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QDomAttr Class Reference
[ XML module ]


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

#include <qdom.h>

Inherits QDomNode.

List of all member functions.

Public Members


Detailed Description

The QDomAttr class represents one attribute of a QDomElement

The QDomAttr is the representation of an attribute of a QDomElement.

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

  <link href="http://www.trolltech.com" color="red" />

One can use the attributes of an element with code similar to:

  QDomElement e = ....;
  QDomAttribute a = e.attributeNode("href");
  cout << a.value() << endl // gives "http://www.trolltech.com"
  a.setValue("http://doc.trolltech.com");
  QDomAttribute a2 = e.attributeNode("href");
  cout << a2.value() << endl // gives "http://doc.trolltech.com"

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 elements attribute you have to clone() the attribute before modifying it.

For further information about the Document Objct Model see http://www.w3.org/TR/REC-DOM-Level-1/ . For a more general introduction into the internals of the DOM implementation see the QDomDocument documentation.


Member Function Documentation

QDomAttr::QDomAttr ()

Constructs an empty attribute.

QDomAttr::QDomAttr ( const QDomAttr & x )

Copy constructor.

QDomAttr::~QDomAttr ()

Destructor.

bool QDomAttr::isAttr () const [virtual]

Returns true.

Reimplemented from QDomNode.

QString QDomAttr::name () const [virtual]

Returns the name of the attribute.

QDomNode::NodeType QDomAttr::nodeType() const [virtual]

Returns QDomNode::AttributeNode.

Reimplemented from QDomNode.

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

assignment operator.

void QDomAttr::setValue ( const QString & v ) [virtual]

Sets the value of the attribute to v.

See also: value().

bool QDomAttr::specified () const [virtual]

Returns TRUE if the attribute has been specified in the XML or by setValue()

See also: setValue().

QString QDomAttr::value () const [virtual]

Returns the current value of the attribute. Returns a null String when the attribute has not been specified.

See also: specified() and setValue().


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Qt version 2.2.0-beta2