1 /****************************************************************************
3 ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** No Commercial Usage
11 ** This file contains pre-release code and may not be distributed.
12 ** You may use this file in accordance with the terms and conditions
13 ** contained in the Technology Preview License Agreement accompanying
16 ** GNU Lesser General Public License Usage
17 ** Alternatively, this file may be used under the terms of the GNU Lesser
18 ** General Public License version 2.1 as published by the Free Software
19 ** Foundation and appearing in the file LICENSE.LGPL included in the
20 ** packaging of this file. Please review the following information to
21 ** ensure the GNU Lesser General Public License version 2.1 requirements
22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
24 ** In addition, as a special exception, Nokia gives you certain additional
25 ** rights. These rights are described in the Nokia Qt LGPL Exception
26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
28 ** If you have questions regarding the use of this file, please contact
29 ** Nokia at qt-info@nokia.com.
40 ****************************************************************************/
46 // This file is not part of the Qt API. It exists purely as an
47 // implementation detail. This header file may change from version to
48 // version without notice, or even be removed.
52 #ifndef Patternist_ComparisonFactory_H
53 #define Patternist_ComparisonFactory_H
55 #include "qatomiccomparator_p.h"
56 #include "qderivedstring_p.h"
58 #include "qreportcontext_p.h"
59 #include "qschematype_p.h"
67 * @short Provides compare(), which is a high-level helper function for
68 * comparing atomic values.
70 * This class wraps the helper class ComparisonPlatform with a more specific,
73 * @see ComparisonPlatform
74 * @author Frans Englich <frans.englich@nokia.com>
75 * @ingroup Patternist_schema
77 class ComparisonFactory
81 * @short Returns the result of evaluating operator @p op applied to the atomic
82 * values @p operand1 and @p operand2.
84 * The caller guarantees that both values are of type @p type.
86 * ComparisonFactory does not take ownership of @p sourceLocationReflection.
88 static bool compare(const AtomicValue::Ptr &operand1,
89 const AtomicComparator::Operator op,
90 const AtomicValue::Ptr &operand2,
91 const SchemaType::Ptr &type,
92 const ReportContext::Ptr &context,
93 const SourceLocationReflection *const sourceLocationReflection);
96 * @short Returns the result of evaluating operator @p op applied to the atomic
97 * values @p operand1 and @p operand2.
99 * In opposite to compare() it converts the operands from string type
100 * to @p type and compares these constructed types.
102 * The caller guarantees that both values are of type @p type.
104 * ComparisonFactory does not take ownership of @p sourceLocationReflection.
106 static bool constructAndCompare(const DerivedString<TypeString>::Ptr &operand1,
107 const AtomicComparator::Operator op,
108 const DerivedString<TypeString>::Ptr &operand2,
109 const SchemaType::Ptr &type,
110 const ReportContext::Ptr &context,
111 const SourceLocationReflection *const sourceLocationReflection);
114 Q_DISABLE_COPY(ComparisonFactory)