () const
	Returns AttributeNode. More...

QDomAttr &	operator= (const QDomAttr &)
	Assigns x to this DOM attribute. More...

QDomElement	ownerElement () const
	Returns the element node this attribute is attached to or a null node if this attribute is not attached to any element. More...

	QDomAttr ()
	Constructs an empty attribute. More...

	QDomAttr (const QDomAttr &x)
	Constructs a copy of x. More...

void	setValue (const QString &)
	Sets the attribute's value to v. More...

bool	specified () const
	Returns true if the attribute has been set by the user with setValue(). More...

QString	value () const
	Returns the value of the attribute or an empty string if the attribute has not been specified. More...

Public Functions inherited from QDomNode
QDomNode	appendChild (const QDomNode &newChild)
	Appends newChild as the node's last child. More...

QDomNamedNodeMap	attributes () const
	Returns a named node map of all attributes. More...

QDomNodeList	childNodes () const
	Returns a list of all direct child nodes. More...

void	clear ()
	Converts the node into a null node; if it was not a null node before, its type and contents are deleted. More...

QDomNode	cloneNode (bool deep=true) const
	Creates a deep (not shallow) copy of the QDomNode. More...

int	columnNumber () const
	For nodes created by QDomDocument::setContent(), this function returns the column number in the XML document where the node was parsed. More...

QDomNode	firstChild () const
	Returns the first child of the node. More...

QDomElement	firstChildElement (const QString &tagName=QString()) const
	Returns the first child element with tag name tagName if tagName is non-empty; otherwise returns the first child element. More...

bool	hasAttributes () const
	Returns true if the node has attributes; otherwise returns false. More...

bool	hasChildNodes () const
	Returns true if the node has one or more children; otherwise returns false. More...

QDomNode	insertAfter (const QDomNode &newChild, const QDomNode &refChild)
	Inserts the node newChild after the child node refChild. More...

QDomNode	insertBefore (const QDomNode &newChild, const QDomNode &refChild)
	Inserts the node newChild before the child node refChild. More...

bool	isAttr () const
	Returns true if the node is an attribute; otherwise returns false. More...

bool	isCDATASection () const
	Returns true if the node is a CDATA section; otherwise returns false. More...

bool	isCharacterData () const
	Returns true if the node is a character data node; otherwise returns false. More...

bool	isComment () const
	Returns true if the node is a comment; otherwise returns false. More...

bool	isDocument () const
	Returns true if the node is a document; otherwise returns false. More...

bool	isDocumentFragment () const
	Returns true if the node is a document fragment; otherwise returns false. More...

bool	isDocumentType () const
	Returns true if the node is a document type; otherwise returns false. More...

bool	isElement () const
	Returns true if the node is an element; otherwise returns false. More...

bool	isEntity () const
	Returns true if the node is an entity; otherwise returns false. More...

bool	isEntityReference () const
	Returns true if the node is an entity reference; otherwise returns false. More...

bool	isNotation () const
	Returns true if the node is a notation; otherwise returns false. More...

bool	isNull () const
	Returns true if this node is null (i.e. More...

bool	isProcessingInstruction () const
	Returns true if the node is a processing instruction; otherwise returns false. More...

bool	isSupported (const QString &feature, const QString &version) const
	Returns true if the DOM implementation implements the feature feature and this feature is supported by this node in the version version; otherwise returns false. More...

bool	isText () const
	Returns true if the node is a text node; otherwise returns false. More...

QDomNode	lastChild () const
	Returns the last child of the node. More...

QDomElement	lastChildElement (const QString &tagName=QString()) const
	Returns the last child element with tag name tagName if tagName is non-empty; otherwise returns the last child element. More...

int	lineNumber () const
	For nodes created by QDomDocument::setContent(), this function returns the line number in the XML document where the node was parsed. More...

QString	localName () const
	If the node uses namespaces, this function returns the local name of the node; otherwise it returns an empty string. More...

QDomNode	namedItem (const QString &name) const
	Returns the first direct child node for which nodeName() equals name. More...

QString	namespaceURI () const
	Returns the namespace URI of this node or an empty string if the node has no namespace URI. More...

QDomNode	nextSibling () const
	Returns the next sibling in the document tree. More...

QDomElement	nextSiblingElement (const QString &taName=QString()) const
	Returns the next sibling element with tag name tagName if tagName is non-empty; otherwise returns any next sibling element. More...

QString	nodeName () const
	Returns the name of the node. More...

NodeType	nodeType () const
	Returns the type of the node. More...

