85 lines
2.8 KiB
C++
85 lines
2.8 KiB
C++
/* Copyright (c) 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__TABLESPACE_ID_OWNER_VISITOR_INCLUDED
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#define DD__TABLESPACE_ID_OWNER_VISITOR_INCLUDED
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#include "sql/dd/types/index.h" // dd::Index
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#include "sql/dd/types/partition.h" // dd::Partition
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#include "sql/dd/types/partition_index.h" // dd::Partition_index
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#include "sql/dd/types/table.h" // dd::Table
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namespace dd {
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/**
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Visitor function which invokes its visitor argument on any subobject
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which holds a tablespace, that is, the table itself, its m_indexes,
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its m_partitions, and m_indexes (Partition_index) of each
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partition. Visitation is terminated when the vistor closure
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returns true.
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@param t table to visit.
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@param visitor generic closure which can be applied to all
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tablespace holding objects.
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@return value of last visitor invocation.
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*/
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template <class VISITOR_TYPE>
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bool visit_tablespace_id_owners(const Table &t, VISITOR_TYPE &&visitor) {
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if (visitor(t)) {
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return true;
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}
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for (const Index *i : t.indexes()) {
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if (visitor(*i)) {
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return true;
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}
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}
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for (const Partition *p : t.partitions()) {
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if (visitor(*p)) {
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return true;
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}
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// Visit indexes for top-level partition
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for (const Partition_index *pi : p->indexes()) {
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if (visitor(*pi)) {
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return true;
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}
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}
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// Visit subpartitions, if any
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for (const Partition *sp : p->sub_partitions()) {
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if (visitor(*sp)) {
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return true;
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}
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// Visit indexes for subpartition
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for (const Partition_index *spi : sp->indexes()) {
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if (visitor(*spi)) {
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return true;
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}
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}
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}
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}
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return false;
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}
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} // namespace dd
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#endif
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