diff options
Diffstat (limited to 'lib/filter.h')
-rw-r--r-- | lib/filter.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/lib/filter.h b/lib/filter.h new file mode 100644 index 0000000..d213d7a --- /dev/null +++ b/lib/filter.h | |||
@@ -0,0 +1,143 @@ | |||
1 | #ifndef FILTER_H_932BA9C6 | ||
2 | #define FILTER_H_932BA9C6 | ||
3 | |||
4 | #include <list> | ||
5 | #include <string> | ||
6 | #include <memory> | ||
7 | #include "field.h" | ||
8 | #include "enums.h" | ||
9 | |||
10 | namespace verbly { | ||
11 | |||
12 | class filter { | ||
13 | public: | ||
14 | enum class type { | ||
15 | empty, | ||
16 | singleton, | ||
17 | group | ||
18 | }; | ||
19 | |||
20 | enum class comparison { | ||
21 | int_equals, | ||
22 | int_does_not_equal, | ||
23 | int_is_at_least, | ||
24 | int_is_greater_than, | ||
25 | int_is_at_most, | ||
26 | int_is_less_than, | ||
27 | boolean_equals, | ||
28 | string_equals, | ||
29 | string_does_not_equal, | ||
30 | string_is_like, | ||
31 | string_is_not_like, | ||
32 | is_null, | ||
33 | is_not_null, | ||
34 | matches, | ||
35 | does_not_match, | ||
36 | hierarchally_matches, | ||
37 | does_not_hierarchally_match | ||
38 | }; | ||
39 | |||
40 | // Copy and move constructors | ||
41 | |||
42 | filter(const filter& other); | ||
43 | filter(filter&& other); | ||
44 | |||
45 | // Assignment | ||
46 | |||
47 | filter& operator=(filter other); | ||
48 | |||
49 | // Swap | ||
50 | |||
51 | friend void swap(filter& first, filter& second); | ||
52 | |||
53 | // Destructor | ||
54 | |||
55 | ~filter(); | ||
56 | |||
57 | // Accessors | ||
58 | |||
59 | type getType() const | ||
60 | { | ||
61 | return type_; | ||
62 | } | ||
63 | |||
64 | // Empty | ||
65 | |||
66 | filter(); | ||
67 | |||
68 | // Singleton | ||
69 | |||
70 | filter(field filterField, comparison filterType, int filterValue); | ||
71 | filter(field filterField, comparison filterType, std::string filterValue); | ||
72 | filter(field filterField, comparison filterType, bool filterValue); | ||
73 | filter(field filterField, comparison filterType); | ||
74 | filter(field joinOn, comparison filterType, filter joinCondition); | ||
75 | |||
76 | field getField() const; | ||
77 | |||
78 | comparison getComparison() const; | ||
79 | |||
80 | filter getJoinCondition() const; | ||
81 | |||
82 | std::string getStringArgument() const; | ||
83 | |||
84 | int getIntegerArgument() const; | ||
85 | |||
86 | bool getBooleanArgument() const; | ||
87 | |||
88 | // Group | ||
89 | |||
90 | explicit filter(bool orlogic); | ||
91 | |||
92 | bool getOrlogic() const; | ||
93 | |||
94 | filter operator+(filter condition) const; | ||
95 | |||
96 | filter& operator+=(filter condition); | ||
97 | |||
98 | using const_iterator = std::list<filter>::const_iterator; | ||
99 | |||
100 | const_iterator begin() const; | ||
101 | |||
102 | const_iterator end() const; | ||
103 | |||
104 | // Negation | ||
105 | |||
106 | filter operator!() const; | ||
107 | |||
108 | // Groupifying | ||
109 | |||
110 | filter operator&&(filter condition) const; | ||
111 | filter operator||(filter condition) const; | ||
112 | |||
113 | filter& operator&=(filter condition); | ||
114 | filter& operator|=(filter condition); | ||
115 | |||
116 | // Utility | ||
117 | |||
118 | filter normalize(object context) const; | ||
119 | |||
120 | private: | ||
121 | union { | ||
122 | struct { | ||
123 | field filterField; | ||
124 | comparison filterType; | ||
125 | union { | ||
126 | std::unique_ptr<filter> join; | ||
127 | std::string stringValue; | ||
128 | int intValue; | ||
129 | bool boolValue; | ||
130 | }; | ||
131 | } singleton_; | ||
132 | struct { | ||
133 | std::list<filter> children; | ||
134 | bool orlogic; | ||
135 | } group_; | ||
136 | }; | ||
137 | type type_ = type::empty; | ||
138 | |||
139 | }; | ||
140 | |||
141 | }; | ||
142 | |||
143 | #endif /* end of include guard: FILTER_H_932BA9C6 */ | ||