DictTable.hpp
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上传日期:2022-05-23
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- /* Copyright (C) 2003 MySQL AB
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
- #ifndef ODBC_DICTIONARY_DictTable_hpp
- #define ODBC_DICTIONARY_DictTable_hpp
- #include <vector>
- #include <list>
- #include <common/common.hpp>
- #include "DictColumn.hpp"
- #include "DictIndex.hpp"
- #include "DictSys.hpp"
- class Ctx;
- class ConnArea;
- class DictSchema;
- class DictColumn;
- class DictIndex;
- /**
- * @class DictTable
- * @brief Database table
- */
- class DictTable {
- friend class DictSchema;
- public:
- DictTable(const ConnArea& connArea, const BaseString& name, unsigned size);
- ~DictTable();
- unsigned getSize() const;
- void setParent(DictSchema* parent);
- DictSchema* getParent() const;
- void setColumn(unsigned i, DictColumn* column);
- DictColumn* getColumn(unsigned i) const;
- const BaseString& getName() const;
- DictColumn* findColumn(const BaseString& name) const;
- DictColumn* loadColumn(Ctx& ctx, unsigned position);
- unsigned keyCount() const;
- DictColumn* getKey(unsigned i) const;
- unsigned tupleId() const;
- unsigned autoIncrement() const;
- void sysId(DictSys::Id id);
- DictSys::Id sysId() const;
- // indexes
- void addIndex(DictIndex* index);
- unsigned indexCount() const;
- const DictIndex* getIndex(unsigned i) const; // indexed from 1
- protected:
- friend class DictSys;
- const ConnArea& m_connArea;
- const BaseString m_name;
- unsigned m_size;
- DictSchema* m_parent;
- typedef std::vector<DictColumn*> Columns;
- Columns m_columns;
- Columns m_keys;
- unsigned m_tupleId; // tuple id column
- unsigned m_autoIncrement; // autoincrement key
- DictSys::Id m_sysId; // built-in system table id (if non-zero)
- typedef std::vector<DictIndex*> Indexes;
- Indexes m_indexes;
- };
- inline
- DictTable::DictTable(const ConnArea& connArea, const BaseString& name, unsigned size) :
- m_connArea(connArea),
- m_name(name),
- m_size(size),
- m_parent(0),
- m_columns(1 + size),
- m_keys(1), // indexed from 1
- m_tupleId(0),
- m_autoIncrement(0),
- m_sysId(DictSys::Undef),
- m_indexes(1)
- {
- }
- inline unsigned
- DictTable::getSize() const
- {
- ctx_assert(m_columns.size() == 1 + m_size);
- return m_size;
- }
- inline void
- DictTable::setParent(DictSchema* parent)
- {
- m_parent = parent;
- }
- inline DictSchema*
- DictTable::getParent() const
- {
- return m_parent;
- }
- inline void
- DictTable::setColumn(unsigned i, DictColumn* column)
- {
- ctx_assert(1 <= i && i <= m_size);
- m_columns[i] = column;
- column->setPosition(i);
- column->setParent(this);
- }
- inline DictColumn*
- DictTable::getColumn(unsigned i) const
- {
- ctx_assert(1 <= i && i <= m_size);
- ctx_assert(m_columns[i] != 0);
- return m_columns[i];
- }
- inline const BaseString&
- DictTable::getName() const
- {
- return m_name;
- }
- inline unsigned
- DictTable::keyCount() const
- {
- ctx_assert(m_keys.size() >= 1);
- return m_keys.size() - 1;
- }
- inline DictColumn*
- DictTable::getKey(unsigned i) const
- {
- ctx_assert(1 <= i && i <= m_keys.size() && m_keys[i] != 0);
- return m_keys[i];
- }
- inline unsigned
- DictTable::tupleId() const
- {
- return m_tupleId;
- }
- inline unsigned
- DictTable::autoIncrement() const
- {
- return m_autoIncrement;
- }
- inline void
- DictTable::sysId(DictSys::Id id)
- {
- m_sysId = id;
- }
- inline DictSys::Id
- DictTable::sysId() const
- {
- return m_sysId;
- }
- inline void
- DictTable::addIndex(DictIndex* index)
- {
- m_indexes.push_back(index);
- index->setTable(this);
- }
- inline unsigned
- DictTable::indexCount() const
- {
- ctx_assert(m_indexes.size() >= 1);
- return m_indexes.size() - 1;
- }
- inline const DictIndex*
- DictTable::getIndex(unsigned i) const
- {
- ctx_assert(1 <= i && i < m_indexes.size() && m_indexes[i] != 0);
- return m_indexes[i];
- }
- #endif