162 lines
4.5 KiB
C++
162 lines
4.5 KiB
C++
/* Copyright (c) 2016, 2019, 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_TABLES__TRIGGERS_INCLUDED
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#define DD_TABLES__TRIGGERS_INCLUDED
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#include <string>
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#include "sql/dd/impl/raw/raw_record.h"
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#include "sql/dd/impl/types/object_table_definition_impl.h"
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#include "sql/dd/impl/types/object_table_impl.h" // dd::Object_table_i...
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#include "sql/dd/impl/types/trigger_impl.h" // dd::Trigger_impl
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#include "sql/dd/object_id.h"
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#include "sql/dd/string_type.h"
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class THD;
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namespace dd {
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class Object_key;
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} // namespace dd
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namespace dd {
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namespace tables {
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///////////////////////////////////////////////////////////////////////////
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class Triggers : virtual public Object_table_impl {
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public:
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static const Triggers &instance() {
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static Triggers *s_instance = new Triggers();
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return *s_instance;
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}
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static const CHARSET_INFO *name_collation();
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enum enum_fields {
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FIELD_ID,
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FIELD_SCHEMA_ID,
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FIELD_NAME,
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FIELD_EVENT_TYPE,
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FIELD_TABLE_ID,
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FIELD_ACTION_TIMING,
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FIELD_ACTION_ORDER,
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FIELD_ACTION_STATEMENT,
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FIELD_ACTION_STATEMENT_UTF8,
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FIELD_CREATED,
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FIELD_LAST_ALTERED,
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FIELD_SQL_MODE,
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FIELD_DEFINER,
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FIELD_CLIENT_COLLATION_ID,
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FIELD_CONNECTION_COLLATION_ID,
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FIELD_SCHEMA_COLLATION_ID,
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FIELD_OPTIONS,
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NUMBER_OF_FIELDS // Always keep this entry at the end of the enum
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};
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enum enum_indexes {
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INDEX_PK_ID = static_cast<uint>(Common_index::PK_ID),
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INDEX_UK_SCHEMA_ID_NAME = static_cast<uint>(Common_index::UK_NAME),
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INDEX_UK_TABLE_ID_EVENT_TYPE_ACTION_TIMING_ACTION_ORDER,
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INDEX_K_CLIENT_COLLATION_ID,
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INDEX_K_CONNECTION_COLLATION_ID,
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INDEX_K_SCHEMA_COLLATION_ID
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};
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enum enum_foreign_keys {
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FK_SCHEMA_ID,
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FK_TABLE_ID,
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FK_CLIENT_COLLATION_ID,
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FK_CONNECTION_COLLATION_ID,
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FK_SCHEMA_COLLATION_ID
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};
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Triggers();
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/**
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Create a key to find all triggers for a given schema.
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@param schema_id Object_id of the schema.
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@returns Pointer to Object_key.
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*/
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static Object_key *create_key_by_schema_id(Object_id schema_id);
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/**
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Create a key to find all triggers for a given table.
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@param table_id Object_id of the table.
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@returns Pointer to Object_key.
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*/
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static Object_key *create_key_by_table_id(Object_id table_id);
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/**
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Find table's Object_id for a given trigger name.
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@param thd Thread
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@param schema_id Object_id of schema in which the trigger exists.
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@param trigger_name Name of trigger we are search for.
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@param oid [out] The Object_id of trigger.
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@returns
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false on success.
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true upon failure.
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*/
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static bool get_trigger_table_id(THD *thd, Object_id schema_id,
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const String_type &trigger_name,
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Object_id *oid);
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private:
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/**
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Create a key to find a trigger by schema_id and trigger name.
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@param schema_id Object_id of the table.
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@param trigger_name Name of trigger.
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@returns Pointer to Object_key.
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*/
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static Object_key *create_key_by_trigger_name(Object_id schema_id,
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const char *trigger_name);
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/**
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Get the table id from the record.
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@param r const Reference to the Raw_record.
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@returns Object_id of the table.
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*/
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static Object_id read_table_id(const Raw_record &r);
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};
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///////////////////////////////////////////////////////////////////////////
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} // namespace tables
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} // namespace dd
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#endif // DD_TABLES__TRIGGERS_INCLUDED
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