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java.lang.Objectcom.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.xml.QDomImplementation
public class QDomImplementation
The QDomImplementation
class provides information about the features of the DOM implementation. This class describes the features that are supported by the DOM implementation. Currently the XML subset of DOM Level 1 and DOM Level 2 Core are supported.
Normally you will use the function QDomDocument::implementation()
to get the implementation object.
You can create a new document type with createDocumentType()
and a new document with createDocument()
.
For further information about the Document Object Model see Level 1 and Level 2 Core. For a more general introduction of the DOM implementation see the QDomDocument
documentation.
The QDom
classes have a few issues of nonconformance with the XML specifications that cannot be fixed in Qt 4 without breaking backward  compatibility. The QtXmlPatterns module and the QXmlStreamReader
and  QXmlStreamWriter
classes have a higher degree of a conformance.
hasFeature()
.
Nested Class Summary | |
---|---|
static class |
QDomImplementation.InvalidDataPolicy
This enum specifies what should be done when a factory function in QDomDocument is called with invalid data. |
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter |
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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 |
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currentSender |
Constructor Summary | |
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QDomImplementation()
Constructs a QDomImplementation object. |
|
QDomImplementation(QDomImplementation arg__1)
Constructs a copy of x. |
Method Summary | |
---|---|
QDomImplementation |
clone()
This method is reimplemented for internal reasons |
QDomDocument |
createDocument(java.lang.String nsURI,
java.lang.String qName,
QDomDocumentType doctype)
Creates a DOM document with the document type doctype. |
QDomDocumentType |
createDocumentType(java.lang.String qName,
java.lang.String publicId,
java.lang.String systemId)
Creates a document type node for the name qName. |
boolean |
hasFeature(java.lang.String feature,
java.lang.String version)
The function returns true if QDom implements the requested version of a feature; otherwise returns false. |
static QDomImplementation.InvalidDataPolicy |
invalidDataPolicy()
Returns the invalid data policy, which specifies what should be done when a factory function in QDomDocument is passed invalid data. |
boolean |
isNull()
Returns false if the object was created by QDomDocument::implementation() ; otherwise returns true. |
static void |
setInvalidDataPolicy(QDomImplementation.InvalidDataPolicy policy)
Sets the invalid data policy, which specifies what should be done when a factory function in QDomDocument is passed invalid data. |
Methods inherited from class com.trolltech.qt.QtJambiObject |
---|
dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr |
Methods inherited from class com.trolltech.qt.QSignalEmitter |
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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 |
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public QDomImplementation()
QDomImplementation
object.
public QDomImplementation(QDomImplementation arg__1)
Method Detail |
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public final QDomDocument createDocument(java.lang.String nsURI, java.lang.String qName, QDomDocumentType doctype)
public final QDomDocumentType createDocumentType(java.lang.String qName, java.lang.String publicId, java.lang.String systemId)
publicId specifies the public identifier of the external subset. If you specify an empty string (QString()) as the publicId, this means that the document type has no public identifier.
systemId specifies the system identifier of the external subset. If you specify an empty string as the systemId, this means that the document type has no system identifier.
Since you cannot have a public identifier without a system identifier, the public identifier is set to an empty string if there is no system identifier.
DOM level 2 does not support any other document type declaration features.
The only way you can use a document type that was created this way, is in combination with the createDocument()
function to create a QDomDocument
with this document type.
In the DOM specification, this is the only way to create a non-null document. For historical reasons, Qt also allows to create the document using the default empty constructor. The resulting document is null, but becomes non-null when a factory function, for example QDomDocument::createElement()
, is called. The document also becomes non-null when setContent()
is called.
createDocument()
.
public final boolean hasFeature(java.lang.String feature, java.lang.String version)
QDom
implements the requested version of a feature; otherwise returns false. The currently supported features and their versions:
XML | 1.0 |
public final boolean isNull()
QDomDocument::implementation()
; otherwise returns true.
public static QDomImplementation.InvalidDataPolicy invalidDataPolicy()
QDomDocument
is passed invalid data. setInvalidDataPolicy()
, and InvalidDataPolicy
.
public static void setInvalidDataPolicy(QDomImplementation.InvalidDataPolicy policy)
QDomDocument
is passed invalid data. The policy is set for all instances of QDomDocument
which already exist and which will be created in the future.
QDomDocument doc = new QDomDocument(); QDomImplementation impl = new QDomImplementation(); // This will create the element, but the resulting XML document will // be invalid, because '~' is not a valid character in a tag name. impl.setInvalidDataPolicy(QDomImplementation.InvalidDataPolicy.AcceptInvalidChars); QDomElement elt1 = doc.createElement("foo~bar"); // This will create an element with the tag name "foobar". impl.setInvalidDataPolicy(QDomImplementation.InvalidDataPolicy.DropInvalidChars); QDomElement elt2 = doc.createElement("foo~bar"); // This will create a null element. impl.setInvalidDataPolicy(QDomImplementation.InvalidDataPolicy.ReturnNullNode); QDomElement elt3 = doc.createElement("foo~bar");
invalidDataPolicy()
, and InvalidDataPolicy
.
public QDomImplementation clone()
clone
in class java.lang.Object
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