1 /* 2 Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License, version 2.0, 6 as published by the Free Software Foundation. 7 8 This program is also distributed with certain software (including 9 but not limited to OpenSSL) that is licensed under separate terms, 10 as designated in a particular file or component or in included license 11 documentation. The authors of MySQL hereby grant you an additional 12 permission to link the program and your derivative works with the 13 separately licensed software that they have included with MySQL. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License, version 2.0, for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software Foundation, 22 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */ 23 24 #ifndef TRIGGER_DEF_H_INCLUDED 25 #define TRIGGER_DEF_H_INCLUDED 26 27 /////////////////////////////////////////////////////////////////////////// 28 29 /** 30 @file 31 32 @brief 33 This file defines all base public constants related to triggers in MySQL. 34 */ 35 36 /////////////////////////////////////////////////////////////////////////// 37 38 /** 39 Constants to enumerate possible event types on which triggers can be fired. 40 */ 41 enum enum_trigger_event_type 42 { 43 TRG_EVENT_INSERT= 0, 44 TRG_EVENT_UPDATE= 1, 45 TRG_EVENT_DELETE= 2, 46 TRG_EVENT_MAX 47 }; 48 49 /** 50 Constants to enumerate possible timings when triggers can be fired. 51 */ 52 enum enum_trigger_action_time_type 53 { 54 TRG_ACTION_BEFORE= 0, 55 TRG_ACTION_AFTER= 1, 56 TRG_ACTION_MAX 57 }; 58 59 /** 60 Possible trigger ordering clause values: 61 - TRG_ORDER_NONE -- trigger ordering clause is not specified 62 - TRG_ORDER_FOLLOWS -- FOLLOWS clause 63 - TRG_ORDER_PRECEDES -- PRECEDES clause 64 */ 65 enum enum_trigger_order_type 66 { 67 TRG_ORDER_NONE= 0, 68 TRG_ORDER_FOLLOWS= 1, 69 TRG_ORDER_PRECEDES= 2 70 }; 71 72 /** 73 Enum constants to designate NEW and OLD trigger pseudo-variables. 74 */ 75 enum enum_trigger_variable_type 76 { 77 TRG_OLD_ROW, 78 TRG_NEW_ROW 79 }; 80 81 /////////////////////////////////////////////////////////////////////////// 82 83 /* 84 The following constants are defined in trigger_loader.cc. 85 They would be private to Trigger_loader if we didn't have handler. 86 */ 87 88 extern const char * const TRG_EXT; 89 extern const char * const TRN_EXT; 90 91 /////////////////////////////////////////////////////////////////////////// 92 93 #endif // TRIGGER_DEF_H_INCLUDED 94