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100 lines
3.4 KiB
100 lines
3.4 KiB
5 months ago
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/*
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Copyright (c) 2016, 2017, 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, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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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, version 2.0, 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
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#ifndef DD_TRIGGER_INCLUDED
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#define DD_TRIGGER_INCLUDED
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#include "lex_string.h"
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#include "sql/trigger_def.h" // enum_trigger_order_type
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struct MEM_ROOT;
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class THD;
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class Trigger;
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template <class T>
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class List;
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namespace dd {
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class Table;
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/**
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Create new trigger in the data dictionary.
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@param [in] thd thread handle
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@param [in] new_trigger Trigger object from sql-layer that describes
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a trigger to add in the Data Dictionary
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@param [in] ordering_clause Ordering property for trigger being created
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@param [in] referenced_trigger_name Information about trigger referenced by
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ordering_clause if any.
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@return Operation status
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@retval true Failure
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@retval false Success
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*/
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bool create_trigger(THD *thd, const ::Trigger *new_trigger,
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enum_trigger_order_type ordering_clause,
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const LEX_CSTRING &referenced_trigger_name);
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/**
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Load table triggers from the data dictionary.
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@param [in] thd thread handle
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@param [in] mem_root MEM_ROOT for memory allocation
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@param [in] schema_name name of schema
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@param [in] table_name subject table name
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@param [in] table table object
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@param [out] triggers pointer to the list where new Trigger
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objects will be inserted
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@return Operation status
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@retval true Failure
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@retval false Success
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*/
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bool load_triggers(THD *thd, MEM_ROOT *mem_root, const char *schema_name,
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const char *table_name, const dd::Table &table,
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List<::Trigger> *triggers);
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/**
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Check in the data dictionary if there is any trigger associated with a table.
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@param [in] thd thread handle
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@param [in] schema_name name of schema
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@param [in] table_name subject table name
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@param [out] table_has_trigger true in case there is trigger(s) for a table,
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else false
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@return Operation status
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@retval true Failure
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@retval false Success
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*/
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bool table_has_triggers(THD *thd, const char *schema_name,
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const char *table_name, bool *table_has_trigger);
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} // namespace dd
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#endif /* DD_TRIGGER_INCLUDED */
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