QString	nodeValue () const
	Returns the value of the node. More...

void	normalize ()
	Calling normalize() on an element converts all its children into a standard form. More...

bool	operator!= (const QDomNode &) const
	Returns true if n and this DOM node are not equal; otherwise returns false. More...

QDomNode &	operator= (const QDomNode &)
	Assigns a copy of n to this DOM node. More...

bool	operator== (const QDomNode &) const
	Returns true if n and this DOM node are equal; otherwise returns false. More...

QDomDocument	ownerDocument () const
	Returns the document to which this node belongs. More...

QDomNode	parentNode () const
	Returns the parent node. More...

QString	prefix () const
	Returns the namespace prefix of the node or an empty string if the node has no namespace prefix. More...

QDomNode	previousSibling () const
	Returns the previous sibling in the document tree. More...

QDomElement	previousSiblingElement (const QString &tagName=QString()) const
	Returns the previous sibilng element with tag name tagName if tagName is non-empty; otherwise returns any previous sibling element. More...

	QDomNode ()
	Constructs a null node. More...

	QDomNode (const QDomNode &)
	Constructs a copy of n. More...

QDomNode	removeChild (const QDomNode &oldChild)
	Removes oldChild from the list of children. More...

QDomNode	replaceChild (const QDomNode &newChild, const QDomNode &oldChild)
	Replaces oldChild with newChild. More...

void	save (QTextStream &, int) const
	Writes the XML representation of the node and all its children to the stream str. More...

void	save (QTextStream &, int, EncodingPolicy) const
	If encodingPolicy is QDomNode::EncodingFromDocument, this function behaves as save(QTextStream &str, int indent). More...

void	setNodeValue (const QString &)
	Sets the node's value to v. More...

void	setPrefix (const QString &pre)
	If the node has a namespace prefix, this function changes the namespace prefix of the node to pre. More...

QDomAttr	toAttr () const
	Converts a QDomNode into a QDomAttr. More...

QDomCDATASection	toCDATASection () const
	Converts a QDomNode into a QDomCDATASection. More...

QDomCharacterData	toCharacterData () const
	Converts a QDomNode into a QDomCharacterData. More...

QDomComment	toComment () const
	Converts a QDomNode into a QDomComment. More...

QDomDocument	toDocument () const
	Converts a QDomNode into a QDomDocument. More...

QDomDocumentFragment	toDocumentFragment () const
	Converts a QDomNode into a QDomDocumentFragment. More...

QDomDocumentType	toDocumentType () const
	Converts a QDomNode into a QDomDocumentType. More...

QDomElement	toElement () const
	Converts a QDomNode into a QDomElement. More...

QDomEntity	toEntity () const
	Converts a QDomNode into a QDomEntity. More...

QDomEntityReference	toEntityReference () const
	Converts a QDomNode into a QDomEntityReference. More...

QDomNotation	toNotation () const
	Converts a QDomNode into a QDomNotation. More...

QDomProcessingInstruction	toProcessingInstruction () const
	Converts a QDomNode into a QDomProcessingInstruction. More...

QDomText	toText () const
	Converts a QDomNode into a QDomText. More...

	~QDomNode ()
	Destroys the object and frees its resources. More...

Private Functions
	QDomAttr (QDomAttrPrivate *)

Friends
class	QDomDocument

class	QDomElement

class	QDomNode

Additional Inherited Members
Public Types inherited from QDomNode
enum	EncodingPolicy { EncodingFromDocument = 1, EncodingFromTextStream = 2 }
	This enum specifies how QDomNode::save() determines what encoding to use when serializing. More...

enum	NodeType { ElementNode = 1, AttributeNode = 2, TextNode = 3, CDATASectionNode = 4, EntityReferenceNode = 5, EntityNode = 6, ProcessingInstructionNode = 7, CommentNode = 8, DocumentNode = 9, DocumentTypeNode = 10, DocumentFragmentNode = 11, NotationNode = 12, BaseNode = 21, CharacterDataNode = 22 }
	This enum defines the type of the node: More...

Protected Functions inherited from QDomNode
	QDomNode (QDomNodePrivate *)
	Constructs a new node for the data n. More...

Protected Variables inherited from QDomNode
QDomNodePrivate *	impl

Related Functions inherited from QDomNode
QTextStream &	operator<< (QTextStream &str, const QDomNode &node)
	Writes the XML representation of the node node and all its children to the stream str. More...

Detailed Description

The QDomAttr class represents one attribute of a QDomElement.

Note: This class or function is reentrant.

