aboutsummaryrefslogtreecommitdiffstats
path: root/doc/codesnippets/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp')
-rw-r--r--doc/codesnippets/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp152
1 files changed, 152 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp b/doc/codesnippets/doc/src/snippets/code/src_xmlpatterns_api_qxmlquery.cpp
new file mode 100644
index 000000000..76e1b34de
--- /dev/null
+++ b/doc/codesnippets/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]
+}