QXmlSchemaValidator Class ReferenceThe QXmlSchemaValidator class validates XML instance documents against a W3C XML Schema. Далее... #include <QXmlSchemaValidator> Замечание: Все функции в этом классе реентерабельны. Этот класс был введён в Qt 4.6. Открытые функции
Подробное описаниеThe QXmlSchemaValidator class validates XML instance documents against a W3C XML Schema. The QXmlSchemaValidator class loads, parses an XML instance document and validates it against a W3C XML Schema that has been compiled with QXmlSchema. The following example shows how to load a XML Schema from a local file, check whether it is a valid schema document and use it for validation of an XML instance document: QUrl schemaUrl("file:///home/user/schema.xsd"); QXmlSchema schema; schema.load(schemaUrl); if (schema.isValid()) { QFile file("test.xml"); file.open(QIODevice::ReadOnly); QXmlSchemaValidator validator(schema); if (validator.validate(&file, QUrl::fromLocalFile(file.fileName()))) qDebug() << "instance document is valid"; else qDebug() << "instance document is invalid"; } XML Schema VersionThis class implements schema validation according to the XML Schema 1.0 specification. See also QXmlSchema and XML Schema Validation Example. Описание функций-членовQXmlSchemaValidator::QXmlSchemaValidator ()Constructs a schema validator. The schema used for validation must be referenced in the XML instance document via the xsi:schemaLocation or xsi:noNamespaceSchemaLocation attribute. QXmlSchemaValidator::QXmlSchemaValidator ( const QXmlSchema & schema )Constructs a schema validator that will use schema for validation. If an empty QXmlSchema schema is passed to the validator, the schema used for validation must be referenced in the XML instance document via the xsi:schemaLocation or xsi:noNamespaceSchemaLocation attribute. QXmlSchemaValidator::~QXmlSchemaValidator ()Destroys this QXmlSchemaValidator. QAbstractMessageHandler * QXmlSchemaValidator::messageHandler () constReturns the message handler that handles parsing and validation messages for this QXmlSchemaValidator. See also setMessageHandler(). QXmlNamePool QXmlSchemaValidator::namePool () constReturns the name pool used by this QXmlSchemaValidator for constructing names. There is no setter for the name pool, because mixing name pools causes errors due to name confusion. QNetworkAccessManager * QXmlSchemaValidator::networkAccessManager () constReturns the network manager, or 0 if it has not been set. See also setNetworkAccessManager(). QXmlSchema QXmlSchemaValidator::schema () constReturns the schema that is used for validation. See also setSchema(). void QXmlSchemaValidator::setMessageHandler ( QAbstractMessageHandler * handler )Changes the message handler for this QXmlSchemaValidator to handler. The schema validator sends all parsing and validation messages to this message handler. QXmlSchemaValidator does not take ownership of handler. Normally, the default message handler is sufficient. It writes compile and validation messages to stderr. The default message handler includes color codes if stderr can render colors. When QXmlSchemaValidator calls QAbstractMessageHandler::message(), the arguments are as follows:
See also messageHandler(). void QXmlSchemaValidator::setNetworkAccessManager ( QNetworkAccessManager * manager )Sets the network manager to manager. QXmlSchemaValidator does not take ownership of manager. See also networkAccessManager(). void QXmlSchemaValidator::setSchema ( const QXmlSchema & schema )Sets the schema that shall be used for further validation. If the schema is empty, the schema used for validation must be referenced in the XML instance document via the xsi:schemaLocation or xsi:noNamespaceSchemaLocation attribute. See also schema(). void QXmlSchemaValidator::setUriResolver ( const QAbstractUriResolver * resolver )Sets the URI resolver to resolver. QXmlSchemaValidator does not take ownership of resolver. See also uriResolver(). const QAbstractUriResolver * QXmlSchemaValidator::uriResolver () constReturns the schema's URI resolver. If no URI resolver has been set, QtXmlPatterns will use the URIs in instance documents as they are. The URI resolver provides a level of abstraction, or polymorphic URIs. A resolver can rewrite logical URIs to physical ones, or it can translate obsolete or invalid URIs to valid ones. When QtXmlPatterns calls QAbstractUriResolver::resolve() the absolute URI is the URI mandated by the schema specification, and the relative URI is the URI specified by the user. See also setUriResolver(). bool QXmlSchemaValidator::validate ( const QUrl & source ) constValidates the XML instance document read from source against the schema. Returns true if the XML instance document is valid according to the schema, false otherwise. Пример: const QXmlSchema schema = getSchema(); const QUrl url("http://www.schema-example.org/test.xml"); QXmlSchemaValidator validator(schema); if (validator.validate(url)) qDebug() << "instance document is valid"; else qDebug() << "instance document is invalid"; bool QXmlSchemaValidator::validate ( QIODevice * source, const QUrl & documentUri = QUrl() ) constValidates the XML instance document read from source with the given documentUri against the schema. Returns true if the XML instance document is valid according to the schema, false otherwise. Пример: const QXmlSchema schema = getSchema(); QFile file("test.xml"); file.open(QIODevice::ReadOnly); QXmlSchemaValidator validator(schema); if (validator.validate(&file, QUrl::fromLocalFile(file.fileName()))) qDebug() << "instance document is valid"; else qDebug() << "instance document is invalid"; bool QXmlSchemaValidator::validate ( const QByteArray & data, const QUrl & documentUri = QUrl() ) constValidates the XML instance document read from data with the given documentUri against the schema. Returns true if the XML instance document is valid according to the schema, false otherwise. Пример: const QXmlSchema schema = getSchema(); QByteArray data(" |
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