Accueil Actualités IT Pro
Conception Cycle de vie du logiciel
- Conception
- UML
- Merise
Java Plateforme et langage Java
- Java
- Spring
- Dév. Web Java
- Android
- Eclipse
- NetBeans
.NET Microsoft Framework .NET
Dév. Web Développement Web et Webmarketing
- Développement Web
- AJAX
- Apache
- ASP
- CSS
- Flash / Flex
- JavaScript
- PHP
- Ruby & Rails
- Web sémantique
- Webmarketing
- (X)HTML
EDI Environnements de Développement Intégré
- EDI
- 4D
- Delphi
- Eclipse
- LabVIEW
- NetBeans
- MATLAB
- Visual Studio
- WinDev
- Visual Basic 6
- Lazarus
- Qt Creator
Langages Langages de programmation applicatifs
- Langages
- Assembleur
- C
- C++
- C#
- Pascal
- Perl
- Python
- Visual Basic 6
- VB.NET
- XML
- Autres
SGBD Systèmes de Gestion de Bases de Données
- SGBD & SQL
- 4D
- Access
- DB2
- Firebird
- InterBase
- MySQL
- Oracle
- PostgreSQL
- SQL-Server
- Sybase
Office Bureautique pour l'entreprise
- Microsoft Office
- Access
- Excel
- Word
- Outlook
- PowerPoint
- SharePoint
- Microsoft Project
Solutions d'entreprise Autres logiciels pour l'entreprise
Applications Applications logicielles
Systèmes Logiciels et matériels systèmes
- Systèmes
- Windows
- Linux Professionnel
- Sécurité
- PC
- Mac
- Réseau
- Mobiles
- Green IT
- Virtualisation

Accueil Qt
Forum Qt
FAQ Qt
Doc Qt
Tutoriels Qt
Outils Qt
Sources Qt
Livres Qt
Blog Qt
Qt TV
PyQt & PySide

· Page d'accueil · Toutes les classes · Classes principales · Annotées · Classes groupées · Modules · Fonctions ·

QXmlSerializer Class

The QXmlSerializer class is an implementation of QAbstractXmlReceiver for transforming XQuery output into unformatted XML. More...

 #include <QXmlSerializer>

Inherits: QAbstractXmlReceiver.

Inherited by: QXmlFormatter.

Note: All functions in this class are reentrant.

This class was introduced in Qt 4.4.

List of all members, including inherited members

Public Functions

	QAbstractXmlReceiver()
	QXmlSerializer(const QXmlQuery & query, QIODevice * outputDevice)
virtual	~QAbstractXmlReceiver()
virtual void	atomicValue(const QVariant & value) = 0
virtual void	attribute(const QXmlName & name, const QStringRef & value) = 0
virtual void	characters(const QStringRef & value) = 0
const QTextCodec *	codec() const
virtual void	comment(const QString & value) = 0
virtual void	endDocument() = 0
virtual void	endElement() = 0
virtual void	endOfSequence() = 0
virtual void	namespaceBinding(const QXmlName & name) = 0
QIODevice *	outputDevice() const
virtual void	processingInstruction(const QXmlName & target, const QString & value) = 0
void	setCodec(const QTextCodec * outputCodec)
virtual void	startDocument() = 0
virtual void	startElement(const QXmlName & name) = 0
virtual void	startOfSequence() = 0

Reimplemented Public Functions

virtual void	atomicValue(const QVariant & value)
virtual void	attribute(const QXmlName & name, const QStringRef & value)
virtual void	characters(const QStringRef & value)
virtual void	comment(const QString & value)
virtual void	endDocument()
virtual void	endElement()
virtual void	endOfSequence()
virtual void	namespaceBinding(const QXmlName & nb)
virtual void	processingInstruction(const QXmlName & name, const QString & value)
virtual void	startDocument()
virtual void	startElement(const QXmlName & name)
virtual void	startOfSequence()

Detailed Description

The QXmlSerializer class is an implementation of QAbstractXmlReceiver for transforming XQuery output into unformatted XML.

