Qt Reference Documentation

# QtXmlPatterns Module

The QtXmlPatterns module provides support for XPath, XQuery, XSLT and XML Schema validation. More...

This documentation was introduced in Qt 4.4.

## Classes

QAbstractMessageHandler | Callback interface for handling messages
QAbstractUriResolver | Callback interface for resolving Uniform Resource Identifiers
QAbstractXmlNodeModel | Abstract base class for modeling non-XML data to look like XML for QXmlQuery
QAbstractXmlReceiver | Callback interface for transforming the output of a QXmlQuery
QSimpleXmlNodeModel | Implementation of QAbstractXmlNodeModel sufficient for many common cases
QSourceLocation | Identifies a location in a resource by URI, line, and column
QXmlFormatter | Implementation of QXmlSerializer for transforming XQuery output into formatted XML
QXmlItem | Contains either an XML node or an atomic value
QXmlName | Represents the name of an XML node, in an efficient, namespace-aware way
QXmlNamePool | Table of shared strings referenced by instances of QXmlName
QXmlNodeModelIndex | Identifies a node in an XML node model subclassed from QAbstractXmlNodeModel
QXmlQuery | Performs XQueries on XML data, or on non-XML data modeled to look like XML
QXmlResultItems | Iterates through the results of evaluating an XQuery in QXmlQuery
QXmlSchema | Loading and validation of a W3C XML Schema
QXmlSchemaValidator | Validates XML instance documents against a W3C XML Schema
QXmlSerializer | Implementation of QAbstractXmlReceiver for transforming XQuery output into unformatted XML

## Detailed Description

To include the definitions of the module's classes, use the following directive:

     #include <QtXmlPatterns>

To link against the module, add this line to your qmake `.pro` file:

     QT += xmlpatterns

## Further Reading

General overviews of XQuery and XSchema can be found in the XQuery document.

An introduction to the XQuery language can be found in A Short Path to XQuery.

## License Information

The XML Schema implementation provided by this module contains the `xml.xsd` file (located in `src/xmlpatterns/schema/schemas`) which is licensed under the terms given below. This module is always built with XML Schema support enabled.

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