--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/xmlpatterns/api/qxmlresultitems.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qxmlresultitems.h"
+#include "qxmlresultitems_p.h"
+#include "qitem_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+  \class QXmlResultItems
+  \brief The QXmlResultItems class iterates through the results of evaluating an XQuery in QXmlQuery.
+  \reentrant
+  \since 4.4
+  \ingroup xml-tools
+
+  QXmlResultItems presents the evaluation of an associated query as a
+  sequence of \l{QXmlItem}{QXmlItems}. The sequence is traversed by
+  repeatedly calling next(), which actually produces the sequence by
+  lazy evaluation of the query.
+
+  \snippet doc/src/snippets/code/src_xmlpatterns_api_qxmlresultitems.cpp 0
+
+  An effect of letting next() produce the sequence by lazy evaluation
+  is that a query error can occur on any call to next(). If an error
+  occurs, both next() and current() will return the null QXmlItem, and
+  hasError() will return true.
+
+  QXmlResultItems can be thought of as an "iterator" that traverses
+  the sequence of query results once, in the forward direction. Each
+  call to next() advances the iterator to the next QXmlItem in the
+  sequence and returns it, and current() always returns the QXmlItem
+  that next() returned the last time it was called.
+
+  \sa QXmlItem::isNode(), QXmlItem::isAtomicValue(), QXmlNodeModelIndex
+ */
+
+/*!
+  Constructs an instance of QXmlResultItems.
+ */
+QXmlResultItems::QXmlResultItems() : d_ptr(new QXmlResultItemsPrivate())
+{
+}
+
+/*!
+  Destroys this instance of QXmlResultItems.
+ */
+QXmlResultItems::~QXmlResultItems()
+{
+}
+
+/*!
+  Returns the next result in the sequence produced by lazy evaluation
+  of the associated query. When the returned QXmlItem is null, either
+  the evaluation terminated normally without producing another result,
+  or an error occurred. Call hasError() to determine whether the null
+  item was caused by normal termination or by an error.
+
+  Returns a null QXmlItem if there is no associated QXmlQuery.
+ */
+QXmlItem QXmlResultItems::next()
+{
+    Q_D(QXmlResultItems);
+    if(d->hasError)
+        return QXmlItem();
+
+    try
+    {
+        d->current = QPatternist::Item::toPublic(d->iterator->next());
+        return d->current;
+    }
+    catch(const QPatternist::Exception)
+    {
+        d->current = QXmlItem();
+        d->hasError = true;
+        return QXmlItem();
+    }
+}
+
+/*!
+  Returns the current item. The current item is the last item
+  that was produced and returned by next().
+
+  Returns a null QXmlItem if there is no associated QXmlQuery.
+ */
+QXmlItem QXmlResultItems::current() const
+{
+    Q_D(const QXmlResultItems);
+
+    if(d->hasError)
+        return QXmlItem();
+    else
+        return d->current;
+}
+
+/*!
+
+  If an error occurred during evaluation of the query, true is
+  returned.
+
+  Returns false if query evaluation has been done.
+ */
+bool QXmlResultItems::hasError() const
+{
+    Q_D(const QXmlResultItems);
+    return d->hasError;
+}
+
+QT_END_NAMESPACE
+