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39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49
50#ifndef Patternist_ComparisonFactory_H
51#define Patternist_ComparisonFactory_H
52
53#include <private/qatomiccomparator_p.h>
54#include <private/qderivedstring_p.h>
55#include <private/qitem_p.h>
56#include <private/qreportcontext_p.h>
57#include <private/qschematype_p.h>
58
59QT_BEGIN_NAMESPACE
60
61namespace QPatternist
62{
63 /**
64 * @short Provides compare(), which is a high-level helper function for
65 * comparing atomic values.
66 *
67 * This class wraps the helper class ComparisonPlatform with a more specific,
68 * high-level API.
69 *
70 * @see ComparisonPlatform
71 * @author Frans Englich <frans.englich@nokia.com>
72 * @ingroup Patternist_schema
73 */
74 class ComparisonFactory
75 {
76 public:
77 /**
78 * @short Returns the result of evaluating operator @p op applied to the atomic
79 * values @p operand1 and @p operand2.
80 *
81 * The caller guarantees that both values are of type @p type.
82 *
83 * ComparisonFactory does not take ownership of @p sourceLocationReflection.
84 */
85 static bool compare(const AtomicValue::Ptr &operand1,
86 const AtomicComparator::Operator op,
87 const AtomicValue::Ptr &operand2,
88 const SchemaType::Ptr &type,
89 const ReportContext::Ptr &context,
90 const SourceLocationReflection *const sourceLocationReflection);
91
92 /**
93 * @short Returns the result of evaluating operator @p op applied to the atomic
94 * values @p operand1 and @p operand2.
95 *
96 * In opposite to compare() it converts the operands from string type
97 * to @p type and compares these constructed types.
98 *
99 * The caller guarantees that both values are of type @p type.
100 *
101 * ComparisonFactory does not take ownership of @p sourceLocationReflection.
102 */
103 static bool constructAndCompare(const DerivedString<TypeString>::Ptr &operand1,
104 const AtomicComparator::Operator op,
105 const DerivedString<TypeString>::Ptr &operand2,
106 const SchemaType::Ptr &type,
107 const ReportContext::Ptr &context,
108 const SourceLocationReflection *const sourceLocationReflection);
109
110 private:
111 Q_DISABLE_COPY(ComparisonFactory)
112 };
113}
114
115QT_END_NAMESPACE
116
117#endif
118

source code of qtxmlpatterns/src/xmlpatterns/data/qcomparisonfactory_p.h