com.trolltech.qt.xml
Class QDomAttr

java.lang.Object
  extended by com.trolltech.qt.internal.QSignalEmitterInternal
      extended by com.trolltech.qt.QSignalEmitter
          extended by com.trolltech.qt.QtJambiObject
              extended by com.trolltech.qt.xml.QDomNode
                  extended by com.trolltech.qt.xml.QDomAttr
All Implemented Interfaces:
QtJambiInterface, java.lang.Cloneable

public class QDomAttr
extends QDomNode
implements java.lang.Cloneable

The QDomAttr class represents one attribute of a QDomElement. For example, the following piece of XML produces an element with no children, but two attributes:

    <link href="http://www.trolltech.com" color="red" />
You can access the attributes of an element with code like this:
    QDomElement e = //...
    //...
    QDomAttr a = e.attributeNode("href");
    System.out.println(a.value());                // prints "http://www.trolltech.com"
    a.setValue("http://doc.trolltech.com"); // change the node's attribute
    QDomAttr a2 = e.attributeNode("href");
    System.out.println(a2.value());               // prints "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 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/REC-DOM-Level-1/ and http://www.w3.org/TR/DOM-Level-2-Core/. For a more general introduction of the DOM implementation see the QDomDocument documentation.


Nested Class Summary
 
Nested classes/interfaces inherited from class com.trolltech.qt.xml.QDomNode
QDomNode.EncodingPolicy, QDomNode.NodeType
 
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
QSignalEmitter.AbstractSignal, QSignalEmitter.PrivateSignal0, QSignalEmitter.PrivateSignal1, QSignalEmitter.PrivateSignal2, QSignalEmitter.PrivateSignal3, QSignalEmitter.PrivateSignal4, QSignalEmitter.PrivateSignal5, QSignalEmitter.PrivateSignal6, QSignalEmitter.PrivateSignal7, QSignalEmitter.PrivateSignal8, QSignalEmitter.PrivateSignal9, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9
 
Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal
 
Field Summary
 
Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
currentSender
 
Constructor Summary
QDomAttr()
          Constructs an empty attribute.
QDomAttr(QDomAttr x)
          Constructs a copy of x.
 
Method Summary
 QDomAttr clone()
          This method is reimplemented for internal reasons
 java.lang.String name()
          Returns the attribute's name.
 QDomElement ownerElement()
          Returns the element node this attribute is attached to or a null node if this attribute is not attached to any element.
 void setValue(java.lang.String arg__1)
          Sets the attribute's value to v.
 boolean specified()
          Returns true if the attribute has been set by the user with setValue().
 java.lang.String value()
          Returns the value of the attribute or an empty string if the attribute has not been specified.
 
Methods inherited from class com.trolltech.qt.xml.QDomNode
appendChild, childNodes, clear, cloneNode, cloneNode, columnNumber, firstChild, firstChildElement, firstChildElement, hasAttributes, hasChildNodes, insertAfter, insertBefore, isAttr, isCDATASection, isCharacterData, isComment, isDocument, isDocumentFragment, isDocumentType, isElement, isEntity, isEntityReference, isNotation, isNull, isProcessingInstruction, isSupported, isText, lastChild, lastChildElement, lastChildElement, lineNumber, localName, namedItem, namespaceURI, nextSibling, nextSiblingElement, nextSiblingElement, nodeName, nodeType, nodeValue, normalize, ownerDocument, parentNode, prefix, previousSibling, previousSiblingElement, previousSiblingElement, removeChild, replaceChild, save, save, setNodeValue, setPrefix, toAttr, toCDATASection, toCharacterData, toComment, toDocument, toDocumentFragment, toDocumentType, toElement, toEntity, toEntityReference, toNotation, toProcessingInstruction, toText, writeTo
 
Methods inherited from class com.trolltech.qt.QtJambiObject
dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr
 
Methods inherited from class com.trolltech.qt.QSignalEmitter
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread
 
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
__qt_signalInitialization
 
Methods inherited from class java.lang.Object
getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface com.trolltech.qt.QtJambiInterface
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership
 

Constructor Detail

QDomAttr

public QDomAttr()
Constructs an empty attribute.


QDomAttr

public QDomAttr(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().

Method Detail

name

public final java.lang.String name()
Returns the attribute's name.


ownerElement

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


setValue

public final void setValue(java.lang.String arg__1)
Sets the attribute's value to v.

See also:
value().


specified

public final boolean specified()
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().


value

public final java.lang.String value()
Returns the value of the attribute or an empty string if the attribute has not been specified.

See also:
specified(), and setValue().


clone

public QDomAttr clone()
This method is reimplemented for internal reasons

Overrides:
clone in class QDomNode