1 #ifndef _EVENT_DB_REPOSITORY_H_
2 #define _EVENT_DB_REPOSITORY_H_
3 
4 /*
5    Copyright (c) 2006, 2011, Oracle and/or its affiliates. All rights reserved.
6 
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; version 2 of the License.
10 
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with this program; if not, write to the Free Software
18    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
19 */
20 
21 /**
22   @addtogroup Event_Scheduler
23   @{
24 
25   @file event_db_repository.h
26 
27   Data Dictionary related operations of Event Scheduler.
28 
29   This is a private header file of Events module. Please do not include it
30   directly. All public declarations of Events module should be stored in
31   events.h and event_data_objects.h.
32 */
33 
34 enum enum_events_table_field
35 {
36   ET_FIELD_DB = 0,
37   ET_FIELD_NAME,
38   ET_FIELD_BODY,
39   ET_FIELD_DEFINER,
40   ET_FIELD_EXECUTE_AT,
41   ET_FIELD_INTERVAL_EXPR,
42   ET_FIELD_TRANSIENT_INTERVAL,
43   ET_FIELD_CREATED,
44   ET_FIELD_MODIFIED,
45   ET_FIELD_LAST_EXECUTED,
46   ET_FIELD_STARTS,
47   ET_FIELD_ENDS,
48   ET_FIELD_STATUS,
49   ET_FIELD_ON_COMPLETION,
50   ET_FIELD_SQL_MODE,
51   ET_FIELD_COMMENT,
52   ET_FIELD_ORIGINATOR,
53   ET_FIELD_TIME_ZONE,
54   ET_FIELD_CHARACTER_SET_CLIENT,
55   ET_FIELD_COLLATION_CONNECTION,
56   ET_FIELD_DB_COLLATION,
57   ET_FIELD_BODY_UTF8,
58   ET_FIELD_COUNT /* a cool trick to count the number of fields :) */
59 };
60 
61 
62 int
63 events_table_index_read_for_db(THD *thd, TABLE *schema_table,
64                                TABLE *event_table);
65 
66 int
67 events_table_scan_all(THD *thd, TABLE *schema_table, TABLE *event_table);
68 
69 
70 class Event_basic;
71 class Event_parse_data;
72 
73 class Event_db_repository
74 {
75 public:
Event_db_repository()76   Event_db_repository(){}
77 
78   bool
79   create_event(THD *thd, Event_parse_data *parse_data, bool create_if_not,
80                bool *event_already_exists);
81 
82   bool
83   update_event(THD *thd, Event_parse_data *parse_data, LEX_STRING *new_dbname,
84                LEX_STRING *new_name);
85 
86   bool
87   drop_event(THD *thd, LEX_STRING db, LEX_STRING name, bool drop_if_exists);
88 
89   void
90   drop_schema_events(THD *thd, LEX_STRING schema);
91 
92   bool
93   find_named_event(LEX_STRING db, LEX_STRING name, TABLE *table);
94 
95   bool
96   load_named_event(THD *thd, LEX_STRING dbname, LEX_STRING name, Event_basic *et);
97 
98   static bool
99   open_event_table(THD *thd, enum thr_lock_type lock_type, TABLE **table);
100 
101   bool
102   fill_schema_events(THD *thd, TABLE_LIST *tables, const char *db);
103 
104   bool
105   update_timing_fields_for_event(THD *thd,
106                                  LEX_STRING event_db_name,
107                                  LEX_STRING event_name,
108                                  my_time_t last_executed,
109                                  ulonglong status);
110 public:
111   static bool
112   check_system_tables(THD *thd);
113 private:
114   bool
115   index_read_for_db_for_i_s(THD *thd, TABLE *schema_table, TABLE *event_table,
116                             const char *db);
117 
118   bool
119   table_scan_all_for_i_s(THD *thd, TABLE *schema_table, TABLE *event_table);
120 
121 private:
122   /* Prevent use of these */
123   Event_db_repository(const Event_db_repository &);
124   void operator=(Event_db_repository &);
125 };
126 
127 /**
128   @} (End of group Event_Scheduler)
129 */
130 #endif /* _EVENT_DB_REPOSITORY_H_ */
131