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java.lang.Objectcom.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.xml.QDomNode
com.trolltech.qt.xml.QDomAttr
public class QDomAttr
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 either set in the document or set with setValue()
; otherwise the value hasn't been set. 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 |
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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.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 |
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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 either been expicitly specified in the XML document or was 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.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 |
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disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership |
Constructor Detail |
---|
public QDomAttr()
public QDomAttr(QDomAttr 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 |
---|
public final java.lang.String name()
public final QDomElement ownerElement()
null node
if this attribute is not attached to any element.
public final void setValue(java.lang.String arg__1)
value()
.
public final boolean specified()
setValue()
. Returns false if the value hasn't been specified or set. setValue()
.
public final java.lang.String value()
specified()
, and setValue()
.
public QDomAttr clone()
clone
in class QDomNode
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