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author | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
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committer | axis <qt-info@nokia.com> | 2009-04-24 11:34:15 (GMT) |
commit | 8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76 (patch) | |
tree | a17e1a767a89542ab59907462206d7dcf2e504b2 /doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp | |
download | Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.zip Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.gz Qt-8f427b2b914d5b575a4a7c0ed65d2fb8f45acc76.tar.bz2 |
Long live Qt for S60!
Diffstat (limited to 'doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp')
-rw-r--r-- | doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp b/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp new file mode 100644 index 0000000..76e1b34 --- /dev/null +++ b/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp @@ -0,0 +1,152 @@ +//! [0] + QXmlNamePool namePool(query.namePool()); + query.bindVariable(QXmlName(namePool, localName), value); +//! [0] + + +{ +//! [1] + QByteArray myDocument; + QBuffer buffer(&myDocument); // This is a QIODevice. + buffer.open(QIODevice::ReadOnly); + QXmlQuery query; + query.bindVariable("myDocument", &buffer); + query.setQuery("doc($myDocument)"); +//! [1] +} + + +{ + QIODevice *device = 0; +//! [2] + QXmlNamePool namePool(query.namePool()); + query.bindVariable(QXmlName(namePool, localName), device); +//! [2] + +} + +{ + QIODevice *myOutputDevice = 0; +//! [3] + QFile xq("myquery.xq"); + + QXmlQuery query; + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlSerializer serializer(query, myOutputDevice); + query.evaluateTo(&serializer); +//! [3] +} + +{ + QIODevice *myOutputDevice = 0; +//! [4] + QFile xq("myquery.xq"); + QString fileName("the filename"); + QString publisherName("the publisher"); + qlonglong year = 1234; + + QXmlQuery query; + + query.bindVariable("file", QVariant(fileName)); + query.bindVariable("publisher", QVariant(publisherName)); + query.bindVariable("year", QVariant(year)); + + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlSerializer serializer(query, myOutputDevice); + query.evaluateTo(&serializer); +//! [4] +} + +{ +//! [5] + QFile xq("myquery.xq"); + QString fileName("the filename"); + QString publisherName("the publisher"); + qlonglong year = 1234; + + QXmlQuery query; + + query.bindVariable("file", QVariant(fileName)); + query.bindVariable("publisher", QVariant(publisherName)); + query.bindVariable("year", QVariant(year)); + + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlResultItems result; + query.evaluateTo(&result); + QXmlItem item(result.next()); + while (!item.isNull()) { + if (item.isAtomicValue()) { + QVariant v = item.toAtomicValue(); + switch (v.type()) { + case QVariant::LongLong: + // xs:integer + break; + case QVariant::String: + // xs:string + break; + default: + // error + break; + } + } + else if (item.isNode()) { + QXmlNodeModelIndex i = item.toNodeModelIndex(); + // process node + } + item = result.next(); + } +//! [5] +} + +{ +//! [6] + QFile xq("myquery.xq"); + + QXmlQuery query; + query.setQuery(&xq, QUrl::fromLocalFile(xq.fileName())); + + QXmlResultItems result; + query.evaluateTo(&result); + QXmlItem item(result.next()); + while (!item.isNull()) { + if (item.isAtomicValue()) { + QVariant v = item.toAtomicValue(); + switch (v.type()) { + case QVariant::LongLong: + // xs:integer + break; + case QVariant::String: + // xs:string + break; + default: + if (v.userType() == qMetaTypeId<QXmlName>()) { + QXmlName n = qVariantValue<QXmlName>(v); + // process QXmlName n... + } + else { + // error + } + break; + } + } + else if (item.isNode()) { + QXmlNodeModelIndex i = item.toNodeModelIndex(); + // process node + } + item = result.next(); + } +//! [6] +} + +{ + QIODevice *out = 0; +//! [7] + QXmlQuery query(QXmlQuery::XSLT20); + query.setFocus(QUrl("myInput.xml")); + query.setQuery(QUrl("myStylesheet.xsl")); + query.evaluateTo(out); +//! [7] +} |