Attention: Module: QtXml

For example, the following piece of XML produces an element with no children, but two attributes:

You can access the attributes of an element with code like this:

QDomElement e = //...
//...
QDomAttr a = e.attributeNode("href");
cout << a.value() << endl;                // prints "http://qt.nokia.com"
a.setValue("http://qt.nokia.com/doc"); // change the node's attribute
QDomAttr a2 = e.attributeNode("href");
cout << a2.value() << endl;               // prints "http://qt.nokia.com/doc"

This example also shows that changing an attribute received from an element changes the attribute of the element. If you do not want to change the value of the element's attribute you must use cloneNode() to get an independent copy of the attribute.

QDomAttr can return the name() and value() of an attribute. An attribute's value is set with setValue(). If specified() returns true the value was set with setValue(). The node this attribute is attached to (if any) is returned by ownerElement().

For further information about the Document Object Model see http://www.w3.org/TR/DOM-Level-2-Core/. For a more general introduction of the DOM implementation see the QDomDocument documentation.

Definition at line 449 of file qdom.h.

Constructors and Destructors

◆ QDomAttr() [1/3]

QDomAttr::QDomAttr ( )

Constructs an empty attribute.

Definition at line 4384 of file qdom.cpp.

4385 {

4386 }

◆ QDomAttr() [2/3]

QDomAttr::QDomAttr ( const QDomAttr & x )

Constructs a copy of x.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().

Definition at line 4395 of file qdom.cpp.

     : QDomNode(x)
 {
 }

◆ QDomAttr() [3/3]

QDomAttr::QDomAttr ( QDomAttrPrivate * n )

private

Definition at line 4400 of file qdom.cpp.

     : QDomNode(n)
 {
 }

Functions

◆ name()

QString QDomAttr::name ( ) const

Returns the attribute's name.

Definition at line 4420 of file qdom.cpp.

 {
     if (!impl)
         return QString();
     return impl->nodeName();
 }

◆ nodeType()

QDomNode::NodeType QDomAttr::nodeType ( ) const

inline

Returns AttributeNode.

Definition at line 466 of file qdom.h.

466 { return AttributeNode; }

QDomNode::AttributeNode

Definition: qdom.h:133

◆ operator=()

QDomAttr & QDomAttr::operator= ( const QDomAttr & x )

Assigns x to this DOM attribute.

The data of the copy is shared (shallow copy): modifying one node will also change the other. If you want to make a deep copy, use cloneNode().

Definition at line 4412 of file qdom.cpp.

 {
     return (QDomAttr&) QDomNode::operator=(x);
 }

◆ ownerElement()

QDomElement QDomAttr::ownerElement ( ) const

Returns the element node this attribute is attached to or a null node if this attribute is not attached to any element.

Definition at line 4445 of file qdom.cpp.

 {
     Q_ASSERT(impl->parent());
     if (!impl->parent()->isElement())
         return QDomElement();
     return QDomElement((QDomElementPrivate*)(impl->parent()));
 }

◆ setValue()

void QDomAttr::setValue ( const QString & v )

Sets the attribute's value to v.

See also: value()

Definition at line 4471 of file qdom.cpp.

 {
     if (!impl)
         return;
     impl->setNodeValue(v);
     IMPL->m_specified = true;
 }

◆ specified()

bool QDomAttr::specified ( ) const

Returns true if the attribute has been set by the user with setValue().

Returns false if the value hasn't been specified or set.

See also: setValue()

Definition at line 4433 of file qdom.cpp.

 {
     if (!impl)
         return false;
     return IMPL->specified();
 }

◆ value()

QString QDomAttr::value ( ) const

Returns the value of the attribute or an empty string if the attribute has not been specified.

See also: specified() setValue()

Definition at line 4459 of file qdom.cpp.

 {
     if (!impl)
         return QString();
     return impl->nodeValue();
 }

Friends and Related Functions

◆ QDomDocument

friend class QDomDocument

friend

Definition at line 471 of file qdom.h.

◆ QDomElement

friend class QDomElement

friend

Definition at line 472 of file qdom.h.

Referenced by ownerElement().

◆ QDomNode

friend class QDomNode

friend

Definition at line 473 of file qdom.h.

The documentation for this class was generated from the following files:

/src/xml/dom/qdom.h
/src/xml/dom/qdom.cpp

Public Functions

Private Functions

Friends

Additional Inherited Members

Detailed Description

Constructors and Destructors

◆ QDomAttr() [1/3]

◆ QDomAttr() [2/3]

◆ QDomAttr() [3/3]

Functions

◆ name()

◆ nodeType()

◆ operator=()

◆ ownerElement()

◆ setValue()

◆ specified()

◆ value()

Friends and Related Functions

◆ QDomDocument

◆ QDomElement

◆ QDomNode