1 /*
2   Copyright(C) 2016 Brazil
3   Copyright(C) 2019 Kouhei Sutou <kou@clear-code.com>
4 
5   This library is free software; you can redistribute it and/or
6   modify it under the terms of the GNU Lesser General Public
7   License version 2.1 as published by the Free Software Foundation.
8 
9   This library is distributed in the hope that it will be useful,
10   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12   Lesser General Public License for more details.
13 
14   You should have received a copy of the GNU Lesser General Public
15   License along with this library; if not, write to the Free Software
16   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
17 */
18 module groonga_d.window_function;
19 
20 
21 private static import groonga_d.groonga;
22 
23 extern(C):
24 nothrow @nogc:
25 
26 enum grn_window_direction
27 {
28 	GRN_WINDOW_DIRECTION_ASCENDING,
29 	GRN_WINDOW_DIRECTION_DESCENDING,
30 }
31 
32 extern struct _grn_window;
33 alias grn_window = _grn_window;
34 
35 //GRN_API
36 uint grn_window_next(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
37 
38 //GRN_API
39 groonga_d.groonga.grn_rc grn_window_rewind(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
40 
41 //GRN_API
42 groonga_d.groonga.grn_rc grn_window_set_direction(groonga_d.groonga.grn_ctx* ctx, grn_window* window, grn_window_direction direction);
43 
44 //GRN_API
45 groonga_d.groonga.grn_obj* grn_window_get_table(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
46 
47 //GRN_API
48 bool grn_window_is_context_table(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
49 
50 //GRN_API
51 groonga_d.groonga.grn_obj* grn_window_get_output_column(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
52 
53 //GRN_API
54 size_t grn_window_get_n_arguments(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
55 
56 //GRN_API
57 groonga_d.groonga.grn_obj* grn_window_get_argument(groonga_d.groonga.grn_ctx* ctx, grn_window* window, size_t i);
58 
59 //GRN_API
60 bool grn_window_is_sorted(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
61 
62 
63 //GRN_API
64 ubyte grn_window_is_sorted(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
65 
66 //GRN_API
67 size_t grn_window_get_size(groonga_d.groonga.grn_ctx* ctx, grn_window* window);
68 
69 struct grn_window_definition
70 {
71 	groonga_d.table.grn_table_sort_key* sort_keys;
72 	size_t n_sort_keys;
73 	groonga_d.table.grn_table_sort_key* group_keys;
74 	size_t n_group_keys;
75 }
76 
77 alias _grn_window_definition = grn_window_definition;
78 
79 //typedef groonga_d.groonga.grn_rc grn_window_function_func(groonga_d.groonga.grn_ctx* ctx, groonga_d.groonga.grn_obj* first_output_column, grn_window* window, groonga_d.groonga.grn_obj** first_args, int first_n_args);
80 alias grn_window_function_func = extern (C) nothrow @nogc groonga_d.groonga.grn_rc function(groonga_d.groonga.grn_ctx* ctx, groonga_d.groonga.grn_obj* first_output_column, grn_window* window, groonga_d.groonga.grn_obj** first_args, int first_n_args);
81 
82 //GRN_API
83 groonga_d.groonga.grn_obj* grn_window_function_create(groonga_d.groonga.grn_ctx* ctx, const (char)* name, int name_size, grn_window_function_func func);
84 
85 /* Deprecated since 9.0.2.
86    Use grn_window_function_executor() instead. */
87 //GRN_API
88 deprecated
89 groonga_d.groonga.grn_rc grn_table_apply_window_function(groonga_d.groonga.grn_ctx* ctx, groonga_d.groonga.grn_obj* table, groonga_d.groonga.grn_obj* output_column, grn_window_definition* definition, groonga_d.groonga.grn_obj* window_function_call);