QXmlSerializer translates an XQuery sequence, usually the output of an QXmlQuery, into XML. Consider the example:

First it constructs a query that gets the first paragraph from document index.html. Then it constructs an instance of this class with the query and myOutputDevice. Finally, it evaluates the query, producing an ordered sequence of calls to the serializer's callback functions. The sequence of callbacks transforms the query output to XML and writes it to myOutputDevice.

QXmlSerializer will:

Declare namespaces when needed,
Use appropriate escaping, when characters can't be represented in the XML,
Handle line endings appropriately,
Report errors, when it can't serialize the content, e.g., when asked to serialize an attribute that is a top-level node, or when more than one top-level element is encountered.

If an error occurs during serialization, result is undefined unless the serializer is driven through a call to QXmlQuery::evaluateTo().

If the generated XML should be indented and formatted for reading, use QXmlFormatter.

Member Function Documentation

QXmlSerializer::QXmlSerializer(const QXmlQuery & query, QIODevice * outputDevice)

Constructs a serializer that uses the name pool and message handler in query, and writes the output to outputDevice.

outputDevice must be a valid, non-null device that is open in write mode, otherwise behavior is undefined.

outputDevice must not be opened with QIODevice::Text because it will cause the output to be incorrect. This class will ensure line endings are serialized as according with the XML specification. QXmlSerializer does not take ownership of outputDevice.

void QXmlSerializer::atomicValue(const QVariant & value) `[virtual]`

Reimplemented from QAbstractXmlReceiver::atomicValue().

void QXmlSerializer::attribute(const QXmlName & name, const QStringRef & value) `[virtual]`

Reimplemented from QAbstractXmlReceiver::attribute().

void QXmlSerializer::characters(const QStringRef & value) `[virtual]`

Reimplemented from QAbstractXmlReceiver::characters().

const QTextCodec * QXmlSerializer::codec() const

Returns the codec being used by the serializer for encoding its XML output.

See also setCodec().

QIODevice * QXmlSerializer::outputDevice() const

Returns a pointer to the output device. There is no corresponding function to set the output device, because the output device must be passed to the constructor. The serializer does not take ownership of its IO device.

void QXmlSerializer::processingInstruction(const QXmlName & name, const QString & value) `[virtual]`

Reimplemented from QAbstractXmlReceiver::processingInstruction().

void QXmlSerializer::setCodec(const QTextCodec * outputCodec)

Sets the codec the serializer will use for encoding its XML output. The output codec is set to outputCodec. By default, the output codec is set to the one for UTF-8. The serializer does not take ownership of the codec.

See also codec().

void QXmlSerializer::startDocument() `[virtual]`

Reimplemented from QAbstractXmlReceiver::startDocument().

void QXmlSerializer::startElement(const QXmlName & name) `[virtual]`

Reimplemented from QAbstractXmlReceiver::startElement().

void QXmlSerializer::startOfSequence() `[virtual]`

Reimplemented from QAbstractXmlReceiver::startOfSequence().

The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation.

Documentation sources may be obtained from www.qt-project.org.

Nokia, Qt and their respective logos are trademarks of Nokia Corporation in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. Privacy Policy

Cette page est une traduction d'une page de la documentation de Qt, écrite par Nokia Corporation and/or its subsidiary(-ies). Les éventuels problèmes résultant d'une mauvaise traduction ne sont pas imputables à Nokia.	Qt 5.0-snapshot
Copyright © 2012 Developpez LLC. Tous droits réservés Developpez LLC. Aucune reproduction, même partielle, ne peut être faite de ce site et de l'ensemble de son contenu : textes, documents et images sans l'autorisation expresse de Developpez LLC. Sinon, vous encourez selon la loi jusqu'à 3 ans de prison et jusqu'à 300 000 E de dommages et intérêts. Cette page est déposée à la SACD.
Vous avez déniché une erreur ? Un bug ? Une redirection cassée ? Ou tout autre problème, quel qu'il soit ? Ou bien vous désirez participer à ce projet de traduction ? N'hésitez pas à nous contacter ou par MP !