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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Messaging Framework.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\class QMailKeyArgument
\preliminary
\brief The QMailKeyArgument class template defines a class representing a single criterion
to be applied when filtering the QMailStore constent with a key object.
\ingroup messaginglibrary
A QMailKeyArgument\<PropertyType, ComparatorType\> is composed of a property indicator,
a comparison operator and a value or set of values to compare with. The type of the
property indicator depends on the type that is to be filtered.
*/
/*!
\typedef QMailKeyArgument::Property
Defines the type used to represent the property that the criterion is applied to.
A synomyn for the PropertyType template parameter with which the template is instantiated.
*/
/*!
\typedef QMailKeyArgument::Comparator
Defines the type used to represent the comparison operation that the criterion requires.
A synomyn for the ComparatorType template parameter with which the template is instantiated; defaults to QMailDataComparator::Comparator.
*/
/*!
\variable QMailKeyArgument::property
Indicates the property of the filtered entity to be compared.
*/
/*!
\variable QMailKeyArgument::op
Indicates the comparison operation to be used when filtering entities.
*/
/*!
\variable QMailKeyArgument::valueList
Contains the values to be compared with when filtering entities.
*/
/*!
\fn QMailKeyArgument::QMailKeyArgument()
\internal
*/
/*!
\class QMailKeyArgument::ValueList
\ingroup messaginglibrary
\brief The ValueList class provides a list of variant values that can be serialized to a stream, and compared.
The ValueList class inherits from QVariantList.
\sa QVariantList
*/
/*!
\fn bool QMailKeyArgument::ValueList::operator==(const ValueList &other) const
Returns true if this list and \a other contain equivalent values.
*/
/*!
\fn void QMailKeyArgument::ValueList::serialize(Stream &stream) const
Writes the contents of a ValueList to \a stream.
*/
/*!
\fn void QMailKeyArgument::ValueList::deserialize(Stream &stream)
Reads the contents of a ValueList from \a stream.
*/
/*!
\fn QMailKeyArgument::QMailKeyArgument(Property p, Comparator c, const QVariant& v)
Creates a criterion testing the property \a p against the value \a v, using the comparison operator \a c.
*/
/*!
\fn QMailKeyArgument::QMailKeyArgument(const ListType& l, Property p, Comparator c)
Creates a criterion testing the property \a p against the value list \a l, using the comparison operator \a c.
*/
/*!
\fn bool QMailKeyArgument::operator==(const QMailKeyArgument<PropertyType, ComparatorType>& other) const
\internal
*/
/*!
\fn void QMailKeyArgument::serialize(Stream &stream) const
Writes the contents of a QMailKeyArgument to \a stream.
*/
/*!
\fn void QMailKeyArgument::deserialize(Stream &stream)
Reads the contents of a QMailKeyArgument from \a stream.
*/
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