87 lines
2.2 KiB
C
87 lines
2.2 KiB
C
/*
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Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
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#ifndef TRIGGER_DEF_H_INCLUDED
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#define TRIGGER_DEF_H_INCLUDED
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///////////////////////////////////////////////////////////////////////////
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/**
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@file
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@brief
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This file defines all base public constants related to triggers in MySQL.
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*/
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///////////////////////////////////////////////////////////////////////////
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/**
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Constants to enumerate possible event types on which triggers can be fired.
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*/
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enum enum_trigger_event_type
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{
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TRG_EVENT_INSERT= 0,
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TRG_EVENT_UPDATE= 1,
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TRG_EVENT_DELETE= 2,
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TRG_EVENT_MAX
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};
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/**
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Constants to enumerate possible timings when triggers can be fired.
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*/
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enum enum_trigger_action_time_type
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{
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TRG_ACTION_BEFORE= 0,
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TRG_ACTION_AFTER= 1,
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TRG_ACTION_MAX
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};
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/**
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Possible trigger ordering clause values:
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- TRG_ORDER_NONE -- trigger ordering clause is not specified
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- TRG_ORDER_FOLLOWS -- FOLLOWS clause
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- TRG_ORDER_PRECEDES -- PRECEDES clause
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*/
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enum enum_trigger_order_type
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{
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TRG_ORDER_NONE= 0,
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TRG_ORDER_FOLLOWS= 1,
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TRG_ORDER_PRECEDES= 2
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};
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/**
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Enum constants to designate NEW and OLD trigger pseudo-variables.
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*/
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enum enum_trigger_variable_type
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{
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TRG_OLD_ROW,
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TRG_NEW_ROW
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};
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///////////////////////////////////////////////////////////////////////////
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/*
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The following constants are defined in trigger_loader.cc.
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They would be private to Trigger_loader if we didn't have handler.
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*/
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extern const char * const TRG_EXT;
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extern const char * const TRN_EXT;
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///////////////////////////////////////////////////////////////////////////
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#endif // TRIGGER_DEF_H_INCLUDED
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